Beaglebone Black OLED 2864 SSD1306 Display how-to

I’ve got a beaglebone black and one of these 2864 oleds:

which uses the ssd1306, and I’m a bit new at interfacing with these displays.

I’ve done much searching already, seen related projects on github, adafruit site, etc.
but I’m using Gentoo instead of Angstrom, and there are some slight recipe variations I don’t fully grasp (unloading capes for instance).

Cluebat please…how would I best get from here to displaying values from (python) code?
``Adafruit_BBIO and spidev are installed (although this may be i2c?).