watchdog

system health checker and software/hardware watchdog handler

The watchdog program writes to /dev/watchdog every ten seconds. If the device is opened but not written to within a minute, the machine will reboot. This feature is available when the kernel is built with "software watchdog" support (standard in Debian kernels) or if the machine is equipped with a hardware watchdog (in which case this package can also be used to "pet" it, resetting its timer). The kernel software watchdog's ability to reboot will depend on the state of the machine and interrupts. The watchdog tool itself runs several health checks and acts appropriately if the system is not in good shape.

picolisp

Lisp interpreter and application server framework

Pico Lisp can be viewed from two different aspects: As a general purpose programming language, and a dedicated application server framework. As a programming language, Pico Lisp provides a 1-to-1 mapping of a clean and powerful Lisp derivate, to a simple and efficient virtual machine. It supports persistent objects as a first class data type, resulting in a database system of Entity/Relation classes and a Prolog-like query language tightly integrated into the system. As an application server framework, Pico Lisp provides for database management (including multi-user synchronization, DB garbage collection journalling and replication), web interface integrated (and generated from) the application data model, and an application server.