Comment by littlesnitch

I'll post in our blog about the development background later. The Linux version shares no code with the Mac version. Only concepts. It's written in Rust and JavaScript (for the Web UI).

Our site is primarily aimed at Mac users, and most visitors skim rather than read carefully. If the Linux package were more prominent, Mac users would likely click it, struggle to install it, and blame us for the confusion.

And regarding your third question: No. The decision was made when I wanted to run it on our headless servers.