Installing Themis from packages # Installing Themis Core # The core library is available via Cossack Labs package repositories. Follow the instructions below for your operating system. In case you experience issues during installation, refer to Troubleshooting installation page which contains the wisdom of ages. Debian, Ubuntu # Supported systems: Debian 10 “Buster” Debian 11 “Bullseye” Debian 12 “Bookworm” Ubuntu 20.04 LTS “Focal Fossa” Ubuntu 22.04 LTS “Jammy Jellyfish” ...