Cranelift never took off. Its weirdly bundled inside some adhoc wasm runtime, and is not a replacement for the "real" rust compiler.

Doesn't cargo nightly ship with the cranelift backend? You do need to mess with rustup and cargo a bit, but it's not very difficult to use.

I’ll honestly be surprised if Cranelift support ever gets stabilized. TPDE integration seems like something more likely to be eventually stabilized, although it is at an early stage right now.