Espruino on a handheld radio

I took a quick glance at FlashEEPROM, and it has many of the same problems as FAT... no wear levelling, no use of the ability to change any '1' bit to a '0' bit etc.

It actually does do that? If you change a value it re-writes a 0xFFFF to the address of the new value that replaces it? Wear levelling isn't in there because there's only one page used at the moment, but just using the pages in a circular buffer would work well for it.

Could not find a compatible version of nw.js to download for your platform.

Odd - you shouldn't need nw.js - the server itself should run without that. You only need nw.js if you're going to run the IDE as an app.

But as you say, if node-serialport won't work then you're probably out of luck anyway