The HDMI ports you're not using for streaming sticks or video game consoles can be used to level up your PC or TV setup with ...
Mini Game Console utilizing the CH32V003J4M6 ultra-cheap (10 cents by the time of writing) 32-bit RISC-V microcontroller, an SSD1306 128x64 pixels OLED display and CR/LIR2032 coin cell battery holder.