Tighten up evaluation

No need to bring along the unstable when I ended up never using it.
Also, clean up some extra cruft in the tmux configuration

flake.nix

@@ -50,7 +50,6 @@
 		...}@inputs:
 	let
 		pkg-sets = final: prev: {
-			unstable = import inputs.nixunstable { system = final.system; inherit overlays; };
 			nix23_05 = import inputs.nix23_05 { system = final.system; inherit overlays; };
 		};
 		local_overlay = import ./overlays;

home/home.nix

@@ -17,10 +17,8 @@ in
 	programs.tmux = {
 		enable = true;
 		keyMode = "vi";
-		shell = "${pkgs.myxonsh}/bin/xonsh";
 		terminal = "xterm-256color";
 		customPaneNavigationAndResize = true;
-			#"set-option -g default-command ${pkgs.myxonsh}/bin/xonsh"
 		extraConfig = (lib.strings.concatStringsSep "\n" [
 			"bind P paste-buffer"
 		]);

home/modules/gui.nix

@@ -23,7 +23,6 @@ in {
 			cdrtools
 			fluffychat
 			freetube
-			cinny-desktop
 			qpwgraph
 			vlc
 			x265

overlays/default.nix

@@ -82,7 +82,7 @@ in rec {
 	};
 	pipenv-ivr = prev.callPackage ./pipenv.nix { };
 
-	myxonsh = (prev.unstable.xonsh-unwrapped.passthru.wrapper.override {
+	myxonsh = (prev.xonsh-unwrapped.passthru.wrapper.override {
 		extraPackages = (ps: with ps; [
 			xonsh-apipenv
 			xonsh-direnv