diff --git a/.envrc b/.envrc
new file mode 100644
index 00000000..1d953f4b
--- /dev/null
+++ b/.envrc
@@ -0,0 +1 @@
+use nix
diff --git a/.gitignore b/.gitignore
index 93c801d9..a7e6d4f7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,4 +6,5 @@
 /zmk-config
 /build
 *.DS_Store
-__pycache__
\ No newline at end of file
+__pycache__
+/.direnv
diff --git a/shell.nix b/shell.nix
new file mode 100644
index 00000000..a4457345
--- /dev/null
+++ b/shell.nix
@@ -0,0 +1,23 @@
+{ pkgs ? import <nixpkgs> { } }:
+
+with pkgs;
+
+let inherit (lib) ;
+in mkShell {
+  buildInputs = [
+    cmake
+    ninja
+    python3
+    ccache
+    dtc
+    dfu-util
+    gcc-arm-embedded
+    python38Packages.west
+    python38Packages.pyelftools
+  ];
+
+  shellHook = ''
+    export ZEPHYR_TOOLCHAIN_VARIANT=gnuarmemb
+    export GNUARMEMB_TOOLCHAIN_PATH=${pkgs.gcc-arm-embedded}
+  '';
+}