One of my favorite tools that shows what's possible: https://autotorio.com/example/outpost
No, don't say that :( I see way too many people that don't want to share their code because they don't think it's tidy enough or complete enough and that they just need to clean it up or adding some more features. But the thing is that they never get around to cleaning it up or adding those features and therefore they never share it. And often times I have seen this happen with stuff that is really good and usable.
"Perfect is the enemy of good" applies 100% in such cases.
Almost every Show HN has references to other similar works in the comments. The point is to have a good discussion and I think talking about similar works is highly relevant.