Slackware is a Linux distribution whose stated goals are ease of use and stability. It was first released in 1993 and is led by Patrick Volkerding, who also holds the Slackware trademark. It is a complete multitasking UNIX-like system for desktop and server use, available in 32-bit and 64-bit versions, with web, FTP and mail servers included and a choice of desktop environments.
Slackware is distributed as installation images that you download and install yourself, mainly under the GNU General Public License. No vendor-hosted service or customer data is involved: the system runs on your own hardware or virtual machines, in any location you choose. Updates and the installation media come from mirrors, and the source code is available. For a European organisation the main considerations are therefore operational: staffing and patch discipline, with support coming mainly from the community.