make rust-analyzer track latest changes

flake.nix

@@ -7,6 +7,7 @@
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.11";
     nixpkgs-unstable.url = "github:NixOS/nixpkgs/nixos-unstable";
     nixpkgs-staging.url = "github:NixOS/nixpkgs/staging-next";
+    nixpkgs-master.url = "github:NixOS/nixpkgs/master";
 
     home-manager = {
       url = "github:nix-community/home-manager/master";

homes/modules/programs/neovim/nixcats.nix

@@ -1,6 +1,7 @@
 {
   inputs,
   spkgs,
+  mpkgs,
   ...
 }: let
   inherit
@@ -64,7 +65,7 @@ in {
             ];
             rust = with pkgs; [
               cargo
-              rust-analyzer
+              mpkgs.rust-analyzer
             ];
             zig = with pkgs; [
               spkgs.zls # FIX: using spkgs version as zls is broken rn ;-;

nixpkgs.nix

@@ -35,5 +35,14 @@
       ];
       config.allowUnfree = true;
     };
+
+    # nixpkgs-master
+    mpkgs = {
+      source = inputs.nixpkgs-master;
+      overlays = [
+        (import ./overlays.nix args)
+      ];
+      config.allowUnfree = true;
+    };
   };
 }