# How-to BigBlueButton
Welcome!
For this event we are using an open source video conference tool called **BigBlueButton**, hosted on the server of [Constant](http://constantvzw.org).
You can use the platform in your browser, on your computer or mobile phone. If you use Safari as a browser, you might encounter some issues.
Here are some tips to start:
When you enter you will get this message: How do you want to participate? Choose the microphone and test your sound:

You will still be muted, so if you want to say something, click on the microphone:

Your camera will not be automatically shared. You can enable the camera with this button (you might need to accept multiple times):

If you want to make more space for the videos, you can minimize the presentation in the middle:

If available, you can select Closed Captions here:

More about why you should consider BigBlueButton and other non-extractive platforms:
* [Infrastructure Solidarity](https://constantvzw.org/documents/bbb/Infrastructure_Solidarity.pdf) (column, 2021)
* [Dear student, teacher, worker in an educational institution,...](https://constantvzw.org/wefts/distant-elephant.en.html) (open letter, 2020)
* [There is an elephant in the room](https://constantvzw.org/wefts/distant-elephant.en.html) (open letter, 2019)