For GMail sync someone else has already mentioned Lieer which is an excellent tool for robust two-way syncing of emails and tags/labels between Notmuch (and any

For GMail sync someone else has already mentioned Lieer which is an excellent tool for robust two-way syncing of emails and tags/labels between Notmuch (and anything that uses it) and GMail. It uses the GMail API so it doesn't rely on IMAP. https://github.com/gauteh/lieer https://github.com/gauteh/lieer