The only thing the AIO is missing is #5, and you can probably mount an S3 bucket on the docker host and set the environment variable in the docker-compose.yml accordingly.

I've used NC for a long time now in virtually every configuration available from bare metal to snap to NCP, the AIO is by far the easiest thing I've ever used to set up and maintain Nextcloud. I wouldn't be climbing into bed with a proprietary oriented company instead. They will eventually fuck over the users, count on it.

Nextcloud Docker compose https://hub.docker.com/_/nextcloud/

I don't do much maintenance on my nextcloud image either. I spend a lot of time setting it up on bare metal because I didn't know docker compose existed but it's very popular nowadays. With docker compose you don't have to setup a lot either. It didn't break for me once in the past years.

What's wrong with nextcloud's S3 object storage?

Not really what you are asking for, but I found the combination of KaraDAV and Filestash to be a great alternative to Nextcloud, and much more stable for basic use.

As for Owncloud... I am skeptical of the company behind them ever since they split off into them and Nextcloud. Probably better to avoid, regardless of what you think of Nextcloud.

Just to throw my own experience in the mix. I tried the AIO and standard versions of Nextcloud and found them to be flakey and slow. But I felt compelled to keep trying. That's when I found NextcloudPi. I've installed it on a Pi4 running from an external SSD and it's been rock solid. I believe that version is no longer in development though and I primarily use it as a sync platform for various apps rather than using the web apps directly.

And just to be contrary, have you looked at Seafile? It's stupid fast and stable but some features are hidden behind a paywall if you have more than 3 users (community vs pro). Their documentation is poor, and the data is stored in Git-lik chunks on the server. All of which can be a deal breaker for some. The external storage feature works, but for a newb like me, it was a bear to get running.

OCIS is bad for third party integration. OCIS force the use of OIDC with no workaround since the launch of OCIS few years ago.

For example, owncloud claims that it can integrate with rclone. Owncloud suggest the use of OIDC-agent which is very complicated. It also suggest enable the use of Basic Authentication which is bad for security.

They are working on the ability to create app password but the progress is very slow. Related GitHub issue here.

No idea at all, but I am highly interested in your experience. So it would be great if you could came here back to share it with us

For what it's worth, I do think OCIS is worthy of switching to if you don't make use of all of the various apps Nextcloud can do. OCIS can hook into an online office provider, but doesn't do much more than just the cloud storage as of right now.

That said, the cloud storage and UX performance is night and day between Nextcloud/Owncloud and OCIS. If you're using a S3 provider as a storage backend, then you only need to ensure backups for the S3 objects and the small metadata volume the OCIS container needs in order to ensure file integrity.

Another thing to note about OCIS: it provides no at-redt encryption module unlike Nextcloud. If that's important to your use case, either stick with Nextcloud or you will need to figure out how to roll your own.

I know that OCIS does intend to bring more features into the stack eventually (CalDAV, CardDAV, etc.). As it stands currently though, OCIS isn't a behemoth that Nextcloud/Owncloud are, and the architecture, maintenance is more straightforward overall.

As for open-source: OCIS released and has still remained under Apache 2.0 for its entire lifespan thus far. If you don't trust Owncloud over the drama that created Nextcloud, then I guess remain wary? Otherwise OCIS looks fine to use.

I started and ended up bailing. The deciding factor for me was the way data is stored with OCIS (basically hashes), so backup/restore would be a much larger pain. So I'm sticking with Nextcloud as much as I hate PHP and dislike the performance issues.

Assuming you just want file sync and storage, if you can live without External Storage (having another SFTP/WebDAV/whatever backend), then I think oCIS is great for you. It also expect an OIDC auth provider by default - this guide helped me through. Note that you have to configure the S3 storage driver in oCIS and properly backup your buckets and metadata.

For Talk you can setup an internal Matrix and TURN server too. I recommend conduwuit if you want something lightweight, or Synapse (quite heavy) if you need OIDC integration.

I am considering switching as well, for similar reasons. What has been holding me back (besides missing time to plan and do the migration) is thst I don't quite trust ownCloud any more, and due to a lack of documentation, I would want to run it in parallel for some time to get the hang of it before migrating the other users (which adds to the time constraint).

I'll most likely deploy using their helm chart – does anyone have any real-world experience with it?

If I wasn't using so many other Nextcloud apps besides the file storage I would switch.

I had good and bad times with both. I am finally happy with "pydio cells"