fix: Configure Neovim using a wrappers

users/crumb/programs/nvim.nix

@@ -1,12 +1,31 @@
 { config, lib, pkgs, ... }:
 
-{
-  home.file.".vimrc".text = ''
-    imap jk <ESC>
-    xmap JK <ESC>
-  '';
+let
+  my-vimrc =
+    pkgs.writeTextFile {
+      name = "vimrc";
+      text = ''
+        imap jk <ESC>
+        xmap JK <ESC>
+        set number
+        set relativenumber
+      '';
+    };
 
-  xdg.configFile."nvim/init.vim".text = ''
-    so ~/.vimrc
-  '';
+  my-neovim =
+    pkgs.symlinkJoin {
+      name = "neovim";
+      paths = [ pkgs.neovim ];
+      buildInputs = [ pkgs.makeWrapper ];
+      postBuild = ''
+        wrapProgram $out/bin/nvim \
+          --add-flags "-u ${my-vimrc}"
+        # Symlink {v,vi,vim} to nvim.
+        for i in {v,vi,vim}; do
+          ln -s $out/bin/nvim $out/bin/$i
+        done
+      '';
+    };
+in {
+  home.packages = [ my-neovim ];
 }