The system log daemon is responsible for providing logging of messages received from programs and facilities on the local host as well as from remote hosts.

The uiautomatorviewer tool provides a convenient visual interface to inspect the layout hierarchy and view the properties of the individual UI components that are displayed on the test device. Using this information, you can later create uiautomator tests with selector objects that target specific UI components to test.

Keychain is an OpenSSH key manager, typically run from ~/.bash_profile. When keychain is run, it checks for a running ssh-agent, otherwise it starts one. It saves the ssh-agent environment variables to ~/.keychain/\$\{HOSTNAME\}-sh, so that subsequent logins and non-interactive shells such as cron jobs can source the file and make passwordless ssh connections. In addition, when keychain runs, it verifies that the key files specified on the command-line are known to ssh-agent, otherwise it loads them, prompting you for a password if necessary.

Tcl is a powerful, easy to use, embeddable, cross-platform interpreted scripting language. This package contains the Tcl library and auxiliary code which allows one to run Tcl-enabled applications. This version includes thread support.

heartbeat is a messaging subsystem for high availability which implements serial, UDP, and PPP/UDP heartbeats.

This package contains oodles of routines that aid in controling docker.io over it's socket control, the same way the docker.io client controls the daemon.