This project has been on the back burner for me for a bit so I still haven't finished writing up the manual, but in the meantime here's a list of a few example mappings with explanations, and a Google Sheets workbook with most of the complete mappings I've made for the deck. Those should give you some ideas of ways to use some the different game systems on the cards!
One note: the various symbols in the lower left corner of v1.3 don't have any mappings in those lists because I'm strongly considering removing them in the upcoming version. They were meant for games with odd distributions that don't really match any of the other ones, or for using it in a way that's kinda like the modifier deck/fudge dice/chaos bag from Gloomhaven/FATE/Arkham Horror: The Card Game. The issue is that I just haven't found many games that work well with it, unfortunately. Condottiere is pretty much the only one I've found that simultaneously only needs a few extra pieces beyond the deck (if you are already bringing the rest of the parts for Gloomhaven/AH:TCG, you're not saving any space by bringing this deck, haha) and doesn't map similarly well onto other parts of the cards.
Edit: One more note: The mappings listed there, while compatible with v1.3 for the most part, are intended for the upcoming version of the cards. Mappings that use the domino faces use different cards than they would in v1.3 due to the fact that I've moved all dominoes with a lower face of zero to the end of the deck to allow for easier sorting when playing games that use a triangular distribution deck.