OnlyOffice Community Server is a great self-hosted open source alternative to Google Docs or Microsoft Office 365.It can be easily installed with Docker (https://helpcenter.onlyoffice.com/server/docker/community/docker-installation.aspx#AlternativeInstallation).However, you might want to add a valid certificate to enable HTTPS connections on your OnlyOffice instance, and you might want to use a LetsEncrypt certificate.In that case, here is a tutorial… Poursuivre la lecture How to configure HTTPS with a LetsEncrypt Certificate on OnlyOffice Community Server for Docker