diff --git a/.gitignore b/.gitignore
index 68d8f8d..f388d4b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -23,3 +23,7 @@ erl_crash.dump
 pathex-*.tar
 
 /.elixir_ls/
+
+# Nix auto shell
+.direnv
+.envrc
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..93b865c
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,27 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1711715736,
+        "narHash": "sha256-9slQ609YqT9bT/MNX9+5k5jltL9zgpn36DpFB7TkttM=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "807c549feabce7eddbf259dbdcec9e0600a0660d",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..92bb747
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,9 @@
+{
+  description = "Pathex: Elixir language lenses and Access replacement";
+  inputs.nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
+  outputs = { nixpkgs, ... }:
+    let pkgs = nixpkgs.legacyPackages.x86_64-linux;
+    in {
+      devShells.x86_64-linux.default = import ./shell.nix { inherit pkgs; };
+    };
+}