Successfully deployed an MLB LED scoreboard emulator to Fly.io using Docker, exposing RGBMatrixEmulator on port 8888. Built on hzeller's rpi-rgb-led-matrix library and works great, but cost optimization needed due to heavy WebSocket traffic streaming raw frame data. Offers live MLB games and WBC-specific support (wbc.mlb-led-scoreboard.dev). Pattern reusable for any project using the rgb-led-matrix driver.