I really like standard notes, especially the ‘rich markdown’ extension. The syncing is easy to set up and it’s FOSS and E2E encrypted. It isn’t as light as all the stuff listed here because it uses electron, but if you need to you can set up https://github.com/tannercollin/standardnotes-fs for syncing and edit notes in any editor you like.
I really like standard notes, especially the ‘rich markdown’ extension. The syncing is easy to set up and it’s FOSS and E2E encrypted. It isn’t as light as all the stuff listed here because it uses electron, but if you need to you can set up https://github.com/tannercollin/standardnotes-fs for syncing and edit notes in any editor you like.