RetroPie, as would I, so I downloaded that and set it writing to the SD card whilst we finished the build. You also need a power supply, and one of the official 2.5A power supplies is recommended.
hdmi_force_hotplug=1' in the config file fixed it. Right, it's booted, time to run the script to install the Pimoroni settings.
If you want to support this blog, you can donate via Patreon or Paypal, or buy something from my store.