flake: provide dev package

flake.nix

@@ -21,6 +21,7 @@
         ./flake/legacyPackages.nix
         ./flake/overlays.nix
         ./flake/packages.nix
+        ./flake/develop.nix
       ];
 
       flake = {
@@ -56,20 +57,7 @@
         };
       };
 
-      perSystem = {
+      perSystem = {pkgs, ...}: {
-        self',
-        config,
-        pkgs,
-        ...
-      }: {
-        devShells = {
-          default = self'.devShells.lsp;
-          nvim-nix = pkgs.mkShell {packages = [config.packages.nix];};
-          lsp = pkgs.mkShell {
-            packages = with pkgs; [nil statix deadnix alejandra];
-          };
-        };
-
         # Provide the default formatter. `nix fmt` in project root
         # will format available files with the correct formatter.
         # P.S: Please do not format with nixfmt! It messes with many

flake/develop.nix

@@ -0,0 +1,30 @@
+{lib, ...}: {
+  perSystem = {
+    pkgs,
+    config,
+    self',
+    ...
+  }: {
+    devShells = {
+      default = self'.devShells.lsp;
+      nvim-nix = pkgs.mkShellNoCC {packages = [config.packages.nix];};
+      lsp = pkgs.mkShellNoCC {
+        packages = with pkgs; [nil statix deadnix alejandra];
+      };
+    };
+
+    # This package exists to make development easier by providing the place and
+    # boilerplate to build a test nvf configuration. Feel free to use this for
+    # testing, but make sure to discard the changes before creating a pull
+    # request.
+    packages.dev = let
+      configuration = {};
+
+      customNeovim = lib.nvim.neovimConfiguration {
+        inherit pkgs;
+        modules = [configuration];
+      };
+    in
+      customNeovim.neovim;
+  };
+}