My largest file transfer I have done via USB disk. You simply don’t transfer multiple terabytes over the net.

I use my former PC as the home server. It is probably 10+ years old, has no M2 slot or something, but an SSD for the OS. More than big and fast enough for all my needs: File service (Samba), Web service (apache2), Wiki service (mediawiki), Database (MySQL), Calendar service (Radicale), Project service (Subversion), and probably some others I forgot. All of it running on Ubuntu Server, aministrated by WebMin.

The only investment I did when I turned this into a server was that I put 2x8TB in it as a RAID for bulk storage - I dump the family PCs backups on that machine, too.

That is a big one. IoT lives off ESP32.

About everything about the Trum-Musk-Coup is taken from the Nazi playbook.

He is known to repeat his lies over and over again until people believe them.

No docker. Plain executable.

You need this for your family, and not hundreds of people? No crazy, outlandish usage requirements?

Then basically any PC will do.

I do regularly have issues with radicale, for years now. One is that it does not work properly after boot. I have to SSH in, kill the radicale process, and restart it.