| Operating system | Developer | First release | License |
|---|---|---|---|
| AOSC OS | Anthon Open Source Community | — | — |
| EulerOS | Huawei | — | — |
| GNU Guix System | GNU Project | — | free software license |
| Maemo Leste | — | — | — |
| NixOS | Thomas Tuegel, Eelco Dolstra | — | MIT License |
| Plan 9 | Bell Labs | 1992 | GNU General Public License, version 2.0, MIT License, Lucent Public License |
| Redox | Jeremy Soller | — | MIT License |