ACTION! Cross-Compiler by Jakub Husak
Jakub Husak has created a new ACTION! cross-compiler.
https://github.com/jhusak/atari_action_compiler
What makes this project special is that it is the original ACTION! compiler, which runs on a PC (Linux, FreeBSD, macOS, etc.) within a minimal emulator. This emulator does not simulate a full Atari computer, but only enough to run the ACTION! compiler. The ACTION! compiler can be controlled from the PC, for example, via command-line parameters.