If it can be done via RSS, then an *arr tool can be developed. Unfortunately I'm not a coder 😓
I tend to grab releases that seem interesting to me (then buy the full game if I like it), but rarely install all of them. I'm more interested in the organization of the .zip/.iso I have laying in a folder, knowing what I have and what I should snatch.
It seems like you don't need an arr like tool for your use case. ARRs are designed to download targets that meet criteria, you're looking to download everything.
Instead it sounds like you are looking for a way to browse your downloaded games on a GUI like interface to help you pick which ones to install?
Breaking from if you need or need not an ARR; is your use case a GUI that lists your downloaded games and pulls the cards from IGDB.com?
"Fitgirl" bugs the fuck out of me. They repack everything in an executable installer? Fuck that shit. I've been running her 'installer' on a VM, and then ripping the damn NSPs out. Why the fuck won't they just distribute the NSP?
Does compression really matter when it's a torrent and you're just extracting the file anyhow? It's not your bandwidth, it's a conglomeration of everyones bandwidth, so you're not really having to deal with back end things like saving data.
I don't believe any of the commission methods you listed provide the same amount of compression as the tools used by some repackers.
I'm no expert. I believe UltraArc/FreeArc are what's used to get things down so small, and as far as decompressing goes I don't think support for those compression methods is baked in to your OS/WinRar/7zip etc.
Windows supports every single one of those compression methods that I just listed with maybe the exception of tar.gz -- so it's asinine that they package this way. You're just training idiots to pointlessly run .exe files on piracy sites - likely so in the future, when someone wants to - they release a popular game with their packaged EXE and throw everyone into a botnet.
The compression differences between arc and others are insignificant. On the orders of maybe 10's of megabytes. They are not making custom packagers, etc just to save 10 megabytes on a 7gb ROM.
You are a fucking dumbass, please just shut the fuck up. Don't download the repacks then, dipshit. The higher compression ratio is valuable for SEEDING, you know, the thing you should be doing with the torrents you consume. It also is nice to have a shorter download.
Also its clear the entire unpacking process is designed to be idiot proof. Hence the exe.