Tip: Looking for Debian packages? See there.
sudo add-apt-repository ppa:vriviere/ppa
sudo apt install cross-mint-essential
m68k-atari-mint-gcc hello.c -o hello.tos
sudo apt install cflib-m68k-atari-mint sudo apt install gemma-m68k-atari-mint sudo apt install ldg-m68k-atari-mint sudo apt install sdl-m68k-atari-mint sudo apt install ncurses-m68k-atari-mint sudo apt install zlib-m68k-atari-mint sudo apt install readline-m68k-atari-mint sudo apt install openssl-m68k-atari-mint