Just put an order in on an EV. Looking at EVSE options right now and found OpenEVSE (https://www.openevse.com). Looks interesting, all parts and schematics and code is open. Home Assistant integration is available. There are apparently mostly happy users but we're way way down in the niche territory to really get a good idea of how good of a product it is so it still kinda feels like a crap shoot.