diff --git a/flake.lock b/flake.lock
index 0cfdeae..2539955 100644
--- a/flake.lock
+++ b/flake.lock
@@ -38,10 +38,27 @@
         "type": "github"
       }
     },
+    "nixpkgs-unstable": {
+      "locked": {
+        "lastModified": 1678654296,
+        "narHash": "sha256-aVfw3ThpY7vkUeF1rFy10NAkpKDS2imj3IakrzT0Occ=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "5a1dc8acd977ff3dccd1328b7c4a6995429a656b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
     "root": {
       "inputs": {
         "home-manager": "home-manager",
-        "nixpkgs": "nixpkgs"
+        "nixpkgs": "nixpkgs",
+        "nixpkgs-unstable": "nixpkgs-unstable"
       }
     },
     "utils": {
diff --git a/flake.nix b/flake.nix
index faa79ea..b88987d 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,6 +1,7 @@
 {
   inputs = {
     nixpkgs.url = github:NixOS/nixpkgs/nixos-22.11;
+    nixpkgs-unstable.url = github:NixOS/nixpkgs/nixos-unstable;
 
     home-manager = {
       url = github:nix-community/home-manager/release-22.11;
@@ -8,10 +9,22 @@
     };
   };
 
-  outputs = { self, nixpkgs, home-manager }:
+  outputs = { self, nixpkgs, nixpkgs-unstable, home-manager }:
     let
       user = "mandlm";
       theme = "dark";       # dark or light
+
+      nixpkgs-config = {
+        allowUnfree = true;
+        allowUnfreePredicate = (_: true);
+      };
+
+      overlay-unstable = final: prev: {
+        unstable = import nixpkgs-unstable {
+          system = "x86_64-linux";
+          allowUnfree = true;
+        };
+      };
     in
     {
       nixosConfigurations = {
@@ -25,11 +38,12 @@
 
             home-manager.nixosModules.home-manager
             {
-              home-manager.useGlobalPkgs = true;
               home-manager.useUserPackages = true;
               home-manager.extraSpecialArgs = { inherit user theme; };
               home-manager.users.${user} = {
                 imports = [ ./home-${user}.nix ];
+                nixpkgs.config = nixpkgs-config;
+                nixpkgs.overlays = [ overlay-unstable ];
               };
             }
           ];
@@ -45,7 +59,6 @@
 
             home-manager.nixosModules.home-manager
             {
-              home-manager.useGlobalPkgs = true;
               home-manager.useUserPackages = true;
               home-manager.extraSpecialArgs = { inherit user theme; };
               home-manager.users.${user} = {
@@ -53,6 +66,8 @@
                   ./home-${user}.nix
                   ./machines/apache/home-${user}.nix
                 ];
+                nixpkgs.config = nixpkgs-config;
+                nixpkgs.overlays = [ overlay-unstable ];
               };
             }
           ];
@@ -68,7 +83,6 @@
 
             home-manager.nixosModules.home-manager
             {
-              home-manager.useGlobalPkgs = true;
               home-manager.useUserPackages = true;
               home-manager.extraSpecialArgs = { inherit user theme; };
               home-manager.users.${user} = {
@@ -76,6 +90,8 @@
                   ./home-${user}.nix
                   ./machines/p330/home-${user}.nix
                 ];
+                nixpkgs.config = nixpkgs-config;
+                nixpkgs.overlays = [ overlay-unstable ];
               };
             }
           ];
@@ -91,7 +107,6 @@
 
             home-manager.nixosModules.home-manager
             {
-              home-manager.useGlobalPkgs = true;
               home-manager.useUserPackages = true;
               home-manager.extraSpecialArgs = { inherit user theme; };
               home-manager.users.${user} = {
@@ -99,6 +114,8 @@
                   ./home-${user}.nix
                   ./machines/yoga/home-${user}.nix
                 ];
+                nixpkgs.config = nixpkgs-config;
+                nixpkgs.overlays = [ overlay-unstable ];
               };
             }
           ];
diff --git a/home-manager/neovim/default.nix b/home-manager/neovim/default.nix
index 958786c..ff6f38c 100644
--- a/home-manager/neovim/default.nix
+++ b/home-manager/neovim/default.nix
@@ -45,7 +45,7 @@ let
   };
 in
 {
-  home.packages = with pkgs; [
+  home.packages = with pkgs.unstable; [
     xclip
 
     # language servers
@@ -68,7 +68,7 @@ in
   ];
 
   # symlink for a stable path 
-  home.file.".vscode-extensions/vscode-lldb".source = pkgs.vscode-extensions.vadimcn.vscode-lldb;
+  home.file.".vscode-extensions/vscode-lldb".source = pkgs.unstable.vscode-extensions.vadimcn.vscode-lldb;
 
   home.sessionVariables = {
     EDITOR = "nvim";
@@ -77,7 +77,8 @@ in
   programs = {
     neovim = {
       enable = true;
-      plugins = with pkgs.vimPlugins; [
+      # package = pkgs.unstable.neovim;
+      plugins = with pkgs.unstable.vimPlugins; [
         # theme
         nvim-solarized-lua