Mail isn't documented as a requirement, but the first item in the Requirements section is "macOS (uses launchd for scheduling and Messages for iMessage)".

Is Messages to automate responding to broker texts or just for notification?

The mail app is a native Mac app but it can use any email account. It's an SMTP/IMAP/POP client.

True. But Apple also enshittified the UI and they had an unforgivable data loss issue with Mail back in the Catalina days, which is why I switched to Thunderbird and haven't looked back.

They probably built it just for themselves. More the first person in the post title.

Given oop info I can found online, they built it to advertise themselves, I think show hn would have been much more appropriate

Mac in requirements is wild tho

If it was windows or Linux only I feel like no one would bat an eye. Plenty of software is OS dependent. Am I missing something?

I do think they should’ve put that in the title, however. Save a lot of people time

I agree with you for the no one would bat an eye had it been windows or linux

I do find the project cool, just a bit too sensationalized given the title

There are "show hn" submissions for things that people just want to show off multiple times a week.