diff --git a/flake.nix b/flake.nix
index df36837..c41fdea 100644
--- a/flake.nix
+++ b/flake.nix
@@ -2,10 +2,11 @@
   description = "im gonna cry again ;-;";
 
   inputs = {
-    systems.url = "github:nix-systems/default";
+    systems.url = "github:nix-systems/default-linux";
 
     nixpkgs.url = "github:nixos/nixpkgs/nixos-25.11";
     nixpkgs-unstable.url = "github:NixOS/nixpkgs/nixos-unstable";
+    nixpkgs-master.url = "github:NixOS/nixpkgs/master";
 
     home-manager = {
       url = "github:nix-community/home-manager/release-25.11";
diff --git a/groups/cryde/default.nix b/groups/cryde/default.nix
index 0229556..0596a01 100644
--- a/groups/cryde/default.nix
+++ b/groups/cryde/default.nix
@@ -54,20 +54,6 @@
 
     mango.enable = true;
 
-    neovim = {
-      enable = true;
-      defaultEditor = true;
-      viAlias = true;
-      vimAlias = true;
-      configure = {
-        customRC = ''
-          set number
-          set tabstop=4
-          set shiftwidth=4
-        '';
-      };
-    };
-
     # Thunar also uses: `services.tumbler` & `services.gvfs`
     thunar = {
       enable = true;
diff --git a/homes/me/default.nix b/homes/me/default.nix
index ec85ed3..ad21f43 100755
--- a/homes/me/default.nix
+++ b/homes/me/default.nix
@@ -36,8 +36,10 @@
     homeDirectory = "/home/me";
 
     shellAliases = {
-      rebuild = "sudo nixos-rebuild switch --flake /home/me/flake --show-trace";
-      trybuild = "sudo nixos-rebuild test --flake /home/me/flake --show-trace";
+      # rebuild = "sudo nixos-rebuild switch --flake /home/me/flake --show-trace";
+      # trybuild = "sudo nixos-rebuild test --flake /home/me/flake --show-trace";
+      rebuild = "nh os switch ~/flake --show-trace";
+      trybuild = "nh os test ~/flake --show-trace";
       brip = "batgrep"; # bat + ripgrep
       man = "batman"; # bat + man
     };
diff --git a/nixpkgs.nix b/nixpkgs.nix
index 18fcf98..fa6e201 100644
--- a/nixpkgs.nix
+++ b/nixpkgs.nix
@@ -11,7 +11,6 @@
         (import ./overlays args)
       ];
       config = {
-        # allowUnfree = false;
         allowBroken = false;
         allowUnfreePredicate = pkg:
           builtins.elem (lib.getName pkg) [
@@ -40,5 +39,16 @@
         allowBroken = false;
       };
     };
+
+    # nixpkgs-master
+    mpkgs = {
+      inherit system;
+      source = inputs.nixpkgs-master;
+      overlays = [];
+      config = {
+        allowUnfree = false;
+        allowBroken = false;
+      };
+    };
   };
 }