A very common pattern is something like a link to a github page where the readme describes the thing generally and a short (can really be down to a sentence or

A very common pattern is something like a link to a github page where the readme describes the thing generally and a short (can really be down to a sentence or so) Show HN description that's addressed to HN readers, something like 'I've was interested in/wanted to build/etc X, and made this over the last few weeks'. It does enough to set expectations, describe the motivation and tell everyone you're around to respond to feedback. But there's really not much reason to think about this too much, just go ahead and post your thing with whatever description (or none) you want.