Added tmux with custom initial setup (marvin only) & blender (both)

home/packages-marvin.nix

@@ -4,7 +4,10 @@
   home.packages = with pkgs; [
     alacritty
     claude-code
+    fd
+    fzf
     gcc
+    lazygit
     lua-language-server
     nil
     nixpkgs-fmt
@@ -13,6 +16,8 @@
     pkg-config
     rustup
     steam
+    vesktop
+    xclip
     xwallpaper
   ];
 }