Sweet! If Tent folks are reading this you might want to update the last sentence currently on tent.io, "Tent will be released under an open license in the immediate future."
As mentioned, the software (tentd, admin, and status) are all MIT licensed and on github, as will be any libraries we create.
That (confusing) sentence refers to the specification itself for which we still need a permanent governance model and foundation to oversee its' development.
Thanks for bringing it to our attention, we'll try to clarify the language soon!
https://github.com/tent/tentd