Poet assistant maybe?

I haven’t tried the desktop app but the Android one works just fine - plus it comes with a ‘document provider’ so you can access files stored on your server via Android’s native files explorer app as if they were on your phone.

When I said Nextcloud-like, I meant in function and not philosophy. So Nextcloud-like in the sense that you can do file sync, auto uploads of videos/photos from a mobile device etc

Maybe you should give Ubuntu Server a spin. Last I tried, Nextcloud snap was the easiest way to get Nextcloud up and running.

Synology’s Download Station introduced me to emule. I don’t think there’s a more polished client for it than DS.