Ask HN: What are you using for public documentation these days?

On a new side project I'm working on I need to have a fair amount of documentation for usage, implementation, options, etc. In the past I've used https://docsify.js.org hosted on Vercel, but I was curious if there is anything else out there people like. Looking for free or paid options. So long has I can host on a subdomain I'm indifferent.

Thanks!