Repos that are not addressing the web can get popular (at least by my terms), just not _as_ popular. I have:
https://github.com/SirCmpwn/TrueCraft - 724 stars
https://github.com/KnightOS/KnightOS - 513 stars
https://github.com/SirCmpwn/RedditSharp - 195 stars
Some of these have web parts (i.e. a website) but none of them are focused on the web.