Augeas is a configuration editing tool. It parses configuration files in their native formats and transforms them into a tree. Configuration changes are made by manipulating this tree and saving it back into native config files.
Found on https://gitlab.com/uxrt/uxrt-toplevel/-/blob/master/architecture_notes

Calculate CRC, generate Verilog and C code (licensed under the LGPL) for the calculation.

Compression tool similar to gzip and bzip2, with better compression and speed than bzip2 at the cost of higher memory consumption (mostly for compression). From a GNU coreutils announcement.

Xynth is a portable embedded windowing system, client/server interface between display hardware (mouse, keyboard, video displays) and the desktop environment that works on many hardware, including embedded devices (handhelds such as PSP, set-top boxes, etc.)