[1] https://2coffee.dev/en/articles/note-taking-app-notas

[2] https://2coffee.dev/en/articles/diary-of-making-notas-first-...

[3] https://2coffee.dev/en/articles/diary-of-working-on-notas-pa...

Not to discourage you from building your own, but Joplin seems to already tick all or at least most of your boxes -- in fact, I was surprised that it was was not addressed in the first article.

Excitedly awaiting for Notas.