fix: silly

flake.nix

@@ -11,6 +11,7 @@
       overlays.default = final: prev: {
         inherit (self.packages.${prev.system}) fsh;
       };
+      homeModules.fsh = import ./home.nix;
     } // flake-utils.lib.eachDefaultSystem (system:
       let
         pkgs = import nixpkgs {

home.nix

@@ -0,0 +1,27 @@
+{ pkgs, lib, config, ... }:
+
+with lib;
+
+let
+  cfg = config.programs.fsh;
+in
+{
+  options.programs.fsh = {
+    enable = mkOption {
+      type = types.bool;
+      default = false;
+      description = ''
+      Enables the fsh prompt for the fish shell.
+      programs.fish.enable must also be set to true for this option to have effect.
+      '';
+    };
+  };
+
+  config = mkIf cfg.enable {
+    home.packages = [ pkgs.fsh ];
+    programs.fish.functions.fish_prompt.body = ''
+    set FSH_LAST_STATUS $status
+    fsh $FSH_LAST_STATUS
+    '';
+  };
+}