diff --git a/example-config.yaml b/example-config.yaml
index a91ee949..d2807b30 100644
--- a/example-config.yaml
+++ b/example-config.yaml
@@ -107,12 +107,12 @@ bridge:
     # If no channel admins have logged into the bridge, the bridge won't be able to sync the member
     # list regardless of this setting.
     sync_channel_members: true
-    # Whether or not to automatically sync the Matrix room state (mostly unpuppeted displaynames)
-    # at startup and when creating a bridge.
-    sync_matrix_state: true
     # The maximum number of simultaneous Telegram deletions to handle.
     # A large number of simultaneous redactions could put strain on your homeserver.
     max_telegram_delete: 10
+    # Whether or not to automatically sync the Matrix room state (mostly unpuppeted displaynames)
+    # at startup and when creating a bridge.
+    sync_matrix_state: true
     # Allow logging in within Matrix. If false, the only way to log in is using the out-of-Matrix
     # login website (see appservice.public config section)
     allow_matrix_login: true
@@ -120,6 +120,9 @@ bridge:
     # Only enable this if your displayname_template has some static part that the bridge can use to
     # reliably identify what is a plaintext highlight.
     plaintext_highlights: false
+    # Show message editing as a reply to the original message.
+    # If this is false, message edits are not shown at all, as Matrix does not support editing yet.
+    edits_as_replies: true
     # Highlight changed/added parts in edits. Requires lxml.
     highlight_edits: false
     # Whether or not to make portals of publicly joinable channels/supergroups publicly joinable on Matrix.
@@ -132,6 +135,20 @@ bridge:
     sync_with_custom_puppets: true
     # Set to false to disable link previews in messages sent to Telegram.
     telegram_link_preview: true
+    # Use inline images instead of a separate message for the caption.
+    # N.B. Inline images are not supported on all clients (e.g. Riot iOS).
+    inline_images: false
+
+    # Whether to bridge Telegram bot messages as m.notices or m.texts.
+    bot_messages_as_notices: true
+    bridge_notices:
+        # Whether or not Matrix bot messages (type m.notice) should be bridged.
+        default: false
+        # List of user IDs for whom the previous flag is flipped.
+        # e.g. if bridge_notices.default is false, notices from other users will not be bridged, but
+        #      notices from users listed here will be bridged.
+        exceptions:
+        - "@importantbot:example.com"
 
     # Some config options related to Telegram message deduplication.
     # The default values are usually fine, but some debug messages/warnings might recommend you
@@ -143,26 +160,6 @@ bridge:
         # You might need to increase this on high-traffic bridge instances.
         cache_queue_length: 20
 
-    # Show message editing as a reply to the original message.
-    # If this is false, message edits are not shown at all, as Matrix does not support editing yet.
-    edits_as_replies: false
-    bridge_notices:
-        # Whether or not Matrix bot messages (type m.notice) should be bridged.
-        default: false
-        # List of user IDs for whom the previous flag is flipped.
-        # e.g. if bridge_notices.default is false, notices from other users will not be bridged, but
-        #      notices from users listed here will be bridged.
-        exceptions:
-        - "@importantbot:example.com"
-    # Whether to bridge Telegram bot messages as m.notices or m.texts.
-    bot_messages_as_notices: true
-    # Use inline images instead of a separate message for the caption.
-    # N.B. Inline images are not supported on all clients (e.g. Riot iOS).
-    inline_images: false
-    # Whether to send stickers as the new native m.sticker type or normal m.images.
-    # Old versions of Riot don't support the new type at all.
-    # Remember that proper sticker support always requires Pillow to convert webp into png.
-    native_stickers: true
 
