Everything old is new again. OK, I just said that to sound fancy. Actually though, the Project TouCans CW histogram , (you know for measuring the consistency of your dits and dahs while sending Morse Code), uses WebUSB and Web Audio , (respectively), to implement a connection to the serial port, where it listens to a Halikey, and to generate a sidetone. That's the old part. Here's the new part, (to me anyway). It turns out both of those web capabilities are either documented by or a result of something called Project Fugu . I stumbled across the Google Develper site while browsing, (pun totally intended), through the extensions in my Chrome browser. It turns out Chrome Apps are going away, (finally a Google technology I didn't use is disappearing), and should be replaced by, (in Google's estimation), Web Apps, (which are referenced as Progressive Web Apps by Google Gemini.) The capabilities available are pretty cool and include Web Bluetooth and a File System...