I've tried, but the link at the top takes me to a login screen and when I try to log in, a popup with the message saying my "account hasn't been approved by an administrator" has prevented me downloading from the site. Aha, I just found the green download box at the bottom of the page.

It hadn't really occurred to me the difference in implementation of your decoder vs something like Hourglass until you spelled it out for me. I do ok following instructions but regarding hardware and software creation and implementation I'm fairly ignorant. Having now messed around with Zround, Next Level does seem rather simple in comparison. Still, I'll submit a request through their website and link your github. Maybe it'll encourage them to give your decoder a look.

I expect to have a Hackrf by mid February. I'm sure I'll have more questions. While I wait I'll try to get familiar with SDR. I'll probably order some OpenStint transponders in the next few days as well. I'm sure I'm not alone in appreciating how the affordability of this whole setup, especially sub $5 transponders, has the potential to benefit this expensive hobby.