move building to default

default.nix

@@ -0,0 +1,39 @@
+{ wrapNeovim, neovim-unwrapped, vimPlugins, ... }:
+
+wrapNeovim neovim-unwrapped {
+  withPython3 = false;
+  withNodeJs = false;
+  withRuby = false;
+
+  configure = {
+    customRC = ''
+      lua << EOF
+        require("nvim-treesitter.configs").setup({
+          -- A list of parser names, or "all"
+          ensure_installed = {},
+
+          -- Install parsers synchronously (only applied to `ensure_installed`)
+          sync_install = false,
+
+          highlight = {
+            enable = true,
+          },
+
+          indent = {
+            enable = true,
+          },
+        })
+      EOF
+    '';
+
+    packages.myVimPackages =
+      {
+        start = with vimPlugins; [
+          (nvim-treesitter.withPlugins
+            (ts: [
+              ts.tree-sitter-nix
+            ]))
+        ];
+      };
+  };
+}

flake.nix

@@ -9,44 +9,7 @@
       let
         pkgs = import nixpkgs { inherit system; };
 
-        neovim = pkgs.wrapNeovim pkgs.neovim-unwrapped
-          {
-            withPython3 = false;
-            withNodeJs = false;
-            withRuby = false;
-
-            configure = {
-              customRC = ''
-                lua << EOF
-                  require("nvim-treesitter.configs").setup({
-                    -- A list of parser names, or "all"
-                    ensure_installed = {},
-
-                    -- Install parsers synchronously (only applied to `ensure_installed`)
-                    sync_install = false,
-
-                    highlight = {
-                      enable = true,
-                    },
-
-                    indent = {
-                      enable = true,
-                    },
-                  })
-                EOF
-              '';
-
-              packages.myVimPackages =
-                {
-                  start = with pkgs.vimPlugins; [
-                    (nvim-treesitter.withPlugins
-                      (ts: [
-                        ts.tree-sitter-nix
-                      ]))
-                  ];
-                };
-            };
-          };
+        neovim = pkgs.callPackage ./. { };
       in
       {
         devShells.default = pkgs.mkShell {