     # The formats to use when sending messages to Telegram via the relay bot.
     #
diff --git a/mautrix_telegram/commands/__init__.py b/mautrix_telegram/commands/__init__.py
index 7e376fa4..cb11c5f0 100644
--- a/mautrix_telegram/commands/__init__.py
+++ b/mautrix_telegram/commands/__init__.py
@@ -2,4 +2,4 @@
                       CommandHandler, CommandProcessor, CommandEvent,
                       SECTION_GENERAL, SECTION_AUTH, SECTION_CREATING_PORTALS,
                       SECTION_PORTAL_MANAGEMENT, SECTION_MISC, SECTION_ADMIN)
-from . import clean_rooms, auth, meta, telegram, portal
+from . import portal, telegram, clean_rooms, matrix_auth, meta
diff --git a/mautrix_telegram/commands/matrix_auth.py b/mautrix_telegram/commands/matrix_auth.py
new file mode 100644
index 00000000..d1ccad17
--- /dev/null
+++ b/mautrix_telegram/commands/matrix_auth.py
@@ -0,0 +1,101 @@
+# -*- coding: future_fstrings -*-
+# mautrix-telegram - A Matrix-Telegram puppeting bridge
+# Copyright (C) 2018 Tulir Asokan
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+from typing import Dict, Optional
+
+from . import command_handler, CommandEvent, SECTION_AUTH
+from .. import puppet as pu
+
+
+@command_handler(needs_auth=True, needs_matrix_puppeting=True,
+                 help_section=SECTION_AUTH,
+                 help_text="Revert your Telegram account's Matrix puppet to use the default Matrix "
+                           "account.")
+async def logout_matrix(evt: CommandEvent) -> Optional[Dict]:
+    puppet = pu.Puppet.get(evt.sender.tgid)
+    if not puppet.is_real_user:
+        return await evt.reply("You are not logged in with your Matrix account.")
+    await puppet.switch_mxid(None, None)
+    return await evt.reply("Reverted your Telegram account's Matrix puppet back to the default.")
+
+
+@command_handler(needs_auth=True, management_only=True, needs_matrix_puppeting=True,
+                 help_section=SECTION_AUTH,
+                 help_text="Replace your Telegram account's Matrix puppet with your own Matrix "
+                           "account")
+async def login_matrix(evt: CommandEvent) -> Optional[Dict]:
+    puppet = pu.Puppet.get(evt.sender.tgid)
+    if puppet.is_real_user:
+        return await evt.reply("You have already logged in with your Matrix account. "
+                               "Log out with `$cmdprefix+sp logout-matrix` first.")
+    allow_matrix_login = evt.config.get("bridge.allow_matrix_login", True)
+    if allow_matrix_login:
+        evt.sender.command_status = {
+            "next": enter_matrix_token,
+            "action": "Matrix login",
+        }
+    if evt.config["appservice.public.enabled"]:
+        prefix = evt.config["appservice.public.external"]
+        token = evt.public_website.make_token(evt.sender.mxid, "/matrix-login")
+        url = f"{prefix}/matrix-login?token={token}"
+        if allow_matrix_login:
+            return await evt.reply(
+                "This bridge instance allows you to log in inside or outside Matrix.\n\n"
+                "If you would like to log in within Matrix, please send your Matrix access token "
+                "here.\n"
+                f"If you would like to log in outside of Matrix, [click here]({url}).\n\n"
+                "Logging in outside of Matrix is recommended, because in-Matrix login would save "
+                "your access token in the message history.")
+        return await evt.reply("This bridge instance does not allow logging in inside Matrix.\n\n"
+                               f"Please visit [the login page]({url}) to log in.")
+    elif allow_matrix_login:
+        return await evt.reply(
+            "This bridge instance does not allow you to log in outside of Matrix.\n\n"
+            "Please send your Matrix access token here to log in.")
+    return await evt.reply("This bridge instance has been configured to not allow logging in.")
+
+
+@command_handler(needs_auth=True, needs_matrix_puppeting=True,
+                 help_section=SECTION_AUTH,
+                 help_text="Pings the server with the stored matrix authentication")
+async def ping_matrix(evt: CommandEvent) -> Optional[Dict]:
+    puppet = pu.Puppet.get(evt.sender.tgid)
+    if not puppet.is_real_user:
+        return await evt.reply("You are not logged in with your Matrix account.")
+    resp = await puppet.init_custom_mxid()
+    if resp == pu.PuppetError.InvalidAccessToken:
+        return await evt.reply("Your access token is invalid.")
+    elif resp == pu.PuppetError.Success:
+        return await evt.reply("Your Matrix login is working.")
+    return await evt.reply(f"Unknown response while checking your Matrix login: {resp}.")
+
+
+async def enter_matrix_token(evt: CommandEvent) -> Dict:
+    evt.sender.command_status = None
+
+    puppet = pu.Puppet.get(evt.sender.tgid)
+    if puppet.is_real_user:
+        return await evt.reply("You have already logged in with your Matrix account. "
+                               "Log out with `$cmdprefix+sp logout-matrix` first.")
+
+    resp = await puppet.switch_mxid(" ".join(evt.args), evt.sender.mxid)
+    if resp == pu.PuppetError.OnlyLoginSelf:
+        return await evt.reply("You can only log in as your own Matrix user.")
+    elif resp == pu.PuppetError.InvalidAccessToken:
+        return await evt.reply("Failed to verify access token.")
+    assert resp == pu.PuppetError.Success, "Encountered an unhandled PuppetError."
+    return await evt.reply(
+        f"Replaced your Telegram account's Matrix puppet with {puppet.custom_mxid}.")
diff --git a/mautrix_telegram/commands/portal.py b/mautrix_telegram/commands/portal.py
deleted file mode 100644
index f5cb0433..00000000
--- a/mautrix_telegram/commands/portal.py
+++ /dev/null
@@ -1,646 +0,0 @@
-# -*- coding: future_fstrings -*-
-# mautrix-telegram - A Matrix-Telegram puppeting bridge
-# Copyright (C) 2018 Tulir Asokan
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU Affero General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU Affero General Public License for more details.
-#
-# You should have received a copy of the GNU Affero General Public License
-# along with this program.  If not, see <https://www.gnu.org/licenses/>.
-from typing import Dict, Callable, Optional, Tuple, Coroutine, Awaitable
-from io import StringIO
-import asyncio
-
-from telethon.errors import (ChatAdminRequiredError, UsernameInvalidError,
-                             UsernameNotModifiedError, UsernameOccupiedError)
-from telethon.tl.types import ChatForbidden, ChannelForbidden
-from mautrix_appservice import MatrixRequestError, IntentAPI
-
-from ..types import MatrixRoomID, TelegramID
-from ..config import yaml
-from ..util import ignore_coro
-from .. import portal as po, user as u, util
-from . import (command_handler, CommandEvent,
-               SECTION_ADMIN, SECTION_CREATING_PORTALS, SECTION_PORTAL_MANAGEMENT, SECTION_MISC)
-
-
-@command_handler(needs_admin=True, needs_auth=False, name="set-pl",
-                 help_section=SECTION_ADMIN,
-                 help_args="<_level_> [_mxid_]",
-                 help_text="Set a temporary power level without affecting Telegram.")
-async def set_power_level(evt: CommandEvent) -> Dict:
-    try:
-        level = int(evt.args[0])
-    except KeyError:
-        return await evt.reply("**Usage:** `$cmdprefix+sp set-power <level> [mxid]`")
-    except ValueError:
-        return await evt.reply("The level must be an integer.")
-    levels = await evt.az.intent.get_power_levels(evt.room_id)
-    mxid = evt.args[1] if len(evt.args) > 1 else evt.sender.mxid
-    levels["users"][mxid] = level
-    try:
-        await evt.az.intent.set_power_levels(evt.room_id, levels)
-    except MatrixRequestError:
-        evt.log.exception("Failed to set power level.")
-        return await evt.reply("Failed to set power level.")
-    return {}
-
-
-@command_handler(needs_admin=False, needs_puppeting=False, needs_auth=False,
-                 help_section=SECTION_MISC,
-                 help_text="Fetch Matrix room state to ensure the bridge has up-to-date info.")
-async def sync_state(evt: CommandEvent) -> Dict:
-    portal = po.Portal.get_by_mxid(evt.room_id)
-    if not portal:
-        return await evt.reply("This is not a portal room.")
-    elif not await user_has_power_level(evt.room_id, evt.az.intent, evt.sender, "bridge"):
-        return await evt.reply(f"You do not have the permissions to synchronize this room.")
-
-    await portal.sync_matrix_members()
-    await evt.reply("Synchronization complete")
-
-
-@command_handler(needs_admin=False, needs_puppeting=False, needs_auth=False,
-                 help_section=SECTION_MISC,
-                 help_text="Get the ID of the Telegram chat where this room is bridged.")
-async def id(evt: CommandEvent) -> Dict:
-    portal = po.Portal.get_by_mxid(evt.room_id)
-    if not portal:
-        return await evt.reply("This is not a portal room.")
-    tgid = portal.tgid
-    if portal.peer_type == "chat":
-        tgid = -tgid
-    elif portal.peer_type == "channel":
-        tgid = f"-100{tgid}"
-    await evt.reply(f"This room is bridged to Telegram chat ID `{tgid}`.")
-
-
-@command_handler(help_section=SECTION_PORTAL_MANAGEMENT,
-                 help_text="Get a Telegram invite link to the current chat.")
-async def invite_link(evt: CommandEvent) -> Dict:
-    portal = po.Portal.get_by_mxid(evt.room_id)
-    if not portal:
-        return await evt.reply("This is not a portal room.")
-
-    if portal.peer_type == "user":
-        return await evt.reply("You can't invite users to private chats.")
-
-    try:
-        link = await portal.get_invite_link(evt.sender)
-        return await evt.reply(f"Invite link to {portal.title}: {link}")
-    except ValueError as e:
-        return await evt.reply(e.args[0])
-    except ChatAdminRequiredError:
-        return await evt.reply("You don't have the permission to create an invite link.")
-
-
-async def user_has_power_level(room: str, intent, sender: u.User, event: str, default: int = 50
-                               ) -> bool:
-    if sender.is_admin:
-        return True
-    # Make sure the state store contains the power levels.
-    try:
-        await intent.get_power_levels(room)
-    except MatrixRequestError:
-        return False
-    return intent.state_store.has_power_level(room, sender.mxid,
-                                              event=f"net.maunium.telegram.{event}",
-                                              default=default)
-
-
-async def _get_portal_and_check_permission(evt: CommandEvent, permission: str,
-                                           action: Optional[str] = None
-                                           ) -> Optional[po.Portal]:
-    room_id = MatrixRoomID(evt.args[0]) if len(evt.args) > 0 else evt.room_id
-
-    portal = po.Portal.get_by_mxid(room_id)
-    if not portal:
-        that_this = "This" if room_id == evt.room_id else "That"
-        await evt.reply(f"{that_this} is not a portal room.")
-        return None
-
-    if not await user_has_power_level(portal.mxid, evt.az.intent, evt.sender, permission):
-        action = action or f"{permission.replace('_', ' ')}s"
-        await evt.reply(f"You do not have the permissions to {action} that portal.")
-        return None
-    return portal
-
-
-def _get_portal_murder_function(action: str, room_id: str, function: Callable, command: str,
-                                completed_message: str) -> Dict:
-    async def post_confirm(confirm) -> Optional[Dict]:
-        confirm.sender.command_status = None
-        if len(confirm.args) > 0 and confirm.args[0] == f"confirm-{command}":
-            await function()
-            if confirm.room_id != room_id:
-                return await confirm.reply(completed_message)
-        else:
-            return await confirm.reply(f"{action} cancelled.")
-        return None
-
-    return {
-        "next": post_confirm,
-        "action": action,
-    }
-
-
-@command_handler(needs_auth=False, needs_puppeting=False,
-                 help_section=SECTION_PORTAL_MANAGEMENT,
-                 help_text="Remove all users from the current portal room and forget the portal. "
-                           "Only works for group chats; to delete a private chat portal, simply "
-                           "leave the room.")
-async def delete_portal(evt: CommandEvent) -> Optional[Dict]:
-    portal = await _get_portal_and_check_permission(evt, "unbridge")
-    if not portal:
-        return None
-
-    evt.sender.command_status = _get_portal_murder_function("Portal deletion", portal.mxid,
-                                                            portal.cleanup_and_delete, "delete",
-                                                            "Portal successfully deleted.")
-    return await evt.reply("Please confirm deletion of portal "
-                           f"[{portal.alias or portal.mxid}](https://matrix.to/#/{portal.mxid}) "
-                           f"to Telegram chat \"{portal.title}\" "
-                           "by typing `$cmdprefix+sp confirm-delete`"
-                           "\n\n"
-                           "**WARNING:** If the bridge bot has the power level to do so, **this "
-                           "will kick ALL users** in the room. If you just want to remove the "
-                           "bridge, use `$cmdprefix+sp unbridge` instead.")
-
-
-@command_handler(needs_auth=False, needs_puppeting=False,
-                 help_section=SECTION_PORTAL_MANAGEMENT,
-                 help_text="Remove puppets from the current portal room and forget the portal.")
-async def unbridge(evt: CommandEvent) -> Optional[Dict]:
-    portal = await _get_portal_and_check_permission(evt, "unbridge")
-    if not portal:
-        return None
-
-    evt.sender.command_status = _get_portal_murder_function("Room unbridging", portal.mxid,
-                                                            portal.unbridge, "unbridge",
-                                                            "Room successfully unbridged.")
-    return await evt.reply(f"Please confirm unbridging chat \"{portal.title}\" from room "
-                           f"[{portal.alias or portal.mxid}](https://matrix.to/#/{portal.mxid}) "
-                           "by typing `$cmdprefix+sp confirm-unbridge`")
-
-
-@command_handler(needs_auth=False, needs_puppeting=False,
-                 help_section=SECTION_PORTAL_MANAGEMENT,
-                 help_args="[_id_]",
-                 help_text="Bridge the current Matrix room to the Telegram chat with the given "
-                           "ID. The ID must be the prefixed version that you get with the `/id` "
