Using hand gesture in my app with ml5.js

is there a way to use hand gesture in app inventor throught the camera
i've found this

with a webcam it's possible to retrieve the hand gesture
but how to make the same in app inventor.
and how to make it in an extension.
lot of work i think.. It will be really cool and bring many app.
it was just a reflexion

This should be ok with customWebview extension.

I will have a test.

I hope the test will be fine

Have you managed to make it work?

tested on the computer, not on cellphone. Since this need to connect to Internet, but i got problems to connect to this server on my phone.