The government of Mali (who controls all .ml domains) wanted their domains back. This forced the closure of any website using that domain and for them to reopen on a new domain.

A big issue was loosing all the .ml lemmy instances. I lost mine and had to create a new account. lemmy.ml is the only one that’s still up.

FPGAs are mostly proprietary products with proprietary technology inside. Many also have “hard” IP blocks for various things sometimes including a “hard” ARM based computer subsystem.

If you are getting one and flashing your own CPU to it it will be harder to attack, but definitely not impossible. There have been vulnerabilities in FPGAs before.