Ex Nihilo: Sequentia is a modern port of Ex Nihilo: Creatio for 1.12, which in turn was a fork of Ex Nihilo: Adscensio for 1.10, which was a continuation of Ex Nihilo for 1.7.10.
Ex Nihilo: Sequentia is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International license (see the license file)
The Crushed Sky Stone texture is derived from the Sky Stone texture in Applied Energistics 2, and is thus licensed under CC-BY-NC-SA 3.0. The original texture was created by AlgorithmX2 et al. And is used with attribution in line with the license.