More about it is in the latest devlog. The current build should work on Mac, we have tested it on one machine, but I've heard of one other case of the VN not launching when NSFW patch was applied.
Right click and "Show Package Contents", Contents > MacOS > Dawn_Chorus to open app directly through terminal. A little janky to open but runs the same.
Menu pathway to open the game. If you find your dawn chorus app within the unzipped file, you can right click and show package contents to eventually click on the "Dawn_Chorus" file to boot the game up. Not sure why it's running that way, but it is openable