Wow! Awesome! I came back to work on all this stuff. Albertinjo helped me with some equipment and I'm waiting for an Inhaos display (accidentally ordered a 3169 something instead of 7775 XD). He'll solder some headers for the adapter for the flex cable for the XMEGA's external bus interface and I'll be able to connect a display there after I port the graphics library that I have. I tested that old ST7775 display on an Arduino Mega, but it is dead Also, the stupid display requires 5V for the backlight while the whole microcontroller must be on 3.3V. WHAT WERE THEY THINKING!? *mimmicks AVGN*. I got my Arduino Mega 5V board running at 3.3v and because of that, I have 3.3V at my 5V pin so I'd have to manually wire everything and then use external 5V to do the thing. I might get my own Arduino Mega from Inhaos which has a 5V/3.3V switch. Maybe that's the board for which this display was made.
Also, I tried buying Teensy 3.6, but the shipping is gigantic! However, I see many ESPs being in use so I might have some use from that. I'm not entirely sure. ESPs are like a few dollars on eBay so I can make easy prototypes. However, the first thing I want to do is revive my XMEGA and make the best of it! LONG LIVE XMEGAS!