The problem, as I'm sure you know, is that a home server is not fit for purpose for the vast majority of people. Managing that is a fun project for some, but a complete non starter for most.
Synology makes the best home NAS hardware you can get. And they are still actively supporting decades-old units with DSM security updates and aren't stopping any time soon. They get it. And they get my money time and time again.
You can easily repurpose old drives for this. I started my server scavenging drives and using my laptop. I upgraded to some WD NAS HDD and I'm about to upgrade to a better Synology NAS.
There are options for people wanting to start hosting.