Free open source office suite by @tdforg and a worldwide community. LibreOffice was based on http://OpenOffice.org. #foss #opensource
Check this out: the LibreOffice and openSUSE communities will have a joint conference next year in Nuremberg, Germany. And you can design the logo for it! Full details here: https://blog.documentfoundation.org/blog/2019/09/27/co-conference-logo-competition-for-2020/