[pjmlp]

Pascal, these guys have options for almost all relevant processors.

http://www.mikroe.com/mikropascal/

Scheme, do people actually know how powerful RTL8710 is in regards to the computers used to create Scheme?

RTL8710 has a ARM Cortex M3 @ 166 MHz with 48KB available to user and 1MB flash.

Scheme was developed on the ITS OS, running on PDP-10, which could have up to 256 kilowords (not KB), and ran at about 30 MHz.

I am with you on Rust.

The majority of these tiny devices have more resources than 70's mainframes, that used safer systems programming languages.