A Mostly No Arduino ATtiny85 I2C LCD

This is hacked to all get out, but using some sometimes modded Arduino libraries as a start and info found all over the net, I finally managed to get my ATtiny85 talking I2C to a cheap I2C LCD. Why no Arduino? Because I want my own timer interrupts and the ATtiny Arduino core uses the timer(s?) I want to use for millis() stuff...

attiny85 i2c lcd

Here's some ATtiny I2C inspiration I found hanging around...