-                           "command of the Telegram-side bot.")
-async def bridge(evt: CommandEvent) -> Dict:
-    if len(evt.args) == 0:
-        return await evt.reply("**Usage:** "
-                               "`$cmdprefix+sp bridge <Telegram chat ID> [Matrix room ID]`")
-    room_id = MatrixRoomID(evt.args[1]) if len(evt.args) > 1 else evt.room_id
-    that_this = "This" if room_id == evt.room_id else "That"
-
-    portal = po.Portal.get_by_mxid(room_id)
-    if portal:
-        return await evt.reply(f"{that_this} room is already a portal room.")
-
-    if not await user_has_power_level(room_id, evt.az.intent, evt.sender, "bridge"):
-        return await evt.reply(f"You do not have the permissions to bridge {that_this} room.")
-
-    # The /id bot command provides the prefixed ID, so we assume
-    tgid_str = evt.args[0]
-    if tgid_str.startswith("-100"):
-        tgid = TelegramID(int(tgid_str[4:]))
-        peer_type = "channel"
-    elif tgid_str.startswith("-"):
-        tgid = TelegramID(-int(tgid_str))
-        peer_type = "chat"
-    else:
-        return await evt.reply("That doesn't seem like a prefixed Telegram chat ID.\n\n"
-                               "If you did not get the ID using the `/id` bot command, please "
-                               "prefix channel IDs with `-100` and normal group IDs with `-`.\n\n"
-                               "Bridging private chats to existing rooms is not allowed.")
-
-    portal = po.Portal.get_by_tgid(tgid, peer_type=peer_type)
-    if not portal.allow_bridging():
-        return await evt.reply("This bridge doesn't allow bridging that Telegram chat.\n"
-                               "If you're the bridge admin, try "
-                               "`$cmdprefix+sp filter whitelist <Telegram chat ID>` first.")
-    if portal.mxid:
-        has_portal_message = (
-            "That Telegram chat already has a portal at "
-            f"[{portal.alias or portal.mxid}](https://matrix.to/#/{portal.mxid}). ")
-        if not await user_has_power_level(portal.mxid, evt.az.intent, evt.sender, "unbridge"):
-            return await evt.reply(f"{has_portal_message}"
-                                   "Additionally, you do not have the permissions to unbridge "
-                                   "that room.")
-        evt.sender.command_status = {
-            "next": confirm_bridge,
-            "action": "Room bridging",
-            "mxid": portal.mxid,
-            "bridge_to_mxid": room_id,
-            "tgid": portal.tgid,
-            "peer_type": portal.peer_type,
-        }
-        return await evt.reply(f"{has_portal_message}"
-                               "However, you have the permissions to unbridge that room.\n\n"
-                               "To delete that portal completely and continue bridging, use "
-                               "`$cmdprefix+sp delete-and-continue`. To unbridge the portal "
-                               "without kicking Matrix users, use `$cmdprefix+sp unbridge-and-"
-                               "continue`. To cancel, use `$cmdprefix+sp cancel`")
-    evt.sender.command_status = {
-        "next": confirm_bridge,
-        "action": "Room bridging",
-        "bridge_to_mxid": room_id,
-        "tgid": portal.tgid,
-        "peer_type": portal.peer_type,
-    }
-    return await evt.reply("That Telegram chat has no existing portal. To confirm bridging the "
-                           "chat to this room, use `$cmdprefix+sp continue`")
-
-
-async def cleanup_old_portal_while_bridging(evt: CommandEvent, portal: "po.Portal"
-                                            ) -> Tuple[bool, Optional[Coroutine[None, None, None]]]:
-    if not portal.mxid:
-        await evt.reply("The portal seems to have lost its Matrix room between you"
-                        "calling `$cmdprefix+sp bridge` and this command.\n\n"
-                        "Continuing without touching previous Matrix room...")
-        return True, None
-    elif evt.args[0] == "delete-and-continue":
-        return True, portal.cleanup_room(portal.main_intent, portal.mxid,
-                                         message="Portal deleted (moving to another room)")
-    elif evt.args[0] == "unbridge-and-continue":
-        return True, portal.cleanup_room(portal.main_intent, portal.mxid,
-                                         message="Room unbridged (portal moving to another room)",
-                                         puppets_only=True)
-    else:
-        await evt.reply(
-            "The chat you were trying to bridge already has a Matrix portal room.\n\n"
-            "Please use `$cmdprefix+sp delete-and-continue` or `$cmdprefix+sp unbridge-and-"
-            "continue` to either delete or unbridge the existing room (respectively) and "
-            "continue with the bridging.\n\n"
-            "If you changed your mind, use `$cmdprefix+sp cancel` to cancel.")
-        return False, None
-
-
-async def confirm_bridge(evt: CommandEvent) -> Optional[Dict]:
-    status = evt.sender.command_status
-    try:
-        portal = po.Portal.get_by_tgid(status["tgid"], peer_type=status["peer_type"])
-        bridge_to_mxid = status["bridge_to_mxid"]
-    except KeyError:
-        evt.sender.command_status = None
-        return await evt.reply("Fatal error: tgid or peer_type missing from command_status. "
-                               "This shouldn't happen unless you're messing with the command "
-                               "handler code.")
-    if "mxid" in status:
-        ok, coro = await cleanup_old_portal_while_bridging(evt, portal)
-        if not ok:
-            return None
-        elif coro:
-            ignore_coro(asyncio.ensure_future(coro, loop=evt.loop))
-            await evt.reply("Cleaning up previous portal room...")
-    elif portal.mxid:
-        evt.sender.command_status = None
-        return await evt.reply("The portal seems to have created a Matrix room between you "
-                               "calling `$cmdprefix+sp bridge` and this command.\n\n"
-                               "Please start over by calling the bridge command again.")
-    elif evt.args[0] != "continue":
-        return await evt.reply("Please use `$cmdprefix+sp continue` to confirm the bridging or "
-                               "`$cmdprefix+sp cancel` to cancel.")
-
-    evt.sender.command_status = None
-    is_logged_in = await evt.sender.is_logged_in()
-    user = evt.sender if is_logged_in else evt.tgbot
-    try:
-        entity = await user.client.get_entity(portal.peer)
-    except Exception:
-        evt.log.exception("Failed to get_entity(%s) for manual bridging.", portal.peer)
-        if is_logged_in:
-            return await evt.reply("Failed to get info of telegram chat. "
-                                   "You are logged in, are you in that chat?")
-        else:
-            return await evt.reply("Failed to get info of telegram chat. "
-                                   "You're not logged in, is the relay bot in the chat?")
-    if isinstance(entity, (ChatForbidden, ChannelForbidden)):
-        if is_logged_in:
-            return await evt.reply("You don't seem to be in that chat.")
-        else:
-            return await evt.reply("The bot doesn't seem to be in that chat.")
-
-    direct = False
-
-    portal.mxid = bridge_to_mxid
-    portal.title, portal.about, levels = await get_initial_state(evt.az.intent, evt.room_id)
-    portal.photo_id = ""
-    portal.save()
-
-    ignore_coro(asyncio.ensure_future(portal.update_matrix_room(user, entity, direct,
-                                                                levels=levels),
-                                      loop=evt.loop))
-
-    return await evt.reply("Bridging complete. Portal synchronization should begin momentarily.")
-
-
-async def get_initial_state(intent: IntentAPI, room_id: str) -> Tuple[str, str, Dict]:
-    state = await intent.get_room_state(room_id)
-    title = None
-    about = None
-    levels = None
-    for event in state:
-        try:
-            if event["type"] == "m.room.name":
-                title = event["content"]["name"]
-            elif event["type"] == "m.room.topic":
-                about = event["content"]["topic"]
-            elif event["type"] == "m.room.power_levels":
-                levels = event["content"]
-            elif event["type"] == "m.room.canonical_alias":
-                title = title or event["content"]["alias"]
-        except KeyError:
-            # Some state event probably has empty content
-            pass
-    return title, about, levels
-
-
-@command_handler(help_section=SECTION_CREATING_PORTALS,
-                 help_args="[_type_]",
-                 help_text="Create a Telegram chat of the given type for the current Matrix room. "
-                           "The type is either `group`, `supergroup` or `channel` (defaults to "
-                           "`group`).")
-async def create(evt: CommandEvent) -> Dict:
-    type = evt.args[0] if len(evt.args) > 0 else "group"
-    if type not in {"chat", "group", "supergroup", "channel"}:
-        return await evt.reply(
-            "**Usage:** `$cmdprefix+sp create ['group'/'supergroup'/'channel']`")
-
-    if po.Portal.get_by_mxid(evt.room_id):
-        return await evt.reply("This is already a portal room.")
-
-    if not await user_has_power_level(evt.room_id, evt.az.intent, evt.sender, "bridge"):
-        return await evt.reply("You do not have the permissions to bridge this room.")
-
-    title, about, levels = await get_initial_state(evt.az.intent, evt.room_id)
-    if not title:
-        return await evt.reply("Please set a title before creating a Telegram chat.")
-
-    supergroup = type == "supergroup"
-    type = {
-        "supergroup": "channel",
-        "channel": "channel",
-        "chat": "chat",
-        "group": "chat",
-    }[type]
-
-    portal = po.Portal(tgid=None, mxid=evt.room_id, title=title, about=about, peer_type=type)
-    try:
-        await portal.create_telegram_chat(evt.sender, supergroup=supergroup)
-    except ValueError as e:
-        portal.delete()
-        return await evt.reply(e.args[0])
-    return await evt.reply(f"Telegram chat created. ID: {portal.tgid}")
-
-
-@command_handler(help_section=SECTION_PORTAL_MANAGEMENT,
-                 help_text="Upgrade a normal Telegram group to a supergroup.")
-async def upgrade(evt: CommandEvent) -> Dict:
-    portal = po.Portal.get_by_mxid(evt.room_id)
-    if not portal:
-        return await evt.reply("This is not a portal room.")
-    elif portal.peer_type == "channel":
-        return await evt.reply("This is already a supergroup or a channel.")
-    elif portal.peer_type == "user":
-        return await evt.reply("You can't upgrade private chats.")
-
-    try:
-        await portal.upgrade_telegram_chat(evt.sender)
-        return await evt.reply(f"Group upgraded to supergroup. New ID: -100{portal.tgid}")
-    except ChatAdminRequiredError:
-        return await evt.reply("You don't have the permission to upgrade this group.")
-    except ValueError as e:
-        return await evt.reply(e.args[0])
-
-
-@command_handler(help_section=SECTION_PORTAL_MANAGEMENT,
-                 help_text="View or change per-portal settings.",
-                 help_args="<`help`|_subcommand_> [...]")
-async def config(evt: CommandEvent) -> None:
-    cmd = evt.args[0].lower() if len(evt.args) > 0 else "help"
-    if cmd not in ("view", "defaults", "set", "unset", "add", "del"):
-        await config_help(evt)
-        return
-    elif cmd == "defaults":
-        await config_defaults(evt)
-        return
-
-    portal = po.Portal.get_by_mxid(evt.room_id)
-    if not portal:
-        await evt.reply("This is not a portal room.")
-        return
-    elif cmd == "view":
-        await config_view(evt, portal)
-        return
-
-    key = evt.args[1] if len(evt.args) > 1 else None
-    value = yaml.load(" ".join(evt.args[2:])) if len(evt.args) > 2 else None
-    if cmd == "set":
-        await config_set(evt, portal, key, value)
-    elif cmd == "unset":
-        await config_unset(evt, portal, key)
-    elif cmd == "add" or cmd == "del":
-        await config_add_del(evt, portal, key, value, cmd)
-    else:
-        return
-    portal.save()
-
-
-def config_help(evt: CommandEvent) -> Awaitable[Dict]:
-    return evt.reply("""**Usage:** `$cmdprefix config <subcommand> [...]`. Subcommands:
-
-* **help** - View this help text.
-* **view** - View the current config data.
-* **defaults** - View the default config values.
-* **set** <_key_> <_value_> - Set a config value.
-* **unset** <_key_> - Remove a config value.
-* **add** <_key_> <_value_> - Add a value to an array.
-* **del** <_key_> <_value_> - Remove a value from an array.
-""")
-
-
-def config_view(evt: CommandEvent, portal: po.Portal) -> Awaitable[Dict]:
-    stream = StringIO()
-    yaml.dump(portal.local_config, stream)
-    return evt.reply(f"Room-specific config:\n\n```yaml\n{stream.getvalue()}```")
-
-
-def config_defaults(evt: CommandEvent) -> Awaitable[Dict]:
-    stream = StringIO()
-    yaml.dump({
-        "edits_as_replies": evt.config["bridge.edits_as_replies"],
-        "bridge_notices": {
-            "default": evt.config["bridge.bridge_notices.default"],
-            "exceptions": evt.config["bridge.bridge_notices.exceptions"],
-        },
-        "bot_messages_as_notices": evt.config["bridge.bot_messages_as_notices"],
-        "inline_images": evt.config["bridge.inline_images"],
-        "native_stickers": evt.config["bridge.native_stickers"],
-        "message_formats": evt.config["bridge.message_formats"],
-        "state_event_formats": evt.config["bridge.state_event_formats"],
-        "telegram_link_preview": evt.config["bridge.telegram_link_preview"],
-    }, stream)
-    return evt.reply(f"Bridge instance wide config:\n\n```yaml\n{stream.getvalue()}```")
-
-
-def config_set(evt: CommandEvent, portal: po.Portal, key: str, value: str) -> Awaitable[Dict]:
-    if not key or value is None:
-        return evt.reply(f"**Usage:** `$cmdprefix+sp config set <key> <value>`")
-    elif util.recursive_set(portal.local_config, key, value):
-        return evt.reply(f"Successfully set the value of `{key}` to `{value}`.")
-    else:
-        return evt.reply(f"Failed to set value of `{key}`. "
-                         "Does the path contain non-map types?")
-
-
-def config_unset(evt: CommandEvent, portal: po.Portal, key: str) -> Awaitable[Dict]:
-    if not key:
-        return evt.reply(f"**Usage:** `$cmdprefix+sp config unset <key>`")
-    elif util.recursive_del(portal.local_config, key):
-        return evt.reply(f"Successfully deleted `{key}` from config.")
-    else:
