The game looks gorgeous. Though I was wondering, will there be any kind of route walkthrough made available? I'm just the type who likes to go through all the different endings without having to just guess my way through all of them if I don't have to.
There is an artbook and guide on
https://jastusa.com/games/opla002/speakeasy?variant=opla002_guide
and
backerkit has artbook, guide, Bartender Handbook,
Pinup Calendar, Printable Bookmarks, and a Printable Poster
If you bought your game on itch.io, then the PDF walkthrough is included in your purchase (even if you bought it before it was uploaded). Just go to "Buy Now" and you should be able to download it through there. Jast won't have this pdf available, instead what's offered there is the Digital Game Guide, which is an extra item for sale featuring the walkthrough and character art.