Looking for a new notes app that will sync with the notes that are stored with my email provider eg gmail and custom email provider. Similar to how the Apple notes apps work, but ideally cross platform (osx/win/Ubuntu). I’ve noticed there are lots of notes apps that use their own formats and data sources, but struggling to find something that will work without having to host another service or rely on Onedrive/Google/iCloud etc. Any recommendations gratefully received!