-        return evt.reply(f"`{key}` not found in config.")
-
-
-def config_add_del(evt: CommandEvent, portal: po.Portal, key: str, value: str, cmd: str
-                   ) -> Awaitable[Dict]:
-    if not key or value is None:
-        return evt.reply(f"**Usage:** `$cmdprefix+sp config {cmd} <key> <value>`")
-
-    arr = util.recursive_get(portal.local_config, key)
-    if not arr:
-        return evt.reply(f"`{key}` not found in config. "
-                         f"Maybe do `$cmdprefix+sp config set {key} []` first?")
-    elif not isinstance(arr, list):
-        return evt.reply("`{key}` does not seem to be an array.")
-    elif cmd == "add":
-        if value in arr:
-            return evt.reply(f"The array at `{key}` already contains `{value}`.")
-        arr.append(value)
-        return evt.reply(f"Successfully added `{value}` to the array at `{key}`")
-    else:
-        if value not in arr:
-            return evt.reply(f"The array at `{key}` does not contain `{value}`.")
-        arr.remove(value)
-        return evt.reply(f"Successfully removed `{value}` from the array at `{key}`")
-
-
-@command_handler(help_section=SECTION_PORTAL_MANAGEMENT,
-                 help_args="<_name_|`-`>",
-                 help_text="Change the username of a supergroup/channel. "
-                           "To disable, use a dash (`-`) as the name.")
-async def group_name(evt: CommandEvent) -> Dict:
-    if len(evt.args) == 0:
-        return await evt.reply("**Usage:** `$cmdprefix+sp group-name <name/->`")
-
-    portal = po.Portal.get_by_mxid(evt.room_id)
-    if not portal:
-        return await evt.reply("This is not a portal room.")
-    elif portal.peer_type != "channel":
-        return await evt.reply("Only channels and supergroups have usernames.")
-
-    try:
-        await portal.set_telegram_username(evt.sender,
-                                           evt.args[0] if evt.args[0] != "-" else "")
-        if portal.username:
-            return await evt.reply(f"Username of channel changed to {portal.username}.")
-        else:
-            return await evt.reply(f"Channel is now private.")
-    except ChatAdminRequiredError:
-        return await evt.reply(
-            "You don't have the permission to set the username of this channel.")
-    except UsernameNotModifiedError:
-        if portal.username:
-            return await evt.reply("That is already the username of this channel.")
-        else:
-            return await evt.reply("This channel is already private")
-    except UsernameOccupiedError:
-        return await evt.reply("That username is already in use.")
-    except UsernameInvalidError:
-        return await evt.reply("Invalid username")
-
-
-@command_handler(needs_admin=True,
-                 help_section=SECTION_ADMIN,
-                 help_args="<`whitelist`|`blacklist`>",
-                 help_text="Change whether the bridge will allow or disallow bridging rooms by "
-                           "default.")
-async def filter_mode(evt: CommandEvent) -> Dict:
-    try:
-        mode = evt.args[0]
-        if mode not in ("whitelist", "blacklist"):
-            raise ValueError()
-    except (IndexError, ValueError):
-        return await evt.reply("**Usage:** `$cmdprefix+sp filter-mode <whitelist/blacklist>`")
-
-    evt.config["bridge.filter.mode"] = mode
-    evt.config.save()
-    po.Portal.filter_mode = mode
-    if mode == "whitelist":
-        return await evt.reply("The bridge will now disallow bridging chats by default.\n"
-                               "To allow bridging a specific chat, use"
-                               "`!filter whitelist <chat ID>`.")
-    else:
-        return await evt.reply("The bridge will now allow bridging chats by default.\n"
-                               "To disallow bridging a specific chat, use"
-                               "`!filter blacklist <chat ID>`.")
-
-
-@command_handler(needs_admin=True,
-                 help_section=SECTION_ADMIN,
-                 help_args="<`whitelist`|`blacklist`> <_chat ID_>",
-                 help_text="Allow or disallow bridging a specific chat.")
-async def filter(evt: CommandEvent) -> Optional[Dict]:
-    try:
-        action = evt.args[0]
-        if action not in ("whitelist", "blacklist", "add", "remove"):
-            raise ValueError()
-
-        id_str = evt.args[1]
-        if id_str.startswith("-100"):
-            id = int(id_str[4:])
-        elif id_str.startswith("-"):
-            id = int(id_str[1:])
-        else:
-            id = int(id_str)
-    except (IndexError, ValueError):
-        return await evt.reply("**Usage:** `$cmdprefix+sp filter <whitelist/blacklist> <chat ID>`")
-
-    mode = evt.config["bridge.filter.mode"]
-    if mode not in ("blacklist", "whitelist"):
-        return await evt.reply(f"Unknown filter mode \"{mode}\". Please fix the bridge config.")
-
-    list = evt.config["bridge.filter.list"]
-
-    if action in ("blacklist", "whitelist"):
-        action = "add" if mode == action else "remove"
-
-    def save() -> None:
-        evt.config["bridge.filter.list"] = list
-        evt.config.save()
-        po.Portal.filter_list = list
-
-    if action == "add":
-        if id in list:
-            return await evt.reply(f"That chat is already {mode}ed.")
-        list.append(id)
-        save()
-        return await evt.reply(f"Chat ID added to {mode}.")
-    elif action == "remove":
-        if id not in list:
-            return await evt.reply(f"That chat is not {mode}ed.")
-        list.remove(id)
-        save()
-        return await evt.reply(f"Chat ID removed from {mode}.")
-    return None
diff --git a/mautrix_telegram/commands/portal/__init__.py b/mautrix_telegram/commands/portal/__init__.py
new file mode 100644
index 00000000..4856d98a
--- /dev/null
+++ b/mautrix_telegram/commands/portal/__init__.py
@@ -0,0 +1 @@
+from . import admin, bridge, config, create_chat, filter, misc, unbridge
diff --git a/mautrix_telegram/commands/portal/admin.py b/mautrix_telegram/commands/portal/admin.py
new file mode 100644
index 00000000..2a2e22c0
--- /dev/null
+++ b/mautrix_telegram/commands/portal/admin.py
@@ -0,0 +1,101 @@
+# -*- coding: future_fstrings -*-
+# mautrix-telegram - A Matrix-Telegram puppeting bridge
+# Copyright (C) 2018 Tulir Asokan
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+from typing import Dict
+import asyncio
+
+from mautrix_appservice import MatrixRequestError
+
+from ... import portal as po, puppet as pu, user as u
+from .. import command_handler, CommandEvent, SECTION_ADMIN
+
+
+@command_handler(needs_admin=True, needs_auth=False, name="set-pl",
+                 help_section=SECTION_ADMIN,
+                 help_args="<_level_> [_mxid_]",
+                 help_text="Set a temporary power level without affecting Telegram.")
+async def set_power_level(evt: CommandEvent) -> Dict:
+    try:
+        level = int(evt.args[0])
+    except KeyError:
+        return await evt.reply("**Usage:** `$cmdprefix+sp set-pl <level> [mxid]`")
+    except ValueError:
+        return await evt.reply("The level must be an integer.")
+    levels = await evt.az.intent.get_power_levels(evt.room_id)
+    mxid = evt.args[1] if len(evt.args) > 1 else evt.sender.mxid
+    levels["users"][mxid] = level
+    try:
+        await evt.az.intent.set_power_levels(evt.room_id, levels)
+    except MatrixRequestError:
+        evt.log.exception("Failed to set power level.")
+        return await evt.reply("Failed to set power level.")
+    return {}
+
+
+@command_handler(needs_admin=True, needs_auth=False,
+                 help_section=SECTION_ADMIN,
+                 help_args="<portal|puppet|user>",
+                 help_text="Clear internal bridge caches")
+async def clear_db_cache(evt: CommandEvent) -> Dict:
+    try:
+        section = evt.args[0].lower()
+    except KeyError:
+        return await evt.reply("**Usage:** `$cmdprefix+sp clear-db-cache <section>`")
+    if section == "portal":
+        po.Portal.by_tgid = {}
+        po.Portal.by_mxid = {}
+        await evt.reply("Cleared portal cache")
+    elif section == "puppet":
+        pu.Puppet.cache = {}
+        for puppet in pu.Puppet.by_custom_mxid.values():
+            puppet.sync_task.cancel()
+        pu.Puppet.by_custom_mxid = {}
+        await asyncio.gather(
+            *[puppet.init_custom_mxid() for puppet in pu.Puppet.all_with_custom_mxid()],
+            loop=evt.loop)
+        await evt.reply("Cleared puppet cache and restarted custom puppet syncers")
+    elif section == "user":
+        u.User.by_mxid = {
+            user.mxid: user
+            for user in u.User.by_tgid.values()
+        }
+        await evt.reply("Cleared non-logged-in user cache")
+    else:
+        return await evt.reply("**Usage:** `$cmdprefix+sp clear-db-cache <section>`")
+
+
+@command_handler(needs_admin=True, needs_auth=False,
+                 help_section=SECTION_ADMIN,
+                 help_args="[user]",
+                 help_text="Reload and reconnect a user")
+async def reload_user(evt: CommandEvent) -> Dict:
+    if len(evt.args) > 0:
+        mxid = evt.args[0]
+    else:
+        mxid = evt.sender.mxid
+    user = u.User.get_by_mxid(mxid, create=False)
+    if not user:
+        return await evt.reply("User not found")
+    puppet = pu.Puppet.get_by_custom_mxid(mxid)
+    if puppet:
+        puppet.sync_task.cancel()
+    await user.stop()
+    user.delete(delete_db=False)
+    user = u.User.get_by_mxid(mxid)
+    await user.ensure_started()
+    if puppet:
+        await puppet.init_custom_mxid()
+    await evt.reply(f"Reloaded and reconnected {user.mxid} (telegram: {user.human_tg_id})")
diff --git a/mautrix_telegram/commands/portal/bridge.py b/mautrix_telegram/commands/portal/bridge.py
new file mode 100644
index 00000000..cb6c9b7f
--- /dev/null
+++ b/mautrix_telegram/commands/portal/bridge.py
@@ -0,0 +1,181 @@
+# -*- coding: future_fstrings -*-
+# mautrix-telegram - A Matrix-Telegram puppeting bridge
+# Copyright (C) 2018 Tulir Asokan
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+from typing import Dict, Optional, Tuple, Coroutine
+import asyncio
+
+from telethon.tl.types import ChatForbidden, ChannelForbidden
+
+from ...types import MatrixRoomID, TelegramID
+from ...util import ignore_coro
+from ... import portal as po
+from .. import command_handler, CommandEvent, SECTION_CREATING_PORTALS
+from .util import user_has_power_level, get_initial_state
+
+
+@command_handler(needs_auth=False, needs_puppeting=False,
+                 help_section=SECTION_CREATING_PORTALS,
+                 help_args="[_id_]",
+                 help_text="Bridge the current Matrix room to the Telegram chat with the given "
+                           "ID. The ID must be the prefixed version that you get with the `/id` "
+                           "command of the Telegram-side bot.")
+async def bridge(evt: CommandEvent) -> Dict:
+    if len(evt.args) == 0:
+        return await evt.reply("**Usage:** "
+                               "`$cmdprefix+sp bridge <Telegram chat ID> [Matrix room ID]`")
+    room_id = MatrixRoomID(evt.args[1]) if len(evt.args) > 1 else evt.room_id
+    that_this = "This" if room_id == evt.room_id else "That"
+
+    portal = po.Portal.get_by_mxid(room_id)
+    if portal:
+        return await evt.reply(f"{that_this} room is already a portal room.")
+
+    if not await user_has_power_level(room_id, evt.az.intent, evt.sender, "bridge"):
+        return await evt.reply(f"You do not have the permissions to bridge {that_this} room.")
+
+    # The /id bot command provides the prefixed ID, so we assume
+    tgid_str = evt.args[0]
+    if tgid_str.startswith("-100"):
+        tgid = TelegramID(int(tgid_str[4:]))
+        peer_type = "channel"
+    elif tgid_str.startswith("-"):
+        tgid = TelegramID(-int(tgid_str))
+        peer_type = "chat"
+    else:
+        return await evt.reply("That doesn't seem like a prefixed Telegram chat ID.\n\n"
+                               "If you did not get the ID using the `/id` bot command, please "
+                               "prefix channel IDs with `-100` and normal group IDs with `-`.\n\n"
+                               "Bridging private chats to existing rooms is not allowed.")
+
+    portal = po.Portal.get_by_tgid(tgid, peer_type=peer_type)
+    if not portal.allow_bridging():
+        return await evt.reply("This bridge doesn't allow bridging that Telegram chat.\n"
+                               "If you're the bridge admin, try "
+                               "`$cmdprefix+sp filter whitelist <Telegram chat ID>` first.")
+    if portal.mxid:
+        has_portal_message = (
+            "That Telegram chat already has a portal at "
+            f"[{portal.alias or portal.mxid}](https://matrix.to/#/{portal.mxid}). ")
+        if not await user_has_power_level(portal.mxid, evt.az.intent, evt.sender, "unbridge"):
+            return await evt.reply(f"{has_portal_message}"
+                                   "Additionally, you do not have the permissions to unbridge "
+                                   "that room.")
+        evt.sender.command_status = {
+            "next": confirm_bridge,
+            "action": "Room bridging",
+            "mxid": portal.mxid,
+            "bridge_to_mxid": room_id,
+            "tgid": portal.tgid,
+            "peer_type": portal.peer_type,
+        }
+        return await evt.reply(f"{has_portal_message}"
+                               "However, you have the permissions to unbridge that room.\n\n"
+                               "To delete that portal completely and continue bridging, use "
+                               "`$cmdprefix+sp delete-and-continue`. To unbridge the portal "
+                               "without kicking Matrix users, use `$cmdprefix+sp unbridge-and-"
+                               "continue`. To cancel, use `$cmdprefix+sp cancel`")
+    evt.sender.command_status = {
+        "next": confirm_bridge,
+        "action": "Room bridging",
+        "bridge_to_mxid": room_id,
+        "tgid": portal.tgid,
+        "peer_type": portal.peer_type,
+    }
+    return await evt.reply("That Telegram chat has no existing portal. To confirm bridging the "
+                           "chat to this room, use `$cmdprefix+sp continue`")
+
+
+async def cleanup_old_portal_while_bridging(evt: CommandEvent, portal: "po.Portal"
+                                            ) -> Tuple[bool, Optional[Coroutine[None, None, None]]]:
+    if not portal.mxid:
+        await evt.reply("The portal seems to have lost its Matrix room between you"
+                        "calling `$cmdprefix+sp bridge` and this command.\n\n"
