@realjenius
I've not digged into it, but yes you can. See https://standardnotes.com/help/47/can-i-self-host-standard-notes
For now, I only use the basic (free Standard notes, and I use it mostly as a quick scrabbling pad and not for longer and structured storage of notes. But I believe it is a serious alternative.
@hehemrin @zak I use Joplin as well as I was moving from Evernote, but I didn't see Standard Notes at the time. Is there a self hosting option for it?