One of the first git tutorials I've ever used that did something along the lines "But wait, that's not a very good commit message. What does patch actually do? Let's write a better one" Very simple example but that level of care / attention to detail put a big smile on my face (especially as someone that's been teaching git for a year)
I went through the git module and plan on sharing this with my students for refreshing / getting an intro on some concepts.
I have learn through many tutorials, free and paid. Progate is better than every free tutorial right now and better than some paid too. I hope you keep building the site.
I have been in the ed-tech industry for the last 3 years and I can confidently say that no other service has the potential for mass adoption as this one - huge potential in the Indian ed-tech market too.