ROSA is a family of Linux-based operating systems for workstations and servers. The desktop and server product is offered on the website as ROSA Chrome and is built on a shared ROSA platform for creating operating systems. The distribution started as a fork of Mandriva Linux and has since been developed independently. The vendor offers the product for purchase and installation on the customer's own hardware.
The developer is AO NTC IT ROSA, a Russian joint-stock company whose website gives an address in Moscow. As a Russian company, the developer is subject to Russian law. For a European organisation, the origin and ownership of the developer are therefore the central sovereignty question. The distribution is mainly built from GPL and other free software, but the desktop editions include some proprietary components, so the product is not regarded as fully open source. The website does not describe a vendor-operated cloud service and does not state where data would be stored.