EFB - Tablet creation

Hi, How can we create an EFB please ? Is it using HTML/CSS/JS or it must be
created using WASM ? Do you have some tips or documentation about this please
? Thank you so much.

Start here: https://microsoft.github.io/msfs-avionics-mirror/docs/intro

Hello @PESIM_Thomas, EFB are instruments created via WASM or HTML/JS/CSS so In
addition to davux3’s answer, you can also look at the documentation :
CREATING AN HTML/JS/CSS
INSTRUMENT

Regards, Boris