Run cmake-init and setup flake.nix and default.nix

default.nix

@@ -0,0 +1,20 @@
+# https://github.com/nixvital/nix-based-cpp-starterkit/tree/main
+{
+  pkgs,
+  stdenv,
+  lib,
+  ethercat,
+}:
+with pkgs;
+stdenv.mkDerivation rec {
+  pname = "ec-controller";
+  version = "0.1.0";
+
+  nativeBuildInputs = [ cmake ];
+  buildInputs = [ ethercat ];
+
+  meta = with lib; {
+    description = "Servo controller for Screenhouse machines. Uses ethercat.";
+    platforms = platforms.linux;
+  };
+}