use unstable nixos

flake.nix

@@ -2,12 +2,10 @@
   description = "Nixos config flake";
 
   inputs = {
-    nixpkgs.url = "github:nixos/nixpkgs/nixos-24.05";
-
-    unstable.url = "github:nixos/nixpkgs/nixos-unstable";
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
 
     home-manager = {
-      url = "github:nix-community/home-manager/release-24.05";
+      url = "github:nix-community/home-manager";
       inputs.nixpkgs.follows = "nixpkgs";
     };
 
@@ -16,26 +14,21 @@
       inputs.nixpkgs.follows = "nixpkgs";
     };
 
-    musnix = {url = "github:musnix/musnix";};
+    musnix = {
+      url = "github:musnix/musnix";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
   };
 
   outputs = {
-    self,
     nixpkgs,
     home-manager,
     sops-nix,
     ...
   } @ inputs: let
     system = "x86_64-linux";
-    unstable = final: prev: {
-      unstable = import inputs.unstable {
-        system = final.system;
-        config = final.config;
-      };
-    };
     pkgs = import nixpkgs {
       inherit system;
-      overlays = [unstable];
       config.allowUnfree = true;
     };
   in {