A Linux installation, Ubuntu is recommanded (as "the author uses Ubuntu"). bash shell, for the command line interface (CLI). make, gcc,... to be able to build vasm Hatari, an Atari ST/STE/TT/Falcon ...
What's this all about? This is an experimental project at a very early stage, so don't get too excited at this point! There's been much debate over the years within both the Atari ST and Amiga ...