IBM i on modern Power machines is fine as far as performance goes. The hideous frontend of greenscreen RPG programs is optional, you could replace them with Ja

IBM i on modern Power machines is fine as far as performance goes. The hideous frontend of greenscreen RPG programs is optional, you could replace them with Java if anyone cared enough about UX for internal tools (they don't). The hard part with that stack is getting RPG devs - most of them are 50+ and expensive.