[nyanpasu64]

> Using `unsafe` to meet a deadline makes 0 sense... would never pass a code review.

I've seen unsound unchecked casts from &UnsafeCell or *mut to &mut in multiple codebases, including Firefox itself: https://github.com/emu-rs/snes-apu/blob/13c1752c0a9d43a32d05..., https://searchfox.org/mozilla-central/rev/7142c947c285e4fe4f....