diff --git a/default.nix b/default.nix
new file mode 100644
index 00000000..45c80427
--- /dev/null
+++ b/default.nix
@@ -0,0 +1,8 @@
+# default.nix
+let
+  nixpkgs = fetchTarball "https://github.com/NixOS/nixpkgs/tarball/nixos-23.11";
+  pkgs = import nixpkgs { config = {}; overlays = []; };
+in
+{
+  tenyr = pkgs.callPackage ./tenyr.nix { };
+}
diff --git a/tenyr.nix b/tenyr.nix
new file mode 100644
index 00000000..e951b24f
--- /dev/null
+++ b/tenyr.nix
@@ -0,0 +1,33 @@
+{
+    lib,
+    stdenv,
+    fetchFromGitHub,
+    cmake,
+    bison, flex, SDL2, SDL2_image, verilog
+}:
+
+stdenv.mkDerivation {
+    name = "tenyr";
+    version = "v1.0.0-rc2";
+    src = fetchFromGitHub {
+        owner = "kulp";
+        repo = "tenyr";
+        rev = "v1.0.0-rc2";
+        fetchSubmodules = true;
+        sha256 = "y5R6ttyi0g2StMWX+fPCmyzwRxPKNo5tEWfD3JM2l/w=";
+    };
+
+    buildInputs = [
+        cmake
+        bison
+        flex
+        SDL2
+        SDL2_image
+        verilog
+    ];
+
+    # TODO build with -DJIT=1 once lightning is not a broken package:
+    configurePhase = "cmake -DSDL=1 -DICARUS=1 -S . -B build";
+    buildPhase = "cmake --build build";
+    installPhase = ''cmake --install build --prefix "$out"'';
+}