@aureliengrare maybe you should have post this with an English description.
For non-French speakers: Frichti seems to be somewhere in between Spoonrocket and Take-eat-easy/Deliveroo on food delivery.
There is menu of the day, but not fixed, so you are free to add all the options you want.
It's not instant, 40min for average delivery time. Only available in Paris at the moment.
Typeform