HOWTO: make Jigdo use local APT cache

If you like to build Debian install CD images with Jigdo (i. e., with jigdo-lite), you may consider using packages from your local APT cache to save some network traffic.
To make it easily selectable from the Jigdo interface, make sure to add the following line to the ~/.jigdo-lite config file:

scanMenu='/var/cache/apt/archives/ /media/cdrom/'

BTW: /var/cache/apt/archives is a local APT cache directory (containing already downloaded DEB packages); /media/cdrom is a standard CD mount point, so you can reuse the files from the mounted CD image you've previously generated with Jigdo.

References:

1. More About Scan Sources - Debian Jigdo mini-HOWTO