+                        "Continuing without touching previous Matrix room...")
+        return True, None
+    elif evt.args[0] == "delete-and-continue":
+        return True, portal.cleanup_room(portal.main_intent, portal.mxid,
+                                         message="Portal deleted (moving to another room)")
+    elif evt.args[0] == "unbridge-and-continue":
+        return True, portal.cleanup_room(portal.main_intent, portal.mxid,
+                                         message="Room unbridged (portal moving to another room)",
+                                         puppets_only=True)
+    else:
+        await evt.reply(
+            "The chat you were trying to bridge already has a Matrix portal room.\n\n"
+            "Please use `$cmdprefix+sp delete-and-continue` or `$cmdprefix+sp unbridge-and-"
+            "continue` to either delete or unbridge the existing room (respectively) and "
+            "continue with the bridging.\n\n"
+            "If you changed your mind, use `$cmdprefix+sp cancel` to cancel.")
+        return False, None
+
+
+async def confirm_bridge(evt: CommandEvent) -> Optional[Dict]:
+    status = evt.sender.command_status
+    try:
+        portal = po.Portal.get_by_tgid(status["tgid"], peer_type=status["peer_type"])
+        bridge_to_mxid = status["bridge_to_mxid"]
+    except KeyError:
+        evt.sender.command_status = None
+        return await evt.reply("Fatal error: tgid or peer_type missing from command_status. "
+                               "This shouldn't happen unless you're messing with the command "
+                               "handler code.")
+    if "mxid" in status:
+        ok, coro = await cleanup_old_portal_while_bridging(evt, portal)
+        if not ok:
+            return None
+        elif coro:
+            ignore_coro(asyncio.ensure_future(coro, loop=evt.loop))
+            await evt.reply("Cleaning up previous portal room...")
+    elif portal.mxid:
+        evt.sender.command_status = None
+        return await evt.reply("The portal seems to have created a Matrix room between you "
+                               "calling `$cmdprefix+sp bridge` and this command.\n\n"
+                               "Please start over by calling the bridge command again.")
+    elif evt.args[0] != "continue":
+        return await evt.reply("Please use `$cmdprefix+sp continue` to confirm the bridging or "
+                               "`$cmdprefix+sp cancel` to cancel.")
+
+    evt.sender.command_status = None
+    is_logged_in = await evt.sender.is_logged_in()
+    user = evt.sender if is_logged_in else evt.tgbot
+    try:
+        entity = await user.client.get_entity(portal.peer)
+    except Exception:
+        evt.log.exception("Failed to get_entity(%s) for manual bridging.", portal.peer)
+        if is_logged_in:
+            return await evt.reply("Failed to get info of telegram chat. "
+                                   "You are logged in, are you in that chat?")
+        else:
+            return await evt.reply("Failed to get info of telegram chat. "
+                                   "You're not logged in, is the relay bot in the chat?")
+    if isinstance(entity, (ChatForbidden, ChannelForbidden)):
+        if is_logged_in:
+            return await evt.reply("You don't seem to be in that chat.")
+        else:
+            return await evt.reply("The bot doesn't seem to be in that chat.")
+
+    direct = False
+
+    portal.mxid = bridge_to_mxid
+    portal.title, portal.about, levels = await get_initial_state(evt.az.intent, evt.room_id)
+    portal.photo_id = ""
+    portal.save()
+
+    ignore_coro(asyncio.ensure_future(portal.update_matrix_room(user, entity, direct,
+                                                                levels=levels),
+                                      loop=evt.loop))
+
+    return await evt.reply("Bridging complete. Portal synchronization should begin momentarily.")
diff --git a/mautrix_telegram/commands/portal/config.py b/mautrix_telegram/commands/portal/config.py
new file mode 100644
index 00000000..2bec621e
--- /dev/null
+++ b/mautrix_telegram/commands/portal/config.py
@@ -0,0 +1,132 @@
+# -*- coding: future_fstrings -*-
+# mautrix-telegram - A Matrix-Telegram puppeting bridge
+# Copyright (C) 2018 Tulir Asokan
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+from typing import Dict, Awaitable
+from io import StringIO
+
+from ...config import yaml
+from ... import portal as po, user as u, util
+from .. import command_handler, CommandEvent, SECTION_PORTAL_MANAGEMENT
+
+@command_handler(help_section=SECTION_PORTAL_MANAGEMENT,
+                 help_text="View or change per-portal settings.",
+                 help_args="<`help`|_subcommand_> [...]")
+async def config(evt: CommandEvent) -> None:
+    cmd = evt.args[0].lower() if len(evt.args) > 0 else "help"
+    if cmd not in ("view", "defaults", "set", "unset", "add", "del"):
+        await config_help(evt)
+        return
+    elif cmd == "defaults":
+        await config_defaults(evt)
+        return
+
+    portal = po.Portal.get_by_mxid(evt.room_id)
+    if not portal:
+        await evt.reply("This is not a portal room.")
+        return
+    elif cmd == "view":
+        await config_view(evt, portal)
+        return
+
+    key = evt.args[1] if len(evt.args) > 1 else None
+    value = yaml.load(" ".join(evt.args[2:])) if len(evt.args) > 2 else None
+    if cmd == "set":
+        await config_set(evt, portal, key, value)
+    elif cmd == "unset":
+        await config_unset(evt, portal, key)
+    elif cmd == "add" or cmd == "del":
+        await config_add_del(evt, portal, key, value, cmd)
+    else:
+        return
+    portal.save()
+
+
+def config_help(evt: CommandEvent) -> Awaitable[Dict]:
+    return evt.reply("""**Usage:** `$cmdprefix config <subcommand> [...]`. Subcommands:
+
+* **help** - View this help text.
+* **view** - View the current config data.
+* **defaults** - View the default config values.
+* **set** <_key_> <_value_> - Set a config value.
+* **unset** <_key_> - Remove a config value.
+* **add** <_key_> <_value_> - Add a value to an array.
+* **del** <_key_> <_value_> - Remove a value from an array.
+""")
+
+
+def config_view(evt: CommandEvent, portal: po.Portal) -> Awaitable[Dict]:
+    stream = StringIO()
+    yaml.dump(portal.local_config, stream)
+    return evt.reply(f"Room-specific config:\n\n```yaml\n{stream.getvalue()}```")
+
+
+def config_defaults(evt: CommandEvent) -> Awaitable[Dict]:
+    stream = StringIO()
+    yaml.dump({
+        "edits_as_replies": evt.config["bridge.edits_as_replies"],
+        "bridge_notices": {
+            "default": evt.config["bridge.bridge_notices.default"],
+            "exceptions": evt.config["bridge.bridge_notices.exceptions"],
+        },
+        "bot_messages_as_notices": evt.config["bridge.bot_messages_as_notices"],
+        "inline_images": evt.config["bridge.inline_images"],
+        "message_formats": evt.config["bridge.message_formats"],
+        "state_event_formats": evt.config["bridge.state_event_formats"],
+        "telegram_link_preview": evt.config["bridge.telegram_link_preview"],
+    }, stream)
+    return evt.reply(f"Bridge instance wide config:\n\n```yaml\n{stream.getvalue()}```")
+
+
+def config_set(evt: CommandEvent, portal: po.Portal, key: str, value: str) -> Awaitable[Dict]:
+    if not key or value is None:
+        return evt.reply(f"**Usage:** `$cmdprefix+sp config set <key> <value>`")
+    elif util.recursive_set(portal.local_config, key, value):
+        return evt.reply(f"Successfully set the value of `{key}` to `{value}`.")
+    else:
+        return evt.reply(f"Failed to set value of `{key}`. "
+                         "Does the path contain non-map types?")
+
+
+def config_unset(evt: CommandEvent, portal: po.Portal, key: str) -> Awaitable[Dict]:
+    if not key:
+        return evt.reply(f"**Usage:** `$cmdprefix+sp config unset <key>`")
+    elif util.recursive_del(portal.local_config, key):
+        return evt.reply(f"Successfully deleted `{key}` from config.")
+    else:
+        return evt.reply(f"`{key}` not found in config.")
+
+
+def config_add_del(evt: CommandEvent, portal: po.Portal, key: str, value: str, cmd: str
+                   ) -> Awaitable[Dict]:
+    if not key or value is None:
+        return evt.reply(f"**Usage:** `$cmdprefix+sp config {cmd} <key> <value>`")
+
+    arr = util.recursive_get(portal.local_config, key)
+    if not arr:
+        return evt.reply(f"`{key}` not found in config. "
+                         f"Maybe do `$cmdprefix+sp config set {key} []` first?")
+    elif not isinstance(arr, list):
+        return evt.reply("`{key}` does not seem to be an array.")
+    elif cmd == "add":
+        if value in arr:
+            return evt.reply(f"The array at `{key}` already contains `{value}`.")
+        arr.append(value)
+        return evt.reply(f"Successfully added `{value}` to the array at `{key}`")
+    else:
+        if value not in arr:
+            return evt.reply(f"The array at `{key}` does not contain `{value}`.")
+        arr.remove(value)
+        return evt.reply(f"Successfully removed `{value}` from the array at `{key}`")
diff --git a/mautrix_telegram/commands/portal/create_chat.py b/mautrix_telegram/commands/portal/create_chat.py
new file mode 100644
index 00000000..98262591
--- /dev/null
+++ b/mautrix_telegram/commands/portal/create_chat.py
@@ -0,0 +1,59 @@
+# -*- coding: future_fstrings -*-
+# mautrix-telegram - A Matrix-Telegram puppeting bridge
+# Copyright (C) 2018 Tulir Asokan
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+from typing import Dict
+
+from ... import portal as po
+from .. import command_handler, CommandEvent, SECTION_CREATING_PORTALS
+from .util import user_has_power_level, get_initial_state
+
+
+@command_handler(help_section=SECTION_CREATING_PORTALS,
+                 help_args="[_type_]",
+                 help_text="Create a Telegram chat of the given type for the current Matrix room. "
+                           "The type is either `group`, `supergroup` or `channel` (defaults to "
+                           "`group`).")
+async def create(evt: CommandEvent) -> Dict:
+    type = evt.args[0] if len(evt.args) > 0 else "group"
+    if type not in {"chat", "group", "supergroup", "channel"}:
+        return await evt.reply(
+            "**Usage:** `$cmdprefix+sp create ['group'/'supergroup'/'channel']`")
+
+    if po.Portal.get_by_mxid(evt.room_id):
+        return await evt.reply("This is already a portal room.")
+
+    if not await user_has_power_level(evt.room_id, evt.az.intent, evt.sender, "bridge"):
+        return await evt.reply("You do not have the permissions to bridge this room.")
+
+    title, about, levels = await get_initial_state(evt.az.intent, evt.room_id)
+    if not title:
+        return await evt.reply("Please set a title before creating a Telegram chat.")
+
+    supergroup = type == "supergroup"
+    type = {
+        "supergroup": "channel",
+        "channel": "channel",
+        "chat": "chat",
+        "group": "chat",
+    }[type]
+
+    portal = po.Portal(tgid=None, mxid=evt.room_id, title=title, about=about, peer_type=type)
+    try:
+        await portal.create_telegram_chat(evt.sender, supergroup=supergroup)
+    except ValueError as e:
+        portal.delete()
+        return await evt.reply(e.args[0])
+    return await evt.reply(f"Telegram chat created. ID: {portal.tgid}")
diff --git a/mautrix_telegram/commands/portal/filter.py b/mautrix_telegram/commands/portal/filter.py
new file mode 100644
index 00000000..5df42f5d
--- /dev/null
+++ b/mautrix_telegram/commands/portal/filter.py
@@ -0,0 +1,95 @@
+# -*- coding: future_fstrings -*-
+# mautrix-telegram - A Matrix-Telegram puppeting bridge
+# Copyright (C) 2018 Tulir Asokan
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+from typing import Dict, Optional
+
+from ... import portal as po
+from .. import command_handler, CommandEvent, SECTION_ADMIN
+
+
+@command_handler(needs_admin=True,
+                 help_section=SECTION_ADMIN,
+                 help_args="<`whitelist`|`blacklist`>",
+                 help_text="Change whether the bridge will allow or disallow bridging rooms by "
+                           "default.")
+async def filter_mode(evt: CommandEvent) -> Dict:
+    try:
+        mode = evt.args[0]
+        if mode not in ("whitelist", "blacklist"):
+            raise ValueError()
+    except (IndexError, ValueError):
+        return await evt.reply("**Usage:** `$cmdprefix+sp filter-mode <whitelist/blacklist>`")
+
+    evt.config["bridge.filter.mode"] = mode
+    evt.config.save()
+    po.Portal.filter_mode = mode
+    if mode == "whitelist":
+        return await evt.reply("The bridge will now disallow bridging chats by default.\n"
+                               "To allow bridging a specific chat, use"
+                               "`!filter whitelist <chat ID>`.")
+    else:
+        return await evt.reply("The bridge will now allow bridging chats by default.\n"
+                               "To disallow bridging a specific chat, use"
+                               "`!filter blacklist <chat ID>`.")
+
+
+@command_handler(needs_admin=True,
+                 help_section=SECTION_ADMIN,
+                 help_args="<`whitelist`|`blacklist`> <_chat ID_>",
+                 help_text="Allow or disallow bridging a specific chat.")
+async def filter(evt: CommandEvent) -> Optional[Dict]:
+    try:
+        action = evt.args[0]
+        if action not in ("whitelist", "blacklist", "add", "remove"):
+            raise ValueError()
+
+        id_str = evt.args[1]
+        if id_str.startswith("-100"):
+            id = int(id_str[4:])
+        elif id_str.startswith("-"):
+            id = int(id_str[1:])
+        else:
+            id = int(id_str)
+    except (IndexError, ValueError):
+        return await evt.reply("**Usage:** `$cmdprefix+sp filter <whitelist/blacklist> <chat ID>`")
+
+    mode = evt.config["bridge.filter.mode"]
+    if mode not in ("blacklist", "whitelist"):
+        return await evt.reply(f"Unknown filter mode \"{mode}\". Please fix the bridge config.")
+
+    list = evt.config["bridge.filter.list"]
+
+    if action in ("blacklist", "whitelist"):
+        action = "add" if mode == action else "remove"
+
+    def save() -> None:
+        evt.config["bridge.filter.list"] = list
+        evt.config.save()
+        po.Portal.filter_list = list
+
+    if action == "add":
+        if id in list:
+            return await evt.reply(f"That chat is already {mode}ed.")
+        list.append(id)
+        save()
+        return await evt.reply(f"Chat ID added to {mode}.")
+    elif action == "remove":
+        if id not in list:
+            return await evt.reply(f"That chat is not {mode}ed.")
