Great point about paid plans. I didn’t look closely at the project today - they didn’t have any paid plans when I was first trying it in 2020 (and ultimately decided downloading the preferred source was good enough and abandoned trans-coding).
This is a more script based solution I’ve tried in the past for ongoing ISOs with decent results. Good luck!
To the point where a lot of gamers have paid for more games than they’d ever have time to play.