Recent discovery: forwarding serial ports over the network is pretty easy. Useful for embedded development!

For example, if you're working with an ESP8266 SDK in a Linux VM, but the device is attached to a FreeBSD machine: run something like doas python2 ~/ -p 8266 /dev/cuaU0 on the host and use something like rfc2217:// as the --port argument to esptool.

(Yeah, use that script. Other RFC2217 implementations don't seem to support binary mode for some reason.)

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