Ficl (Forth inspired command language) is an ANS Forth interpreter written in C. Unlike traditional Forths, this interpreter is designed to be embedded into other systems as a command/macro/development prototype language. Ficl provides object extensions that can be used to wrap methods and structures of the host system without altering them.
Gircap is a set of tools to help you use the widely unknown "capabilities" that Linux has in place of conventional Unix superuser privilege. That means you can give programs and processes only as much privilege as they need and greatly limit your security exposure due to system bugs. A Linux kernel patch fixes some basically broken aspects of capabilities. setcap and getcap let you set and show capabilities of a running process. capexec runs a program with certain capabilities, UID, GID, and supplemental GIDs. It can be used to have init start a daemon with only a subset of init's privileges. binfmt_capx is an executable interpreter in the form of a loadable kernel module. It lets you do a setuid kind of thing for files, only with fine grained capabilities. This is a cheap substitute for real "file capabilities."
Hot Copy creates an instant point-in-time snapshot of any block device while the system is running without interrupting applications or requiring the use of LVM. As block level changes are made to the real device, hot copy makes a backup copy of the changed block. The changed blocks are efficiently stored in unused space on your hard disk. These stored changed blocks maintain a point-in-time snapshot and space is only needed when you make changes to the real device. You can even write to your snapshots.