Gonna keep this one simple. It's a Raspberry Pi 1 Model A+ with an Adafruit TFT running the Video Looper software and some custom configurations for video output duplication and GPIO button control. Easy and effective!
Since this is actually an older video I made, I don't have all the specific details on how the configuration is set up.
:: Software ::
videolooper.de/
:: Parts ::
Raspberry Pi 1 Model A+: www.raspberrypi.com/products/...
2.4" TFT: www.adafruit.com/product/2455
Switches: www.adafruit.com/product/1489
Case: www.adafruit.com/product/2361 (Idk if they still carry the lid with the screen and buttons cutout)