Internet-in-a-Box (IIAB) 6.4 Release Notes...will later appear here:

   https://github.com/iiab/iiab/wiki/IIAB-6.4-Release-Notes

To install IIAB 6.4 (PRE-RELEASE) onto Raspbian Lite or Raspbian Pixel on RPi3:

   curl download.iiab.io/6.4/rpi/load.txt | sudo bash

That generally takes more than an hour.  This one's even faster
(typically less than an hour) if you don't need as many server apps:

   curl download.iiab.io/6.4/rpi/load-lite.txt | sudo bash

An Ethernet (live Internet) cable installed into the back of your
Raspberry Pi 3 is very strongly recommended during installation!

Full instructions here:
https://github.com/iiab/iiab/wiki/IIAB-Installation#do-everything-from-scratch

Consider a prefab image: http://download.iiab.io/6.4/rpi/README2.html

You might also consider our legacy approach: http://download.iiab.io/6.2/rpi/

Please also post your specific needs to our http://iiab.io discussion
forums where we aim to respond to all (conscientious) questions within
about 24 hours.  Thanks For Building Your Own Library To Serve All !

An especially big thank you to the many countries/communities who've worked
non-stop doing this, to bring about IIAB 6.4: http://wiki.iiab.io/6.4

IIAB Development Team
http://FAQ.iiab.io