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One thing i recently attempted (and still looking into it as i have time to work on it) was to do a usbip-bridge for webusb. The idea is using a device attached to user's machine and exposing it to a vm in cloud. There are various use cases for this.

So far - i could only bridge USBIP communication, not much success with binding a proxied usb to a vm.

Did you see something like this?

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I didn't see it but did think about it. I think it should be possible by wrapping WebUSB into something like Comlink, e.g. I know Surma experimented with allowing Comlink to be used with WebSockets: https://twitter.com/dassurma/status/1218207376899235840

Comlink takes care of the RPC part of any API, so you only need to choose and hook up a communication backend.

This is actually at a lower level. This is to bind webusb remote device as a virtual device in Linux. It would be more flexible and has very interesting use cases.

Ah, I see. That would be interesting, but removes the cross-platform compatibility from the equation, which, for me, is the most valuable piece of WebUSB and other similar APIs.

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