cloc counts blank lines, comment lines, and physical lines of source code in many programming languages.

inxi is a full featured CLI system information tool. It is available in most Linux distribution repositories, and does its best to support the BSDs.

ack is a grep-like search tool optimized for source code.

Official apt-mirror source.

print I/O activity of process, files, or network.

[wip] package search website for raspbian-addons