1. Why an ESP32? Its a bit of an odd duck I would think. Can it withstand a month of DNS bombardment from your phone?
2. As the wifi credentials are part of the code, and its set up as a station, this is only going to work at home without port forwards? Leads me back to point 1 sort of. Its an ultraportable lightweight DNS server you need to recompile to move.
Its a cool implementation it just sort of comes off as a solution seeking a problem.
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