Add R env

modules/home/common/env/r.nix

@@ -0,0 +1,22 @@
+{
+  pkgs,
+  lib,
+  config,
+  ...
+}:
+with lib;
+let
+  cfg = config.home.env.r;
+in
+{
+  options.home.env.r = {
+    enable = mkEnableOption "Zen Editor options";
+  };
+  config = mkIf cfg.enable {
+
+    home.packages = with pkgs; [
+      R
+    ];
+
+  };
+}

modules/home/common/env/rust.nix

@@ -18,5 +18,9 @@ in
       rustup
     ];
 
+    home.sessionVariables = {
+      RUSTUP_HOME = ".rustup";
+    };
+
   };
 }