Maybe use unstable channel machigng?

configuration.nix

@@ -4,6 +4,10 @@
 
 { config, pkgs, ... }:
 
+let
+  unstable = import <nixpkgs-unstable> { config = { allowUnfree = true; }; };
+in
+
 {
   imports = [
     # Include the results of the hardware scan.
@@ -184,7 +188,7 @@
     nodejs_20
     uv
     code-cursor
-    cursor-cli
+    unstable.cursor-cli
   ];
 
   # Some programs need SUID wrappers, can be configured further or are