Install the Cyber CTF desktop launcher on Debian/Ubuntu (amd64):
sudo curl -fsSL https://cyber-courses.github.io/apt/cyberctf-apt.asc -o /usr/share/keyrings/cyberctf.asc echo "deb [signed-by=/usr/share/keyrings/cyberctf.asc] https://cyber-courses.github.io/apt stable main" | sudo tee /etc/apt/sources.list.d/cyberctf.list sudo apt update sudo apt install cyber-ctf
Source: github.com/Cyber-Courses/apt