SQLite is one of the options evaluated in the article. I haven't considered it because I feel that it's a proprietary format, and also because I haven't read up

SQLite is one of the options evaluated in the article. I haven't considered it because I feel that it's a proprietary format, and also because I haven't read up on its improvements in the past ~decade. My view is still that SQLite corrupts easily because people were treating it like a proper database and doing multithreaded reading/writing, but in reality it's a different thing that doesn't quite work that way.