pinwheel: Enable gleam in emacs

hosts/pinwheel/modules/default.nix

@@ -33,6 +33,7 @@ in
       rust.enable = true;
       scala.enable = true;
       python.enable = true;
+      gleam.enable = true;
 
       keyboard.enable = true;
       containers = {

hosts/pinwheel/modules/emacs/config.org

@@ -511,6 +511,9 @@ Setup prefix for keybindings.
     (add-to-list 'eglot-server-programs
        '(nix-mode . ("nixd")))
 
+    (add-to-list 'eglot-server-programs
+      '(gleam-ts-mode . ("gleam" "lsp")))
+
     (setq-default eglot-workspace-configuration
       '(
         :metals (
@@ -529,6 +532,9 @@ Setup prefix for keybindings.
            (nix-mode . eglot-ensure)
            (nix-mode . alex/format-on-save)
 
+           (gleam-ts-mode . eglot-ensure)
+           (gleam-ts-mode . alex/format-on-save)
+
            (python-mode . eglot-ensure)
            (javascript-mode . eglot-ensure)
            (js-mode . eglot-ensure)
@@ -573,6 +579,12 @@ Setup prefix for keybindings.
     )
   )
 #+END_SRC
+** Gleam
+#+BEGIN_SRC emacs-lisp
+  (use-package gleam-ts-mode
+    :mode "\\.gleam\\'"
+  )
+#+END_SRC
 ** YAML
 #+BEGIN_SRC emacs-lisp
   (use-package yaml-mode

hosts/pinwheel/modules/gleam/default.nix

@@ -0,0 +1,25 @@
+{
+  pkgs,
+  lib,
+  config,
+  ...
+}:
+let
+  enabled = config.mod.gleam.enable;
+in
+{
+  options = {
+    mod.gleam = {
+      enable = lib.mkEnableOption "enable gleam module";
+    };
+  };
+
+  config = lib.mkIf enabled {
+    home-manager.users.alex = {
+      home.packages = [
+        pkgs.gleam
+        pkgs.erlang
+      ];
+    };
+  };
+}