Ivory by Tapbots 
Psst…hey you…yea the one in front of the Mac. Go here: https://tapbots.com/ivory/mac/
Sorry about the short Mac alpha window yesterday. We ran into a TestFlight issue and are trying to get it resolved. We definitely want to allow more of you access to the Ivory for Mac alpha. Will hopefully have more info in a couple days. Thanks for your patience! 🙏
Simon Harper@ivory ooooh! Maybe a 10 minute warning at a time UK folks can get a chance of grabbing the beta please 🙏🏼
@simonharper We planned to split the release into opposite times of the day. But right now we just have to wait until this issue gets resolved.