GNU Hurd
In 1991, Linus Torvalds released the Linux kernel, and free software enthusiasts ported GNU's completed components to the Linux kernel in order to create GNU/Linux. NetBSD and FreeBSD were released a couple of years later, yet the Hurd was not in a functional state. Due to the presence of functioning alternatives, interest in the Hurd waned. As the FSF moved away from GNU development and more towards free software activism, Debian became more involved in the Hurd's development.