Pico – an open source content management system that is able to offer you a few of the most basic options.
It uses a flat-file database, and the tool is developed with PHP using. It’s simple – there is no installation file, and the application is ready for immediate use.
Content is stored in files. md. It also uses the formatting markup that can be edited with help of your favorite text editor.
To create designs / patterns in Pico engine design templates Twig is used, and it’s all very well documented.