[P_I_Staker]

Is rust interoperable with C and ASM? I would think it'd have to be. Some of those things (all of them?) are considerations the system designer needs to worry about regardless.

It seems like you should be able to still use most of the stuff provided by the toolchain in a similar fashion. That said, trying to do a native implementation by porting the code, or just using a C/ASM bootloader could prove tricky for newcomers.

Bootloaders are often black boxes. It could be flashing something written in COBAL, and it would be none the wiser. It seems like rust would need to provide a mechanism for entry pointing. I don't know how to handle memory mapping and linker scripting in rust.

I'm not disagreeing that it could be a huge barrier, but theoretically it doesn't have to be that much, or at least most of it is stuff you'll often be dealing with anyway.