Similar to RPM_Package_Manager

Arora (web browser)

Asahi Linux

AviSynth

AxKit

Free Software Foundation anti-Windows campaigns

Ballerina (programming language)

Banner (Unix)

Berry Linux

Bitstream Vera

Blackbox

Brackets (text editor)

BSD licenses

Cacti (software)

Calligra Sheets

Azure Linux

Ccache

Cdparanoia

Cdrkit

Coccinella (software)

Conkeror

Cooperative Linux

Coreboot

Cowsay