I shared the author's frustration when figuring out how to ship such binaries to end users so I wrote a guide [0] detailing exactly how to do it. Apple's documentation is surprisingly poor and I couldn't find any blog posts so I ended up reverse engineering what works via trial and error as well as popular OSS projects on GitHub.

[0]: https://ofek.dev/words/guides/2025-05-13-distributing-comman...

I have also written some notes. They are a bit out of date, but might still be useful:

https://successfulsoftware.net/2018/11/16/how-to-notarize-yo...

https://successfulsoftware.net/2023/04/28/moving-from-altool...