This happened a while ago, but I figure I would make a follow up post now that I'm back on IH again.
I decided to switch jobs back in July of 2021. As part of that transition, my boss asked if he could purchase the app because we were using it a lot internally. We did a little negotiation and came to a number we were both happy with.
I'm not sure how long the revenue figures will stay up, but he and I are still on great terms and talk regularly so I've got a bit of insight into how things are running.
They have replatformed the app to run on Laravel Vapor and have onboarded an additional paying customer or two! It's not the primary money maker for them so growth isn't the priority right now.
Hopefully it stays around for a long time to come! :)