Minor changes

- Redid the flake module to be based on extendModules instead
- Added wrappers
- Refactored code
- Updated dependencies

wrappers/helix/default.nix

@@ -0,0 +1,44 @@
+{
+  pkgs,
+  lib,
+  ...
+}: {
+  programs.helix = {
+    enable = true;
+    settings = {
+      editor = {
+        true-color = true;
+        line-number = "relative";
+        mouse = false;
+        cursor-shape.insert = "bar";
+        color-modes = true;
+        cursorline = true;
+        auto-save = true;
+        indent-guides.render = true;
+      };
+    };
+    languages = {
+      language = [
+        {
+          name = "koka";
+          scope = "scope.koka";
+          file-types = ["kk"];
+          roots = [];
+          indent = {
+            tab-width = 4;
+            unit = "    ";
+          };
+        }
+        {
+          name = "racket";
+          indent = {
+            tab-width = 2;
+            unit = "  ";
+          };
+        }
+      ];
+    };
+  };
+
+  wrappers.helix.pathAdd = [pkgs.nil];
+}