+        list.remove(id)
+        save()
+        return await evt.reply(f"Chat ID removed from {mode}.")
+    return None
diff --git a/mautrix_telegram/commands/portal/misc.py b/mautrix_telegram/commands/portal/misc.py
new file mode 100644
index 00000000..a5617848
--- /dev/null
+++ b/mautrix_telegram/commands/portal/misc.py
@@ -0,0 +1,127 @@
+# -*- coding: future_fstrings -*-
+# mautrix-telegram - A Matrix-Telegram puppeting bridge
+# Copyright (C) 2018 Tulir Asokan
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+from typing import Dict
+
+from telethon.errors import (ChatAdminRequiredError, UsernameInvalidError,
+                             UsernameNotModifiedError, UsernameOccupiedError)
+
+from ... import portal as po
+from .. import command_handler, CommandEvent, SECTION_PORTAL_MANAGEMENT, SECTION_MISC
+from .util import user_has_power_level
+
+
+@command_handler(needs_admin=False, needs_puppeting=False, needs_auth=False,
+                 help_section=SECTION_MISC,
+                 help_text="Fetch Matrix room state to ensure the bridge has up-to-date info.")
+async def sync_state(evt: CommandEvent) -> Dict:
+    portal = po.Portal.get_by_mxid(evt.room_id)
+    if not portal:
+        return await evt.reply("This is not a portal room.")
+    elif not await user_has_power_level(evt.room_id, evt.az.intent, evt.sender, "bridge"):
+        return await evt.reply(f"You do not have the permissions to synchronize this room.")
+
+    await portal.sync_matrix_members()
+    await evt.reply("Synchronization complete")
+
+
+@command_handler(needs_admin=False, needs_puppeting=False, needs_auth=False,
+                 help_section=SECTION_MISC,
+                 help_text="Get the ID of the Telegram chat where this room is bridged.")
+async def id(evt: CommandEvent) -> Dict:
+    portal = po.Portal.get_by_mxid(evt.room_id)
+    if not portal:
+        return await evt.reply("This is not a portal room.")
+    tgid = portal.tgid
+    if portal.peer_type == "chat":
+        tgid = -tgid
+    elif portal.peer_type == "channel":
+        tgid = f"-100{tgid}"
+    await evt.reply(f"This room is bridged to Telegram chat ID `{tgid}`.")
+
+
+@command_handler(help_section=SECTION_PORTAL_MANAGEMENT,
+                 help_text="Get a Telegram invite link to the current chat.")
+async def invite_link(evt: CommandEvent) -> Dict:
+    portal = po.Portal.get_by_mxid(evt.room_id)
+    if not portal:
+        return await evt.reply("This is not a portal room.")
+
+    if portal.peer_type == "user":
+        return await evt.reply("You can't invite users to private chats.")
+
+    try:
+        link = await portal.get_invite_link(evt.sender)
+        return await evt.reply(f"Invite link to {portal.title}: {link}")
+    except ValueError as e:
+        return await evt.reply(e.args[0])
+    except ChatAdminRequiredError:
+        return await evt.reply("You don't have the permission to create an invite link.")
+
+
+@command_handler(help_section=SECTION_PORTAL_MANAGEMENT,
+                 help_text="Upgrade a normal Telegram group to a supergroup.")
+async def upgrade(evt: CommandEvent) -> Dict:
+    portal = po.Portal.get_by_mxid(evt.room_id)
+    if not portal:
+        return await evt.reply("This is not a portal room.")
+    elif portal.peer_type == "channel":
+        return await evt.reply("This is already a supergroup or a channel.")
+    elif portal.peer_type == "user":
+        return await evt.reply("You can't upgrade private chats.")
+
+    try:
+        await portal.upgrade_telegram_chat(evt.sender)
+        return await evt.reply(f"Group upgraded to supergroup. New ID: -100{portal.tgid}")
+    except ChatAdminRequiredError:
+        return await evt.reply("You don't have the permission to upgrade this group.")
+    except ValueError as e:
+        return await evt.reply(e.args[0])
+
+
+@command_handler(help_section=SECTION_PORTAL_MANAGEMENT,
+                 help_args="<_name_|`-`>",
+                 help_text="Change the username of a supergroup/channel. "
+                           "To disable, use a dash (`-`) as the name.")
+async def group_name(evt: CommandEvent) -> Dict:
+    if len(evt.args) == 0:
+        return await evt.reply("**Usage:** `$cmdprefix+sp group-name <name/->`")
+
+    portal = po.Portal.get_by_mxid(evt.room_id)
+    if not portal:
+        return await evt.reply("This is not a portal room.")
+    elif portal.peer_type != "channel":
+        return await evt.reply("Only channels and supergroups have usernames.")
+
+    try:
+        await portal.set_telegram_username(evt.sender,
+                                           evt.args[0] if evt.args[0] != "-" else "")
+        if portal.username:
+            return await evt.reply(f"Username of channel changed to {portal.username}.")
+        else:
+            return await evt.reply(f"Channel is now private.")
+    except ChatAdminRequiredError:
+        return await evt.reply(
+            "You don't have the permission to set the username of this channel.")
+    except UsernameNotModifiedError:
+        if portal.username:
+            return await evt.reply("That is already the username of this channel.")
+        else:
+            return await evt.reply("This channel is already private")
+    except UsernameOccupiedError:
+        return await evt.reply("That username is already in use.")
+    except UsernameInvalidError:
+        return await evt.reply("Invalid username")
diff --git a/mautrix_telegram/commands/portal/unbridge.py b/mautrix_telegram/commands/portal/unbridge.py
new file mode 100644
index 00000000..95ff90ea
--- /dev/null
+++ b/mautrix_telegram/commands/portal/unbridge.py
@@ -0,0 +1,97 @@
+# -*- coding: future_fstrings -*-
+# mautrix-telegram - A Matrix-Telegram puppeting bridge
+# Copyright (C) 2018 Tulir Asokan
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+from typing import Dict, Callable, Optional
+
+from ...types import MatrixRoomID
+from ... import portal as po
+from .. import command_handler, CommandEvent, SECTION_PORTAL_MANAGEMENT
+from .util import user_has_power_level, get_initial_state
+
+
+async def _get_portal_and_check_permission(evt: CommandEvent, permission: str,
+                                           action: Optional[str] = None
+                                           ) -> Optional[po.Portal]:
+    room_id = MatrixRoomID(evt.args[0]) if len(evt.args) > 0 else evt.room_id
+
+    portal = po.Portal.get_by_mxid(room_id)
+    if not portal:
+        that_this = "This" if room_id == evt.room_id else "That"
+        await evt.reply(f"{that_this} is not a portal room.")
+        return None
+
+    if not await user_has_power_level(portal.mxid, evt.az.intent, evt.sender, permission):
+        action = action or f"{permission.replace('_', ' ')}s"
+        await evt.reply(f"You do not have the permissions to {action} that portal.")
+        return None
+    return portal
+
+
+def _get_portal_murder_function(action: str, room_id: str, function: Callable, command: str,
+                                completed_message: str) -> Dict:
+    async def post_confirm(confirm) -> Optional[Dict]:
+        confirm.sender.command_status = None
+        if len(confirm.args) > 0 and confirm.args[0] == f"confirm-{command}":
+            await function()
+            if confirm.room_id != room_id:
+                return await confirm.reply(completed_message)
+        else:
+            return await confirm.reply(f"{action} cancelled.")
+        return None
+
+    return {
+        "next": post_confirm,
+        "action": action,
+    }
+
+
+@command_handler(needs_auth=False, needs_puppeting=False,
+                 help_section=SECTION_PORTAL_MANAGEMENT,
+                 help_text="Remove all users from the current portal room and forget the portal. "
+                           "Only works for group chats; to delete a private chat portal, simply "
+                           "leave the room.")
+async def delete_portal(evt: CommandEvent) -> Optional[Dict]:
+    portal = await _get_portal_and_check_permission(evt, "unbridge")
+    if not portal:
+        return None
+
+    evt.sender.command_status = _get_portal_murder_function("Portal deletion", portal.mxid,
+                                                            portal.cleanup_and_delete, "delete",
+                                                            "Portal successfully deleted.")
+    return await evt.reply("Please confirm deletion of portal "
+                           f"[{portal.alias or portal.mxid}](https://matrix.to/#/{portal.mxid}) "
+                           f"to Telegram chat \"{portal.title}\" "
+                           "by typing `$cmdprefix+sp confirm-delete`"
+                           "\n\n"
+                           "**WARNING:** If the bridge bot has the power level to do so, **this "
+                           "will kick ALL users** in the room. If you just want to remove the "
+                           "bridge, use `$cmdprefix+sp unbridge` instead.")
+
+
+@command_handler(needs_auth=False, needs_puppeting=False,
+                 help_section=SECTION_PORTAL_MANAGEMENT,
+                 help_text="Remove puppets from the current portal room and forget the portal.")
+async def unbridge(evt: CommandEvent) -> Optional[Dict]:
+    portal = await _get_portal_and_check_permission(evt, "unbridge")
+    if not portal:
+        return None
+
+    evt.sender.command_status = _get_portal_murder_function("Room unbridging", portal.mxid,
+                                                            portal.unbridge, "unbridge",
+                                                            "Room successfully unbridged.")
+    return await evt.reply(f"Please confirm unbridging chat \"{portal.title}\" from room "
+                           f"[{portal.alias or portal.mxid}](https://matrix.to/#/{portal.mxid}) "
+                           "by typing `$cmdprefix+sp confirm-unbridge`")
diff --git a/mautrix_telegram/commands/portal/util.py b/mautrix_telegram/commands/portal/util.py
new file mode 100644
index 00000000..4846db5c
--- /dev/null
+++ b/mautrix_telegram/commands/portal/util.py
@@ -0,0 +1,40 @@
+from typing import Dict, Tuple
+
+from mautrix_appservice import MatrixRequestError, IntentAPI
+
+from ... import user as u
+
+
+async def get_initial_state(intent: IntentAPI, room_id: str) -> Tuple[str, str, Dict]:
+    state = await intent.get_room_state(room_id)
+    title = None
+    about = None
+    levels = None
+    for event in state:
+        try:
+            if event["type"] == "m.room.name":
+                title = event["content"]["name"]
+            elif event["type"] == "m.room.topic":
+                about = event["content"]["topic"]
+            elif event["type"] == "m.room.power_levels":
+                levels = event["content"]
+            elif event["type"] == "m.room.canonical_alias":
+                title = title or event["content"]["alias"]
+        except KeyError:
+            # Some state event probably has empty content
+            pass
+    return title, about, levels
+
+
+async def user_has_power_level(room: str, intent, sender: u.User, event: str, default: int = 50
+                               ) -> bool:
+    if sender.is_admin:
+        return True
+    # Make sure the state store contains the power levels.
+    try:
+        await intent.get_power_levels(room)
+    except MatrixRequestError:
+        return False
+    return intent.state_store.has_power_level(room, sender.mxid,
+                                              event=f"net.maunium.telegram.{event}",
+                                              default=default)
diff --git a/mautrix_telegram/commands/telegram/__init__.py b/mautrix_telegram/commands/telegram/__init__.py
new file mode 100644
index 00000000..1eb1e199
--- /dev/null
+++ b/mautrix_telegram/commands/telegram/__init__.py
@@ -0,0 +1 @@
+from . import account, auth, misc
diff --git a/mautrix_telegram/commands/telegram/account.py b/mautrix_telegram/commands/telegram/account.py
new file mode 100644
index 00000000..5d273729
--- /dev/null
+++ b/mautrix_telegram/commands/telegram/account.py
@@ -0,0 +1,49 @@
+# -*- coding: future_fstrings -*-
+# mautrix-telegram - A Matrix-Telegram puppeting bridge
+# Copyright (C) 2018 Tulir Asokan
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+from typing import Dict, Optional
+
+from telethon.errors import UsernameInvalidError, UsernameNotModifiedError, UsernameOccupiedError
+from telethon.tl.functions.account import UpdateUsernameRequest
+
+from mautrix_telegram.commands import command_handler, CommandEvent, SECTION_AUTH
+
+
+@command_handler(needs_auth=True,
+                 help_section=SECTION_AUTH,
+                 help_text="Change your Telegram username")
+async def username(evt: CommandEvent) -> Optional[Dict]:
+    if len(evt.args) == 0:
+        return await evt.reply("**Usage:** `$cmdprefix+sp username <new username>`")
+    if evt.sender.is_bot:
+        return await evt.reply("Bots can't set their own username.")
+    new_name = evt.args[0]
+    if new_name == "-":
+        new_name = ""
+    try:
+        await evt.sender.client(UpdateUsernameRequest(username=new_name))
+    except UsernameInvalidError:
+        return await evt.reply("Invalid username. Usernames must be between 5 and 30 alphanumeric "
+                               "characters.")
+    except UsernameNotModifiedError:
+        return await evt.reply("That is your current username.")
+    except UsernameOccupiedError:
+        return await evt.reply("That username is already in use.")
+    await evt.sender.update_info()
+    if not evt.sender.username:
+        await evt.reply("Username removed")
+    else:
+        await evt.reply(f"Username changed to {evt.sender.username}")
diff --git a/mautrix_telegram/commands/auth.py b/mautrix_telegram/commands/telegram/auth.py
similarity index 71%
rename from mautrix_telegram/commands/auth.py
rename to mautrix_telegram/commands/telegram/auth.py
index 5b089bfa..02dab059 100644
--- a/mautrix_telegram/commands/auth.py
+++ b/mautrix_telegram/commands/telegram/auth.py
@@ -21,13 +21,11 @@
     AccessTokenExpiredError, AccessTokenInvalidError, FirstNameInvalidError, FloodWaitError,
     PasswordHashInvalidError, PhoneCodeExpiredError, PhoneCodeInvalidError,
     PhoneNumberAppSignupForbiddenError, PhoneNumberBannedError, PhoneNumberFloodError,
-    PhoneNumberOccupiedError, PhoneNumberUnoccupiedError, SessionPasswordNeededError,
-    UsernameInvalidError, UsernameNotModifiedError, UsernameOccupiedError)
-from telethon.tl.functions.account import UpdateUsernameRequest
+    PhoneNumberOccupiedError, PhoneNumberUnoccupiedError, SessionPasswordNeededError)
 
