Bonjour @Alexandra,
We are busy preparing the webinar, here is the material you can browse in advance to be better prepared.
- The agenda
- The pre-recorded presentations (5 minutes) with slides when available. There currently is just one but there will be at least one more by the end of the day.
I confirm that we will meet to prepare and answer your questions
9am UTC+1 January 19th, 2022 at Jitsi Meet
All presentations (around 5 minutes) will be delivered in English, which is good news for you because it definitely is the most challenging part 
There will, however, be people asking questions or sharing ideas in their native language afterwards and this is where your help will be needed. In other words, you’ll be able to relax while the presenters are talking and you’ll need to stay alert when the webinar audience starts discussing.
At the beginning of the webinar each person willing to benefit from simultaneous translation will say so explicitly so that you know who will require your attention. Realistically I do not expect this will take more than a few minutes of your time during the entire webinar. But these minutes are crucial to break the language barrier: they will be recorded and shared publicly to encourage more people to join and benefit from simultaneous translation during the next meetings.
Very much looking forward to working with you tomorrow!