Where to ask ? Nextcloud plugin to manage notes from the web

Hello everyone, and thank you for this remarkable app!
I'm not sure where to request new features, so I thought I’d try here.
I already sync my notes between my three computers and my phone using Nextcloud, and it works great!
What I’m missing, though, is a Nextcloud plugin that would allow me to manage my notes directly from the web — ideally with the same design and user experience as the Joplin app.
Thanks again for your amazing work!
VinceK

There is a Joplin web app which you should be able to host on your server. It is currently work in progress I think. I'm not sure where are the instructions to run it, but here is the thread with information about what it supports: