Just set up a network scanner — an old Canon that’s fully powered through USB, plugged into my OpenWRT router, which I configured to run
xinetd. Just because I had the scanner :D
By the way, looks like it’s also possible to connect to 6LoWPAN over Bluetooth LE on OpenWRT. I’d like to play with 6LoWPAN but ironically, the cheap & compact & low power DIY IoT thing, the ESP8266, uses Wi-Fi with WPA2. Even with EAP-TLS auth! Which is also a thing OpenWRT does.