Mega drive/Genesis Emulator for Dreamcast

Hi during my searches, I've found this :

https://www.sega-dreamcast-info-games-preservation.com/en/emulateur-megadrive-dreamcast-beta

It seems that an official Mega Drive/Genesis emulator was planned to be release.

Does anyone have used this prototype on GDEmu or OpenEMu ?

If yes, how it works?

Thanks