[LtWorf]

But the result is huge, you cannot 3d print a custom case for that and put it somewhere at home…

[taffydavid]

You might be surprised how small a laptop motherboard can be. Once you take away screen, keyboard, battery, speakers, daughter boards and all that, you can have an actively cooled motherboard as slim as a pi and not much bigger.

If you need something really tiny, an esp32 can do a lot of what we used to use a pi for. Driving an eink display for example

[fragmede]

Could you 3d print a case for the usb dongle and the breadboard, and then Velcro that to the laptop?

[LtWorf]

I mean… yes… but you still have a laptop sitting there :D