tried about 238472893764 ways to import rubocop and solargraph

Have a look if you want, I give up

modules/languages/ruby/format-derivation.nix

@@ -0,0 +1,41 @@
+{
+  pkgs,
+  stdenv,
+}: let
+  #formatter-env = with pkgs;
+  #  bundlerEnv {
+  #    name = "Gem dependencies";
+  #    # inherit ruby_3_2;
+  #    ruby = ruby_3_2;
+  #    gemdir = ./.;
+  #      gemConfig =
+  #        pkgs.defaultGemConfig
+  #        // {
+  #          nokogiri = attrs: {
+  #            buildFlags = ["--use-system-libraries"]; # "--with-zlib-include=${pkgs.zlib}/include/libxml2"];
+  #          };
+  #        };
+  #  };
+in
+  stdenv.mkDerivation {
+    name = "Format environment";
+
+    # nativeBuildInputs = [
+    #    pkgs.libxslt
+    #    pkgs.zlib
+    #    pkgs.libxml2
+    #    pkgs.pkg-config
+    #    pkgs.rubocop
+    #    pkgs.solargraph
+    #  ];
+
+    # Add the derivation to the PATH
+    buildInputs = [
+      pkgs.libxslt
+      pkgs.libxml2
+      pkgs.rubocop
+      pkgs.solargraph
+
+      # formatter-env
+    ];
+  }