Use pkgin para instalar paquetes

: Refresh the pkgin database with the latest version
$ sudo pkgin -y update

: Search for a package.  Regular expressions are supported.
$ pkgin search ^ffmpeg[0-9]$
ffmpeg4-4.1.1   Decoding, encoding and streaming software (v4.x)
ffmpeg3-3.4.5   Decoding, encoding and streaming software (v3.x)
ffmpeg2-2.8.14  Decoding, encoding and streaming software (v2.x)
ffmpeg1-1.2.12  Decoding, encoding and streaming software (v1.x)

: Install a package without prompting
$ sudo pkgin -y install ffmpeg4

: List all available packages
$ pkgin avail

: Upgrade all installed packages
$ sudo pkgin -y upgrade

: Remove a package
$ sudo pkgin -y remove ffmpeg4

: Automatically remove orphaned dependencies
$ sudo pkgin -y autoremove
Zaphod Beeblebrox