Upgrade for snake_case builtins and PNC

examples/example.roc

@@ -1,22 +1,32 @@
-app [main] {
-    cli: platform "https://github.com/roc-lang/basic-cli/releases/download/0.17.0/lZFLstMUCUvd5bjnnpYromZJXkQUrdhbva4xdBInicE.tar.br",
+app [main!] {
+    # TODO replace with release URL
+    cli: platform "../../basic-cli/platform/main.roc",
     html: "../src/main.roc",
 }
 
 import cli.Stdout
 import html.Html
 import html.Attribute
 
-main =
-    page = Html.html [] [
-        Html.body [] [
-            Html.h1 [] [Html.text "Roc"],
-            Html.p [] [
-                Html.text "My favourite language is ",
-                Html.a [Attribute.href "https://roc-lang.org/"] [Html.text "Roc"],
-                Html.text "!",
-            ],
+main! = \_args ->
+    page = Html.html(
+        [],
+        [
+            Html.body(
+                [],
+                [
+                    Html.h1([], [Html.text("Roc")]),
+                    Html.p(
+                        [],
+                        [
+                            Html.text("My favourite language is "),
+                            Html.a([Attribute.href("https://roc-lang.org/")], [Html.text("Roc")]),
+                            Html.text("!"),
+                        ],
+                    ),
+                ],
+            ),
         ],
-    ]
-    renderedHtml = Html.render page
-    Stdout.line renderedHtml
+    )
+    rendered_html = Html.render(page)
+    Stdout.line!(rendered_html)

flake.nix

@@ -2,7 +2,7 @@
   inputs = {
     nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
     flake-parts.url = "github:hercules-ci/flake-parts";
-    roc.url = "github:roc-lang/roc?rev=0295bb58da3de1dec84f63b5a1847ff32a3fd290";
+    roc.url = "github:roc-lang/roc";
   };
 
   nixConfig = {