{ pkgs, ... }:

{
  # nil (Nix language server) for x1carbon only — wired into VS Code via the
  # nix-community Nix IDE extension and into opencode (see opencode.nix).

  home.packages = [ pkgs.nil ];

  programs.vscode = {
    enable = true;
    profiles.default = {
      extensions = [ pkgs.vscode-extensions.jnoortheen.nix-ide ];
      userSettings = {
        "nix.enableLanguageServer" = true;
        "nix.serverPath" = "${pkgs.nil}/bin/nil";
        # All nil LSP settings nest under a "nil" key. Formatting shells out
        # to nixfmt (the flake formatter), reading stdin / writing stdout.
        "nix.serverSettings" = {
          nil = {
            formatting = {
              command = [
                "nixfmt"
                "-"
              ];
            };
          };
        };
      };
    };
  };
}