External resources
Since a Bisquixe game is a web page, it has access to external files that the typical Inform game does not. A compiled Inform GBLORB contains within it specified images and sound files, for instance. In fact, a GBLORB has very limited access to the world beyond its walls. It can save and restore games, write transcripts, and read or write to external text files.
Bisquixe can do far more than that. It can access external images, sounds, and fonts. It can also link to external files, such as walkthroughs or feelies.
These features bring new organizational requirements, of course. To avoid deletions and other mishaps, copies of files really should be maintained outside of the release folder. A new folder in the project’s materials directory seems a natural fit, though the author can and should use whatever system works best for them.