Mailing the story:

Feng Office is an open-source collaboration platform written in PHP and it comes in three editions: Community, Professional, and Enterprise. We will install the Community edition which includes features such as task management, document management, workspaces, and a lot more. This guide should work on other Linux VPS systems as well, but it was tested and written for a Debian 9 VPS. This guide will walk you through the processing of installing Feng Office on a Debian 9 VPS.