-from . import command_handler, CommandEvent, SECTION_AUTH
-from .. import puppet as pu, user as u
-from ..util import format_duration, ignore_coro
+from mautrix_telegram.commands import command_handler, CommandEvent, SECTION_AUTH
+from mautrix_telegram import puppet as pu, user as u
+from mautrix_telegram.util import format_duration, ignore_coro
 
 
 @command_handler(needs_auth=False,
@@ -56,87 +54,6 @@ async def ping_bot(evt: CommandEvent) -> Optional[Dict]:
                            "To use the bot, simply invite it to a portal room.")
 
 
-@command_handler(needs_auth=True, needs_matrix_puppeting=True,
-                 help_section=SECTION_AUTH,
-                 help_text="Revert your Telegram account's Matrix puppet to use the default Matrix "
-                           "account.")
-async def logout_matrix(evt: CommandEvent) -> Optional[Dict]:
-    puppet = pu.Puppet.get(evt.sender.tgid)
-    if not puppet.is_real_user:
-        return await evt.reply("You are not logged in with your Matrix account.")
-    await puppet.switch_mxid(None, None)
-    return await evt.reply("Reverted your Telegram account's Matrix puppet back to the default.")
-
-
-@command_handler(needs_auth=True, management_only=True, needs_matrix_puppeting=True,
-                 help_section=SECTION_AUTH,
-                 help_text="Replace your Telegram account's Matrix puppet with your own Matrix "
-                           "account")
-async def login_matrix(evt: CommandEvent) -> Optional[Dict]:
-    puppet = pu.Puppet.get(evt.sender.tgid)
-    if puppet.is_real_user:
-        return await evt.reply("You have already logged in with your Matrix account. "
-                               "Log out with `$cmdprefix+sp logout-matrix` first.")
-    allow_matrix_login = evt.config.get("bridge.allow_matrix_login", True)
-    if allow_matrix_login:
-        evt.sender.command_status = {
-            "next": enter_matrix_token,
-            "action": "Matrix login",
-        }
-    if evt.config["appservice.public.enabled"]:
-        prefix = evt.config["appservice.public.external"]
-        token = evt.public_website.make_token(evt.sender.mxid, "/matrix-login")
-        url = f"{prefix}/matrix-login?token={token}"
-        if allow_matrix_login:
-            return await evt.reply(
-                "This bridge instance allows you to log in inside or outside Matrix.\n\n"
-                "If you would like to log in within Matrix, please send your Matrix access token "
-                "here.\n"
-                f"If you would like to log in outside of Matrix, [click here]({url}).\n\n"
-                "Logging in outside of Matrix is recommended, because in-Matrix login would save "
-                "your access token in the message history.")
-        return await evt.reply("This bridge instance does not allow logging in inside Matrix.\n\n"
-                               f"Please visit [the login page]({url}) to log in.")
-    elif allow_matrix_login:
-        return await evt.reply(
-            "This bridge instance does not allow you to log in outside of Matrix.\n\n"
-            "Please send your Matrix access token here to log in.")
-    return await evt.reply("This bridge instance has been configured to not allow logging in.")
-
-
-@command_handler(needs_auth=True, needs_matrix_puppeting=True,
-                 help_section=SECTION_AUTH,
-                 help_text="Pings the server with the stored matrix authentication")
-async def ping_matrix(evt: CommandEvent) -> Optional[Dict]:
-    puppet = pu.Puppet.get(evt.sender.tgid)
-    if not puppet.is_real_user:
-        return await evt.reply("You are not logged in with your Matrix account.")
-    resp = await puppet.init_custom_mxid()
-    if resp == pu.PuppetError.InvalidAccessToken:
-        return await evt.reply("Your access token is invalid.")
-    elif resp == pu.PuppetError.Success:
-        return await evt.reply("Your Matrix login is working.")
-    return await evt.reply(f"Unknown response while checking your Matrix login: {resp}.")
-
-
-async def enter_matrix_token(evt: CommandEvent) -> Dict:
-    evt.sender.command_status = None
-
-    puppet = pu.Puppet.get(evt.sender.tgid)
-    if puppet.is_real_user:
-        return await evt.reply("You have already logged in with your Matrix account. "
-                               "Log out with `$cmdprefix+sp logout-matrix` first.")
-
-    resp = await puppet.switch_mxid(" ".join(evt.args), evt.sender.mxid)
-    if resp == pu.PuppetError.OnlyLoginSelf:
-        return await evt.reply("You can only log in as your own Matrix user.")
-    elif resp == pu.PuppetError.InvalidAccessToken:
-        return await evt.reply("Failed to verify access token.")
-    assert resp == pu.PuppetError.Success, "Encountered an unhandled PuppetError."
-    return await evt.reply(
-        f"Replaced your Telegram account's Matrix puppet with {puppet.custom_mxid}.")
-
-
 @command_handler(needs_auth=False, management_only=True,
                  help_section=SECTION_AUTH,
                  help_args="<_phone_> <_full name_>",
@@ -375,30 +292,3 @@ async def logout(evt: CommandEvent) -> Optional[Dict]:
     if await evt.sender.log_out():
         return await evt.reply("Logged out successfully.")
     return await evt.reply("Failed to log out.")
-
-
-@command_handler(needs_auth=True,
-                 help_section=SECTION_AUTH,
-                 help_text="Change your Telegram username")
-async def username(evt: CommandEvent) -> Optional[Dict]:
-    if len(evt.args) == 0:
-        return await evt.reply("**Usage:** `$cmdprefix+sp username <new username>`")
-    if evt.sender.is_bot:
-        return await evt.reply("Bots can't set their own username.")
-    new_name = evt.args[0]
-    if new_name == "-":
-        new_name = ""
-    try:
-        await evt.sender.client(UpdateUsernameRequest(username=new_name))
-    except UsernameInvalidError:
-        return await evt.reply("Invalid username. Usernames must be between 5 and 30 alphanumeric "
-                               "characters.")
-    except UsernameNotModifiedError:
-        return await evt.reply("That is your current username.")
-    except UsernameOccupiedError:
-        return await evt.reply("That username is already in use.")
-    await evt.sender.update_info()
-    if not evt.sender.username:
-        await evt.reply("Username removed")
-    else:
-        await evt.reply(f"Username changed to {evt.sender.username}")
diff --git a/mautrix_telegram/commands/telegram.py b/mautrix_telegram/commands/telegram/misc.py
similarity index 96%
rename from mautrix_telegram/commands/telegram.py
rename to mautrix_telegram/commands/telegram/misc.py
index 00c5f3f0..01942d17 100644
--- a/mautrix_telegram/commands/telegram.py
+++ b/mautrix_telegram/commands/telegram/misc.py
@@ -27,10 +27,10 @@
                                             GetBotCallbackAnswerRequest)
 from telethon.tl.functions.channels import JoinChannelRequest
 
