Debian-based distribution with tiling window managers. Some of the features:

Stable and solid Debian base with some packages backported from Debian Testing; Fully pre-configured desktop based on a tiling window manager (or Wayland compositor); Fresh and stable graphics drivers (Mesa) backported from Debian Testing; Many device drivers and non-free firmwares are included in the base system; Included some performance optimizations as well as some system tweaks; Included additional repositories for installing programs not found in Debian, such as OnlyOffice, VirtualBox, Librewolf, Visual Studio Code and Brave; Ability to install additional software in the Calamares installer.