Before discussing downloads, it is crucial to understand legality. Downloading WUP ROMs from the internet for games you do not own is copyright infringement. However, creating your own backups is generally protected under "fair use" in many jurisdictions (subject to local laws).

The homebrew scene is moving away from older CFW like Haxchi and CBHC toward . Aroma treats WUP installations differently: it uses an environment loader that allows for "plugins" and better support for forwarders .