nix: move devshell into its own file

flake.nix

@@ -29,6 +29,10 @@
         outputs = ["out" "dev"];
       };
   in {
+    devShells.${system} = import ./nix/devshell.nix {
+      inherit self pkgs;
+    };
+
     mkLuaPackage = import ./nix/lua.nix {
       inherit pkgs;
       astal = self;
@@ -52,37 +56,5 @@
       tray = mkPkg "astal-tray" ./lib/tray [gtk3 gdk-pixbuf libdbusmenu-gtk3 json-glib];
       wireplumber = mkPkg "astal-wireplumber" ./lib/wireplumber [wireplumber];
     };
-
-    devShells.${system} = let
-      buildInputs = with pkgs; [
-        wrapGAppsHook
-        gobject-introspection
-        meson
-        pkg-config
-        ninja
-        vala
-        gtk3
-        gtk-layer-shell
-        json-glib
-        pam
-        gvfs
-        networkmanager
-        gdk-pixbuf
-        wireplumber
-        libdbusmenu-gtk3
-        wayland
-
-        (lua.withPackages (ps: [ps.lgi]))
-        (python3.withPackages (ps: [ps.pygobject3 ps.pygobject-stubs]))
-        gjs
-      ];
-    in {
-      default = pkgs.mkShell {
-        inherit buildInputs;
-      };
-      astal = pkgs.mkShell {
-        buildInputs = buildInputs ++ (builtins.attrValues self.packages.${system});
-      };
-    };
   };
 }

nix/devshell.nix

@@ -0,0 +1,52 @@
+{
+  self,
+  pkgs,
+}: let
+  lua = pkgs.lua.withPackages (ps: [
+    ps.lgi
+    (ps.luaPackages.toLuaModule (pkgs.stdenv.mkDerivation {
+      name = "astal";
+      src = "${self}/core/lua";
+      dontBuild = true;
+      installPhase = ''
+        mkdir -p $out/share/lua/${ps.lua.luaversion}/astal
+        cp -r astal/* $out/share/lua/${ps.lua.luaversion}/astal
+      '';
+    }))
+  ]);
+
+  python = pkgs.python3.withPackages (ps: [
+    ps.pygobject3
+    ps.pygobject-stubs
+  ]);
+
+  buildInputs = with pkgs; [
+    wrapGAppsHook
+    gobject-introspection
+    meson
+    pkg-config
+    ninja
+    vala
+    gtk3
+    gtk-layer-shell
+    json-glib
+    pam
+    gvfs
+    networkmanager
+    gdk-pixbuf
+    wireplumber
+    libdbusmenu-gtk3
+    wayland
+
+    lua
+    python
+    gjs
+  ];
+in {
+  default = pkgs.mkShell {
+    inherit buildInputs;
+  };
+  astal = pkgs.mkShell {
+    buildInputs = buildInputs ++ (builtins.attrValues self.packages.${pkgs.system});
+  };
+}

nix/lua.nix

@@ -52,7 +52,7 @@ in
 
     preFixup = ''
       gappsWrapperArgs+=(
-        --prefix PATH : ${pkgs.lib.makeBinPath extraPacakges}
+        --prefix PATH : "${pkgs.lib.makeBinPath extraPacakges}"
       )
     '';
   }