I modded several PS3s back in 2019-2020 and flipped a few on eBay before they cracked down. I really enjoyed taking them apart, cleaning, putting new thermal paste on, etc. Never successfully delidded one, that was always the ultimate challenge in my mind. The last one I did was a gift for my son-in-law back in 2022 ish. I had always loaded games the standard ftp routes, etc. but the one i prepped for him, I experimented with the app linked below - on the playstation 3 itself and it was phenomenal... direct download and install directly from the PS3 itself. Including games, addons, etc.
https://github.com/bucanero/pkgi-ps3
also, NoPayStation https://nopaystation.com/
https://github.com/DrewLiveTemp/DrewskiTemp24/
Was just curious so I used WaybackMachine on the original github link and found a link to his Discord... the replacement URL was there - I haven't looked at it in detail, so it may be in the process of being rebuilt. Use the WaybackMachine with the original URL and click on his Discord invite.