diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..1d953f4
--- /dev/null
+++ b/.envrc
@@ -0,0 +1 @@
+use nix
diff --git a/flake.lock b/flake.lock
deleted file mode 100644
index 6600b16..0000000
--- a/flake.lock
+++ /dev/null
@@ -1,26 +0,0 @@
-{
-  "nodes": {
-    "nixpkgs": {
-      "locked": {
-        "lastModified": 1671636183,
-        "narHash": "sha256-dboEYqb7vnH9pVEwgaWz7dzVi7eh6N5tRuhJ/nluoCg=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "60ff1ccd98a2f81347457a473c7a96b9b6166c88",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
-    "root": {
-      "inputs": {
-        "nixpkgs": "nixpkgs"
-      }
-    }
-  },
-  "root": "root",
-  "version": 7
-}
diff --git a/flake.nix b/flake.nix
deleted file mode 100644
index 9bc746e..0000000
--- a/flake.nix
+++ /dev/null
@@ -1,37 +0,0 @@
-{
-  description = "VPS setup";
-
-  inputs = {
-    nixpkgs.url = "github:NixOS/nixpkgs";
-  };
-
-  outputs = { self, nixpkgs }:
-    let
-      allSystems = [
-        "x86_64-linux" # 64-bit Intel/AMD Linux
-        "aarch64-linux" # 64-bit ARM Linux
-        "x86_64-darwin" # 64-bit Intel macOS
-        "aarch64-darwin" # 64-bit ARM macOS
-      ];
-      forAllSystems = f: nixpkgs.lib.genAttrs allSystems (system: f {
-        pkgs = import nixpkgs { inherit system; };
-      });
-    in
-    {
-      devShells = forAllSystems ({ pkgs }: {
-        default =
-          pkgs.mkShell {
-            packages = with pkgs; [
-              ansible
-              ansible-lint
-              certbot
-              dig
-              openssl
-              caddy
-              shellcheck
-              git-crypt
-            ];
-          };
-      });
-    };
-}
diff --git a/shell.nix b/shell.nix
new file mode 100644
index 0000000..eddb114
--- /dev/null
+++ b/shell.nix
@@ -0,0 +1,12 @@
+{ pkgs ? import <nixpkgs> { } }: pkgs.mkShell {
+  packages = with pkgs; [
+    ansible
+    ansible-lint
+    certbot
+    dig
+    openssl
+    caddy
+    shellcheck
+    git-crypt
+  ];
+}