The Beta has been open to the public since yesterday. I would love to find some people willing to give it a try. It might be able to simplify your invoicing workflow. I would really appreciate any feedback and am working on implementing feature requests as quickly as possible.
https://testflight.apple.com/join/aCCf242f
And, of course, in in light of today’s Digital Independence Day—100 % offline and from an independent developer based in the EU.