Twake is a great alternative to Microsoft Teams. It's an open source project with some free features: try it!
Tag: collaboration
Helping open source projects without knowing how to program
Is it possible to help open source projects without knowing how to program? Absolutely yes! Indeed, everyone's collaboration is fundamental.
Wikipedia
All the power of Wikipedia in a very useful open source application, free and usable even offline! Ideal to have on your mobile phone.