Seafile ‘scrambles’ files and doesn’t make them available to other applications on the host, which I don’t think OP wants.

I’ve got two JetKVM units on the way.

TinyPilot and PiKVM are just way too expensive in Australia. Buying two would cost me about $1000 AUD, but two JetKVMs are only $260 AUD.

I have my storage mounted from my NAS using NFS and this is added to Nextcloud using the External Storage plugin. Works great.

Nano is more like fast food. It’s easy and convenient, but it makes you feel a little guilty and dirty afterwards.

The next release of TrueNAS SCALE in October is dropping Kubernetes in favour of plain Docker/Docker Compose. That may be worth a look?