From 3d3d6bba608e83abaabb5d5373444d03f7ca9442 Mon Sep 17 00:00:00 2001
From: Pacman99 <pachum99@myrdd.info>
Date: Mon, 31 May 2021 15:08:44 -0700
Subject: [PATCH 1/2] modules: generate registry and add fup-repl to env

---
 src/modules.nix | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/src/modules.nix b/src/modules.nix
index c2d27ade2..0749ac518 100644
--- a/src/modules.nix
+++ b/src/modules.nix
@@ -32,10 +32,9 @@
         "home-manager=${self.inputs.home}"
       ];
 
-      nix.registry = {
-        devos.flake = self;
-        nixos.flake = channel.input;
-      };
+      # package and option is from fup
+      environment.systemPackages = [ pkgs.fup-repl ];
+      nix.generateRegistryFromInputs = lib.mkDefault true;
 
       nix.extraOptions = ''
         experimental-features = ${lib.concatStringsSep " "

From cf803e823ae4d66b89fc6b0b989779c6b9ad5856 Mon Sep 17 00:00:00 2001
From: Pacman99 <pachum99@myrdd.info>
Date: Mon, 31 May 2021 15:42:24 -0700
Subject: [PATCH 2/2] shell/flk: add repl sub-command

---
 src/pkgs-lib/shell/default.nix | 1 +
 src/pkgs-lib/shell/flk.sh      | 7 ++++++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/pkgs-lib/shell/default.nix b/src/pkgs-lib/shell/default.nix
index 8974a1f19..b7909186d 100644
--- a/src/pkgs-lib/shell/default.nix
+++ b/src/pkgs-lib/shell/default.nix
@@ -36,6 +36,7 @@ let
       nixos-generate-config
       nixos-enter
       pkgs'.nixos-rebuild
+      pkgs'.fup-repl
     ];
 
     git.hooks = {
diff --git a/src/pkgs-lib/shell/flk.sh b/src/pkgs-lib/shell/flk.sh
index aadb618d7..d276fa0bf 100755
--- a/src/pkgs-lib/shell/flk.sh
+++ b/src/pkgs-lib/shell/flk.sh
@@ -22,7 +22,8 @@ usage () {
   "iso HOST" "Generate an ISO image of HOST" \
   "install HOST [ARGS]" "Shortcut for nixos-install" \
   "home HOST USER [switch]" "Home-manager config of USER from HOST" \
-  "HOST (switch|boot|test)" "Shortcut for nixos-rebuild"
+  "HOST (switch|boot|test)" "Shortcut for nixos-rebuild" \
+  "repl FLAKE" "Enter a repl with the flake's outputs"
 }
 
 case "$1" in
@@ -93,6 +94,10 @@ case "$1" in
     fi
     ;;
 
+  "repl")
+    repl ${@:2}
+    ;;
+
   *)
     sudo nixos-rebuild --flake "$DEVSHELL_ROOT#$1" "${@:2}"
     ;;