GitHub's Open Source Guidelines are chock full of good advice: https://opensource.guide/best-practices/
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I have a bunch of open tasks on my GH repos, so I tried asking ChatGPT and Claude to write a card-based web UI that showed some random open issues.
ChatGPT gave me something that worked, but the Claude mock-ups look better (and render inline!).
On the challenge of writing accurate source spans on Unicode source code: https://reedmullanix.com/posts/unicode-source-spans.html
Also (see footnotes) a fair number of LSP clients assume UTF-8 despite early versions of LSP mandating UTF-16!
It's weird that GitHub shows time since the last commit, but not time since the first commit. It's a nice way of seeing how mature a project is.