While I'm not sure it runs afoul of the Show HN rules linked, it may given the referenced repository[1] isn't public. The linked repository from this post[2] and the YouTube video[3] might be sufficient.
But I agree it's a little disappointing to not see the code behind the demo.
But I agree it's a little disappointing to not see the code behind the demo.
[1] https://github.com/benb0jangles/EZ-TRAK.git
[2] https://github.com/benb0jangles/EzTrak
[3] https://youtu.be/2A2lW0ONNiE