[RReverser]

Don't know about webcams - usually (unlike in OP's case) those already have good OS-level support, but I did port gphoto2 to Wasm+WebUSB for access to DSLRs & mirrorless cameras: https://github.com/GoogleChromeLabs/web-gphoto2

[gregsadetsky]

Amazing, thanks for sharing

And really great write up too!

https://web.dev/porting-libusb-to-webusb/

[RReverser]

Thanks, be sure to check out the part 2 as well :)