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Simple: I don't collect data. Everything is stored locally, the site is 100% static, there are no analytics. Problem solved.

37signals has open sourced theirs here

It hasn’t been updated in a while but they are a good starting point.

Those look pretty good, I read through the privacy policy and it covers just about everything I would think of.

Still, if it is for commercial use I'd pass it by the lawyers to make sure it has been vetted.

I just use an LLM for the most part, give it a quick proofread, and publish it.