I wanted to say, 5 watts, doesn't HL2 already run on Raspberry Pi? But then I realized, this thing seems to be powered by some kind of rpi?
https://www.clockworkpi.com/product-page/uconsole-kit-rpi-cm...
That's pretty cool though, do you have a video of it running on the device itself?
This is captured+streamed on the device with ffmpeg, but mobile phone video no.
Got a short of my own engine though: https://www.youtube.com/shorts/LKYX7E3A0Dk