Looks cool, last post in 2022 though? Is it feature complete?

tl;dr: A kit for targeting several old or old-ish platforms, with code in some languages popular in the 1980s: C89 (ANSI C), Pascal, Modula 2, Basic. A 'kit' here means: frontend, codegen, support libraries and some tools. This is apparently known as being the default toolchain for Minix 1 and 2.

But - the repository is not "everything you need"; it actually relies on a lot from an existing platform - GCC, Lua, Make, Python etc. So, you would typically use this to cross-compile it seems.

Why the name amsterdam?

It's interesting that they have a Raspberry Pi GPU backend, but neither an ARM backend nor any modern ISA. (such as x86-64, Aarch64, etc.) Is there any example program that actually runs on the rpi gpu? I skimped the website, but it is only mentioned in the release notes.

I’m still making my way through the MINIX book. Love it.