Tenacity is an easy-to-use, cross-platform multi-track audio editor/recorder for Windows, MacOS, GNU/Linux and other operating systems and is developed by a group of volunteers as an open source software that respects user privacy. [Moved to: https://github.com/tenacityteam/tenacity]
Why do you think that https://github.com/LibreSprite/LibreSprite is a good alternative to audacity