Void is an independent Linux distribution developed in the spare time of a handful of developers. We do this for fun and hope that our work will be useful to others. Void is generally considered stable enough for daily use, and breaking changes are few and far between.
Some things that make Void unique in the crowded world of Linux distributions include our package manager, XBPS, which is developed in-house and is extremely fast. XBPS performs checks when installing updates to ensure that libraries aren't moved to incompatible versions, thus preventing a random update from breaking your system. XBPS is developed at https://github.com/void-linux/xbps/.
Void is also set apart from other projects by our first class support of the musl libc, which focuses on standards compliance and correctness. The musl libc allows us to also build very resilient systems as it is practical to statically link certain components on our musl flavors whereas it would not be practical to do so with glibc.
Along with our support of musl libc, we also use the LibreSSL libraries instead of the more traditional OpenSSL counterpart. LibreSSL developers have shown time and time again that they are dedicated to the security, quality, and maintainability of this critical library.
A final distinguishing characteristic of Void is our choice of program for init(8). Void Linux boots with smarden runit, a very small service supervision system. The small codebase of runit allows us to support a second libc without significant effort, something that would not have been possible with other options available today. You can learn more about runit on its website http://smarden.org/runit/.