add more devel packages

home/features/cli/default.nix

@@ -13,5 +13,6 @@
   home.packages = with pkgs; [
     comma # nix-shell a package by prefixing it with `,`
     ripgrep # well, it's grep
+    fastfetch # gotta show system information somehow!
   ];
 }

home/features/devel/default.nix

@@ -12,10 +12,16 @@
     autoconf
     pkg-config
     bun
+    rustup
 
     # haskell stuff
     haskell.compiler.ghc910
     cabal-install
     stack
+
+    # nix stuff
+    nixpkgs-fmt
+    nix-tree
+    nil
   ];
 }