Page doesn't seem to be all-inclusive in vein of
awesome lists (such as github:schemedoc/awesome-scheme) but concentrated to author's own projects (Gauche and apps/libs). And maybe doesn't get updated beyond those (e.g. Bigloo homepage has been moved to
https://www-sop.inria.fr/indes/fp/Bigloo/ years ago; probably before Chez became open which may be another reason it didn't made it to the list).