I agree with @pink2ds -- if you want to learn HTML, it's always a good time, but if you write stuff in gemtext format, the pub will make it available both ways. I'll check out whatever you put up!
The problem here is I don't even know what gemtext means. So I'm not sure that I think me coding is such a great idea. Or rather, I think that would have to involve taking up an entirely new hobby to keep pursuing this weird little side project that really only exists to fill up my writing cup a bit.