Initial commit of a working Chucya flake?

chuckya/source.nix

@@ -0,0 +1,22 @@
+/*
+This fetches the glitch-soc source from GitHub and patches it.
+
+This needs to be a separately buildable package so that update.sh can build it during upgrading,
+because it needs it for generating `gemset.nix` from the Gemfile in the source.
+*/
+
+{
+  applyPatches,
+  fetchFromGitHub,
+  lib,
+}:
+
+let
+  versionData = import ./version_data.nix;
+in applyPatches {
+  src = fetchFromGitHub {
+    owner = "TheEssem";
+    repo = "mastodon";
+    inherit (versionData) rev hash;
+  };
+}