You can get IBM i (OS/400) running at home, but the hurdles are many. You need to have one of a specific set of PowerPC servers and need to "acquire" an operating system image. Which will be running in unlicensed demo mode. This YouTuber did it.
It's long been said that the biggest obstacle to wider adoption of the AS/400 is IBM itself. They offer classes, but don't make it easy - you have to join COMMON (their user group) and/or be enrolled in a university.
https://www.youtube.com/watch?v=mUwJk81YatA
It's long been said that the biggest obstacle to wider adoption of the AS/400 is IBM itself. They offer classes, but don't make it easy - you have to join COMMON (their user group) and/or be enrolled in a university.
https://www.ibm.com/university/power/ibmi/