I used to run Nextcloud. Nextcloud did a bunch of stuff I didn't need, is a larger attack vector and usually took an entire afternoon/evening every time I needed to do an upgrade. So far I spent less time setting all this up, and writing a WebDAV server than any one upgrade of Nextcloud took me.

Minio is zero-maintenance, if it needs an upgrade I just pull a newer Docker image. My WebDAV server is fewer than 100 lines of Go and extremely easy to maintain.