AO RTOS is small real time OS based on Active Object concurrency model
AO-RTOS is a pure object-oriented small footprint real-time operating system for embedded devices. The project is using Active Object (or Actor) concurrency model and finitestate machine (FSM) design template as implementation base.
FAIN SNAP provides an active network programming language and interpreter. It allows finitestate machines to be operated over a number of network elements. Its main use is to program firewalls and raise alerts. It is a native Debian distribution.