I really like this game for its unexpected ominousness. It's interesting enough to keep you wanting to figure out how it works, but not in a frustrating and arbitrary "where the fuck do I go" kind of way. Pretty sure I ran into a bug though, since I ended up opening the door after some time, but now it's stuck at the text "is it done". It also keeps making the door squeaking sound when I scroll away from the screen (as in down to the comments)
Edit: I don't know how the divergence happens, but I'm pretty sure I got all three endings now. I got the complete wait ending twice, but I didn't get either medals for getting it or doing it without drinking. The first time one of the scripted shadows disrupted the ending scene, but I don't know why it didn't trigger the second time. Still, solid game overall.
Edit edit: All right, the complete wait ending triggered the third time now! I'll be keeping my eyes peeled for that secret you mentioned. Looking forwards to your other stuff!