[pjmlp]

In fact, in what concerns most of the languages, they scale down to computers much weaker than most of my 1990's PC desktops.

Some examples, one per language, there are others I could list.

https://www.wildernesslabs.co/

https://tinygo.org/

https://www.ptc.com/en/products/developer-tools/perc

https://www.swift.org/get-started/embedded/

https://wiki.dlang.org/Programming_in_D_tutorial_on_Embedded...