gcc VS nanopass-framework-scheme

It's called a compiler, Arduino IDE uses gcc.

You can use the website, on mobile or desktop. It works fine. I don't get why people think that if they can't use some 3rd party app to access Reddit they'll ... I dunno, browse the archives at gcc.gnu.org or something. There is nothing else like Reddit.

It even uses a completely vanilla C++ compiler, with avr-libc and Arduino's own libraries and framework.

It uses gcc

In this tutorial I'm using the GNU assembler gas with intel syntax along the the GNU linker.

But basically get yourself an editor (like notepad++ or VSCode) and a compiler (https://gcc.gnu.org). Write some code and compile it to an executable. There, you made a program.

I believe the make command is something that is included in the CS50 codespace only. You would need to compile your code using something else like gcc or another C compiler

Well, this compiler framework in scheme might be worth looking.

Some serious level Conway's Law. I mean multipass isn't bad. It composes well, it minimizes coupling, etc etc. It doesn't necessarily have to hit disk, any store could be used. I myself like multipass taken to an extreme in nanopass, but at the same time, I absolutely adore the single pass nature of Wirthian languages.

I am trying to use the nanopass framework with guile. I do not get that far :D I can't seem to figure out how guile's %load-path works.

I'd say Rust is the absolute best (by a considerable margin) for a production-ready implementation. For a compiler's course it should be a fine choice, but I'd also look at OCaml+Menhir or Scheme+nanopass as alternatives.