enable carapace command-line completion

modules/cli/shell/all.nix

@@ -12,6 +12,7 @@ in
       zsh.enable = true;
       fish.enable = true;
       starship.enable = true;
+      carapace.enable = true;
     };
   };
 }

modules/cli/shell/carapace.nix

@@ -0,0 +1,17 @@
+{ config, lib, ... }:
+let
+  cfg = config.my.cli.shell.carapace;
+in
+{
+  options.my.cli.shell.carapace = {
+    enable = lib.mkEnableOption "carapace completer";
+  };
+
+  config = lib.mkIf cfg.enable {
+    my.hm = {
+      programs.carapace = {
+        enable = true;
+      };
+    };
+  };
+}