diff --git a/nixos/modules/programs/autoenv.nix b/nixos/modules/programs/autoenv.nix
new file mode 100644
index 00000000000000..53fae886335689
--- /dev/null
+++ b/nixos/modules/programs/autoenv.nix
@@ -0,0 +1,32 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+
+let
+  cfg = config.programs.autoenv;
+in
+{
+  options = {
+    programs.autoenv = {
+      enable = lib.mkEnableOption "autoenv";
+      package = lib.mkPackageOption pkgs "autoenv" { };
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    environment.systemPackages = [ pkgs.autoenv ];
+
+    programs = {
+      zsh.interactiveShellInit = ''
+        source ${cfg.package}/share/autoenv/activate.sh
+      '';
+
+      bash.interactiveShellInit = ''
+        source ${cfg.package}/share/autoenv/activate.sh
+      '';
+    };
+  };
+}
diff --git a/pkgs/by-name/au/autoenv/package.nix b/pkgs/by-name/au/autoenv/package.nix
new file mode 100644
index 00000000000000..687ac797971ba0
--- /dev/null
+++ b/pkgs/by-name/au/autoenv/package.nix
@@ -0,0 +1,35 @@
+{
+  stdenv,
+  fetchFromGitHub,
+  lib,
+}:
+
+stdenv.mkDerivation (finalAttrs: {
+  pname = "autoenv";
+  version = "0-unstable-2024-10-16";
+
+  src = fetchFromGitHub {
+    owner = "hyperupcall";
+    repo = "autoenv";
+    rev = "90241f182d6a7c96e9de8a25c1eccaf2a2d1b43a";
+    hash = "sha256-vZrsMPhuu+xPVAww04nKyoOl7k0upvpIaxeMrCikDio=";
+  };
+
+  dontBuild = true;
+
+  installPhase = ''
+    runHook preInstall
+    mkdir -p $out/share
+    cp -R $src $out/share/autoenv
+    chmod +x $out/share/autoenv
+    runHook postInstall
+  '';
+
+  meta = {
+    description = "Per-directory shell environments sourced from .env file";
+    homepage = "https://github.com/hyperupcall/autoenv";
+    license = lib.licenses.mit;
+    platforms = lib.platforms.all;
+    maintainers = with lib.maintainers; [ clebs ];
+  };
+})