I'd like to see this in the launcher.

I have a few suggestions for significant improvements to the Launcher:
1. That in the json file with sources people could add a link to the game page or a link to a txt file (if a txt file, you can make it open directly in the Launcher), so that when selecting a download the user can see installation instructions or something else.
2. Make it so that at least via torrent you can do multiple downloads at a time.
3. Make it so that when downloading a torrent you can choose which files you want to download and which you don't.