Endless OS is a Debian-derived Linux distribution designed to work offline on affordable PCs. It ships with preloaded offline content that needs no internet connection, along with features such as parental controls and virus protection. The system is built on the Linux kernel and open-source technologies such as GNOME and Flatpak, and it is offered through Endless Access, the non-profit arm of the Endless organisation.
The developer is the Endless OS Foundation, a non-profit that emerged in 2020 from the company Endless Mobile. The foundation's headquarters is in San Francisco, in the United States. The developers publish their open-source components and forks on GitHub. For a European organisation this means a US non-profit project: the origin of the code is transparent, but governance and the legal framework sit in the United States. Anyone considering the system can check the licences and maintenance status of the individual components in the source repositories.