haiku is an open-source operating system that specifically targets personal computing. inspired by beos, haiku is fast and easy to learn but very powerful.

sourceforge provides free & fast open source software downloads and development, and business software reviews and comparisons featuring the largest open source and business software directory.

discover tumbleweed and get the newest linux packages with our rolling release. fast! integrated! stabilized! tested!. discover leap and get the most complete linux distribution with opensuse’s latest regular-release version!

github is where over 100 million developers shape the future of software, together. contribute to the open source community, manage your git repositories, review code like a pro, track bugs and features, power your ci/cd and devops workflows, and secure code before you commit it.

debian is an operating system and a distribution of free software. it is maintained and updated through the work of many users who volunteer their time and effort.

freebsd is an operating system used to power modern servers, desktops, and embedded platforms.

stack overflow is the largest, most trusted online community for developers to learn, share​ ​their programming ​knowledge, and build their careers.