Indeed. I run my gemini capsule off of a Raspberry Pi 3 using FreeBSD. The one thing about Pi's is that they sip energy. I was using about 2.4W, so I estimated

Indeed. I run my gemini capsule off of a Raspberry Pi 3 using FreeBSD. The one thing about Pi's is that they sip energy. I was using about 2.4W, so I estimated running costs at less than £7pa. I've no doubt that one could serve gopher pages using a microcontroller like the ESP-32. Gemini would be more difficult, due to encryption requirements. Readers may also be interested to learn of the Spartan protocol, which is basically Gemini without the encryption and a more flexibly upload option. Spartan hasn't really caught on yet, though. I've also heard of a protocol called Mercury, which I assume is similar to Gemini, but even simpler. I've not read up about it, though.