Attiny85 and MCP4725 DAC

Hi guys,
Any guidance how to wire and run MCP4725 with Attiny85 ?

I want my little tiny to have external DAC and still to have one analog input .

I found a way to do it with Arduino but it seems that the library will not with with attiny

The reason for using DAC is that the PWM will not work for my application

See the data sheet for typical applications/connections.

An I2C interface must be configured on the Attiny, for communication with the DAC.