diff --git a/README.md b/README.md
index 6b43d58..b1100cd 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@ Install dzgui on nix-based systems
 
 # Installation
 
-## Using flake profiles
+## Using flake profiles (not recommended)
 
 ```sh
 # install
@@ -12,28 +12,26 @@ nix profile install github:lelgenio/dzgui-nix
 nix profile upgrade '.*dzgui.*'
 ```
 
-## On non flake NixOs systems
+### You will also *need* to set `vm.max_map_count`:
+
+This is done automatically if you install via NixOs modules as shown 
+
+#### on NixOs systems:
 
 ```nix
 # configuration.nix
-{ pkgs, ... }:
-let
-  dzgui-nix = pkgs.fetchFromGitHub {
-    owner = "lelgenio";
-    repo = "dzgui-nix";
-    rev = "995dd52adc6fe5cbbd4530a9f2add88e1e04d0da";
-    hash = "sha256-giMAU0PqMOqTe3zQax4rTbhu5efyFcaQu3EP5CqPIaU=";
-  };
-  dzgui = (pkgs.callPackage "${dzgui-nix}/package");
-in
 {
-  environment.systemPackages = [
-    dzgui
-  ];
+    boot.kernel.sysctl."vm.max_map_count" = 1048576;
 }
 ```
 
-## As part of a NixOs system flake
+#### on non-NixOs systems:
+
+```sh
+sudo sysctl -w vm.max_map_count | sudo tee /etc/sysctl.d/dayz.conf
+```
+
+## As a NixOs module (recommended)
 
 Flake users are assumed to have a `flake.nix` file and a `configuration.nix`.
 
@@ -52,19 +50,18 @@ Flake users are assumed to have a `flake.nix` file and a `configuration.nix`.
 }
 ```
 
-2 - Add the `dzgui` package to your environment packages:
+2 - Add the `dzgui-nix` module to your system configuration, and enable it:
 
 ```nix
 # flake.nix
 {
     outputs = inputs@{pkgs, ...}: {
         nixosConfigurations.your-hostname-here = lib.nixosSystem {
-            modules = [
-                {
-                  environment.systemPackages = [
-                    inputs.dzgui-nix.packages.default
-                  ];
-                }
+            modules = [ 
+                # Add the module
+                inputs.dzgui-nix.nixosModules.default 
+                # Enable it, this can also go in configuration.nix
+                { programs.dzgui.enable = true; }
                 # other modules...
             ];
         };
@@ -83,3 +80,7 @@ Now dzgui will update together with your flake:
 ```sh
 nix flake update
 ```
+
+## On non flake systems
+
+Good luck.
diff --git a/flake.nix b/flake.nix
index 479b6ff..d7e1de5 100644
--- a/flake.nix
+++ b/flake.nix
@@ -22,11 +22,7 @@
 
       nixosModules = rec {
         default = dzgui;
-        dzgui = pkgs.lib.warn (
-          "The dzgui NixOs module is deprecated and will be removed in the future, "
-          + "check https://github.com/lelgenio/dzgui-nix/blob/main/README.md "
-          + "for instructions on how to install dzgui as a regular package"
-        ) (import ./module.nix);
+        dzgui = import ./module.nix;
       };
 
       devShells.${system}.default = pkgs.mkShell {