Sounds just like git (unless you do some special operations to change the copies)

Isn’t that just git with more steps and harder to share?

Learn to get around on foot, bike, bus, tram, etc. Find out what kind of ticket is good for your. In German cities the public transportation is relatively good.

Also on sundays nearly every normal store is closed, only restaurants and some other stores like gas stations are open.

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I planned to use nfs, since it is one of the options of TrueNAS and it works on both windows and linux.

It will be used just for file storage. But what exactly do you mean by “lighter hardware”? april said anything more than a raspi, so better than the quad-core Arm Cortex A76 processor @ 2.4GHz from the raspi 5? (ik that truenas is for x86 and not arm)