How a local government migrated to open source: 
In 2015, the Eyüpsultan Municipality in Istanbul, Turkey, began a bold migration to adopting open source software. This involved several major changes: Linux on the desktop and major changes to the IT infrastructure, including a transition to the Zimbra email server and the PostgreSQL database.
read more: Opensource.com hguc
Supporting Open Source.
Have you tried: Sailing in Africa ?