some changes

hosts/nb-new.cloonar.com/modules/sway/sway.nix

@@ -18,7 +18,9 @@ let
   };
 
   sway-conf = builtins.readFile ./sway.conf + cfg.additionalConfig;
-  unstable = import <nixos-unstable> { config = { allowUnfree = true; }; };
+  unstable = import (fetchTarball https://nixos.org/channels/nixos-unstable/nixexprs.tar.xz) {
+    config = { allowUnfree = true; };
+  };
 in {
   imports = [
     ./social.nix