FireSessions is a PHP library for sessions management, with a nice API interface and custom session handlers for Redis, Memcached and local filesystem.
It is available on GitHub and can be installed via Composer.
Notițe Matematică 7+ is a local project we are working on, to provide the scholars from 7th grade from Romania a better approach at learning the Math subject.
Two sample lessons can be browsed here (in Romanian language).