Modularize everything

modules/editor/emacs/emacs.nix

@@ -0,0 +1,48 @@
+{ inputs, config, lib, pkgs, ... }:
+
+with lib;
+with lib.my;
+let cfg = config.modules.editor.emacs;
+in {
+  options.modules.editor.emacs = { enable = mkBoolOpt false; };
+
+  config = mkIf cfg.enable {
+    home-manager.users.${config.user.name} = {
+
+      imports = [ inputs.nix-doom-emacs.hmModule ];
+
+      home.packages = with pkgs.unstable; [
+        ripgrep
+        fd
+        findutils.locate
+
+        metals
+        rnix-lsp
+        nixfmt
+      ];
+
+      services.emacs = {
+        enable = true;
+        client.enable = true;
+      };
+
+      programs.doom-emacs = {
+        enable = true;
+        doomPrivateDir = ./doom.d;
+        emacsPackagesOverlay = final: prev: {
+          ob-ammonite = with final;
+            (trivialBuild {
+              src = pkgs.fetchFromGitHub {
+                owner = "zwild";
+                repo = "ob-ammonite";
+                rev = "39937dff395e70aff76a4224fa49cf2ec6c57cca";
+                sha256 = pkgs.lib.fakeSha256;
+              };
+              pname = "ob-ammonite";
+              packageRequires = [ s dash editorconfig ];
+            });
+        };
+      };
+    };
+  };
+}