We have had ideas about how we could make content available on other platforms, but haven’t got around to implementing it, I’m afraid.
We do support Shortcuts. It should be possible to get all projects, and for each project, get the notes, and get the markdown or rich text of the note, and save that to some folder where you can serve it to yourself (eg web server).
The info is here: Agenda Shortcuts and Reference - #2 by mekentosj
You could write a post in the Shortcuts section of https://agenda.community asking if someone has already made such a shortcut and is willing to share it with you.
Kind regards,
Drew