1. SkalibsThe skarnet.org C system programming library
2. S6The s6 supervision suite.
3. skabusA collection of tools to implement a simple Unix bus. https://skarnet.org/software/skabus/
4. s6-dnsA complete DNS client library (synchronous and asynchronous) with related command-line tools
5. mdevdA kernel event manager compatible with mdev.conf