refactor

modules/nixos/tools/fup-repl/default.nix

@@ -0,0 +1,17 @@
+{ lib, pkgs, config, ... }:
+
+with lib;
+with lib.plusultra;
+let
+  cfg = config.plusultra.tools.fup-repl;
+  fup-repl = pkgs.writeShellScriptBin "fup-repl" ''
+    ${pkgs.fup-repl}/bin/repl ''${@}
+  '';
+in
+{
+  options.plusultra.tools.fup-repl = with types; {
+    enable = mkBoolOpt false "Whether to enable fup-repl or not";
+  };
+
+  config = mkIf cfg.enable { environment.systemPackages = [ fup-repl ]; };
+}