Adafruit LCD backpack + ATtiny85

I've been researching this for hours and hours after I found a website where it looks so simple to do this:

I also found this page, which tells me nothing:

https://forums.adafruit.com/viewtopic.php?f=47&t=36829

Yes, so I want to connect a LCD display w/adafruit backpack to an ATtiny85. If this is possible (as it seems) I wonder why there are no schematics, videos, pictures etc. out there of this setup.

Anyone? THanks

I should mention that I tried the code on the first link, but I have no idea if it's working as my LCD display backlight won't turn on. I can't really see any characters either, which you can without the backlight (right?) I have tested every component separately, everything in working order.

My guess would be that the I2C LCD that GRobotronics is using is not the same hardware as the adafruit one. The adafruit forum you reference talks about how you would change the adafruit library to work with the TinyWireM library instead of the Wire library.

I would start by downloading the adafruit LCD library that supports their backpack. Get an example working on an Arduino UNO. Then replace Wire with TinyWireM and try it on the ATtiny85.