-from .. import puppet as pu, portal as po
-from ..db import Message as DBMessage
-from ..types import TelegramID
-from . import command_handler, CommandEvent, SECTION_MISC, SECTION_CREATING_PORTALS
+from mautrix_telegram import puppet as pu, portal as po
+from mautrix_telegram.db import Message as DBMessage
+from mautrix_telegram.types import TelegramID
+from mautrix_telegram.commands import command_handler, CommandEvent, SECTION_MISC, SECTION_CREATING_PORTALS
 
 
 @command_handler(help_section=SECTION_MISC,
@@ -71,14 +71,13 @@ async def search(evt: CommandEvent) -> Optional[Dict]:
     return await evt.reply("\n".join(reply))
 
 
-@command_handler(name="pm",
-                 help_section=SECTION_CREATING_PORTALS,
+@command_handler(help_section=SECTION_CREATING_PORTALS,
                  help_args="<_identifier_>",
                  help_text="Open a private chat with the given Telegram user. The identifier is "
                            "either the internal user ID, the username or the phone number. "
                            "**N.B.** The phone numbers you start chats with must already be in "
                            "your contacts.")
-async def private_message(evt: CommandEvent) -> Optional[Dict]:
+async def pm(evt: CommandEvent) -> Optional[Dict]:
     if len(evt.args) == 0:
         return await evt.reply("**Usage:** `$cmdprefix+sp pm <user identifier>`")
 
diff --git a/mautrix_telegram/config.py b/mautrix_telegram/config.py
index c5206121..2c68abcd 100644
--- a/mautrix_telegram/config.py
+++ b/mautrix_telegram/config.py
@@ -209,7 +209,6 @@ def copy_dict(from_path, to_path=None, override_existing_map=True) -> None:
         copy("bridge.inline_images")
         copy("bridge.plaintext_highlights")
         copy("bridge.public_portals")
-        copy("bridge.native_stickers")
         copy("bridge.catch_up")
         copy("bridge.sync_with_custom_puppets")
         copy("bridge.telegram_link_preview")
diff --git a/mautrix_telegram/db/puppet.py b/mautrix_telegram/db/puppet.py
index 3fde9773..4efb90be 100644
--- a/mautrix_telegram/db/puppet.py
+++ b/mautrix_telegram/db/puppet.py
@@ -63,7 +63,7 @@ def get_by_tgid(cls, tgid: TelegramID) -> Optional['Puppet']:
         return cls._select_one_or_none(cls.c.id == tgid)
 
     @classmethod
-    def get_by_custom_mxid(cls, mxid: MatrixRoomID) -> Optional['Puppet']:
+    def get_by_custom_mxid(cls, mxid: MatrixUserID) -> Optional['Puppet']:
         return cls._select_one_or_none(cls.c.custom_mxid == mxid)
 
     @classmethod
diff --git a/mautrix_telegram/db/user.py b/mautrix_telegram/db/user.py
index 5bbf5ff0..1bcd9c36 100644
--- a/mautrix_telegram/db/user.py
+++ b/mautrix_telegram/db/user.py
@@ -53,7 +53,7 @@ def get_by_tgid(cls, tgid: TelegramID) -> Optional['User']:
         return cls._select_one_or_none(cls.c.tgid == tgid)
 
     @classmethod
-    def get_by_mxid(cls, mxid: MatrixRoomID) -> Optional['User']:
+    def get_by_mxid(cls, mxid: MatrixUserID) -> Optional['User']:
         return cls._select_one_or_none(cls.c.mxid == mxid)
 
     @classmethod
@@ -79,8 +79,9 @@ def contacts(self) -> Iterable[TelegramID]:
     @contacts.setter
     def contacts(self, puppets: Iterable[TelegramID]) -> None:
         self.db.execute(Contact.t.delete().where(Contact.c.user == self.tgid))
-        self.db.execute(Contact.t.insert(), [{"user": self.tgid, "contact": tgid}
-                                             for tgid in puppets])
+        if puppets:
+            self.db.execute(Contact.t.insert(), [{"user": self.tgid, "contact": tgid}
+                                                 for tgid in puppets])
 
     @property
     def portals(self) -> Iterable[Tuple[TelegramID, TelegramID]]:
@@ -92,12 +93,18 @@ def portals(self) -> Iterable[Tuple[TelegramID, TelegramID]]:
     @portals.setter
     def portals(self, portals: Iterable[Tuple[TelegramID, TelegramID]]) -> None:
         self.db.execute(UserPortal.t.delete().where(UserPortal.c.user == self.tgid))
-        self.db.execute(UserPortal.t.insert(),
-                        [{
-                            "user": self.tgid,
-                            "portal": tgid,
-                            "portal_receiver": tg_receiver
-                        } for tgid, tg_receiver in portals])
+        if portals:
+            self.db.execute(UserPortal.t.insert(),
+                            [{
+                                "user": self.tgid,
+                                "portal": tgid,
+                                "portal_receiver": tg_receiver
+                            } for tgid, tg_receiver in portals])
+
+    def delete(self) -> None:
+        super().delete()
+        self.portals = None
+        self.contacts = None
 
 
 class UserPortal(Base):
diff --git a/mautrix_telegram/portal.py b/mautrix_telegram/portal.py
index 29606ab1..7d4b05ec 100644
--- a/mautrix_telegram/portal.py
+++ b/mautrix_telegram/portal.py
@@ -1409,7 +1409,7 @@ async def handle_telegram_document(self, source: 'AbstractUser', intent: IntentA
             "external_url": self.get_external_url(evt)
         }
 
-        if attrs["is_sticker"] and self.get_config("native_stickers"):
+        if attrs["is_sticker"]:
             return await intent.send_sticker(**kwargs)
 
         mime_type = info["mimetype"]
diff --git a/mautrix_telegram/puppet.py b/mautrix_telegram/puppet.py
index 4a05345d..e92b3cd9 100644
--- a/mautrix_telegram/puppet.py
+++ b/mautrix_telegram/puppet.py
@@ -30,7 +30,6 @@
 
 from .types import MatrixUserID, TelegramID
 from .db import Puppet as DBPuppet
-from .util import ignore_coro
 from . import util
 
 if TYPE_CHECKING:
@@ -82,6 +81,7 @@ def __init__(self,
 
         self.default_mxid_intent = self.az.intent.user(self.default_mxid)
         self.intent = self._fresh_intent()  # type: IntentAPI
+        self.sync_task = None  # type: Optional[asyncio.Future]
 
         self.cache[id] = self
         if self.custom_mxid:
@@ -154,7 +154,7 @@ async def init_custom_mxid(self) -> PuppetError:
                 return PuppetError.OnlyLoginSelf
             return PuppetError.InvalidAccessToken
         if config["bridge.sync_with_custom_puppets"]:
-            ignore_coro(asyncio.ensure_future(self.sync(), loop=self.loop))
+            self.sync_task = asyncio.ensure_future(self.sync(), loop=self.loop)
         return PuppetError.Success
 
     async def leave_rooms_with_default_user(self) -> None:
@@ -236,6 +236,8 @@ def handle_sync(self, presence: List, ephemeral: Dict) -> None:
     async def sync(self) -> None:
         try:
             await self._sync()
+        except asyncio.CancelledError:
+            self.log.info("Syncing cancelled")
         except Exception:
             self.log.exception("Fatal error syncing")
 
diff --git a/mautrix_telegram/user.py b/mautrix_telegram/user.py
index dcb571cb..69642468 100644
--- a/mautrix_telegram/user.py
+++ b/mautrix_telegram/user.py
@@ -136,13 +136,13 @@ def save(self) -> None:
         self.db_instance.update(tgid=self.tgid, tg_username=self.username, tg_phone=self.phone,
                                 saved_contacts=self.saved_contacts)
 
-    def delete(self) -> None:
+    def delete(self, delete_db: bool = True) -> None:
         try:
             del self.by_mxid[self.mxid]
             del self.by_tgid[self.tgid]
         except KeyError:
             pass
-        if self._db_instance:
+        if delete_db and self._db_instance:
             self._db_instance.delete()
 
     @classmethod
@@ -316,7 +316,7 @@ def unregister_portal(self, portal: po.Portal) -> None:
 
     async def needs_relaybot(self, portal: po.Portal) -> bool:
         return not await self.is_logged_in() or (
-            self.is_bot and portal.tgid_full not in self.portals)
+            (portal.has_bot or self.bot) and portal.tgid_full not in self.portals)
 
     def _hash_contacts(self) -> int:
         acc = 0
@@ -328,7 +328,7 @@ async def sync_contacts(self) -> None:
         response = await self.client(GetContactsRequest(hash=self._hash_contacts()))
         if isinstance(response, ContactsNotModified):
             return
-        self.log.debug("Updating contacts...")
+        self.log.debug(f"Updating contacts of {self.name}...")
         self.contacts = []
         self.saved_contacts = response.saved_count
         for user in response.users:
diff --git a/mautrix_telegram/web/common/auth_api.py b/mautrix_telegram/web/common/auth_api.py
index 803df2e7..cf326cbc 100644
--- a/mautrix_telegram/web/common/auth_api.py
+++ b/mautrix_telegram/web/common/auth_api.py
@@ -24,7 +24,7 @@
 
 from telethon.errors import *
 
-from ...commands.auth import enter_password
+from ...commands.telegram.auth import enter_password
 from ...util import format_duration, ignore_coro
 from ...puppet import Puppet, PuppetError
 from ...user import User
diff --git a/mautrix_telegram/web/provisioning/__init__.py b/mautrix_telegram/web/provisioning/__init__.py
index eec0b3c4..995ac2cf 100644
--- a/mautrix_telegram/web/provisioning/__init__.py
+++ b/mautrix_telegram/web/provisioning/__init__.py
@@ -28,7 +28,7 @@
 from ...user import User
 from ...portal import Portal
 from ...util import ignore_coro
-from ...commands.portal import user_has_power_level, get_initial_state
+from ...commands.portal.util import user_has_power_level, get_initial_state
 from ..common import AuthAPI
 
 if TYPE_CHECKING: