You are talking about a pretty dire need and a glaring vacuum in the market. While that's the best-case product market fit, it's not like a good execution for a

You are talking about a pretty dire need and a glaring vacuum in the market. While that's the best-case product market fit, it's not like a good execution for a moderate need in a contested space is not a thing at all. Can I live with text files in folders as my notes? Yes. Would I rather use something like Evernote instead? Absolutely. Would I use it if it gave me problems all the time? Doubt it.