Yesterday, I successfully defended my thesis The Low-Energy and Large-Scale Frontier of Dual-Phase Xenon Time Projection Chambers for Dark Matter Search. The talk and the exam went really great and my committee recommended my work for distinction. I thank my supervisor Laura Baudis for the unique opportunity to work with her, for teaching and pushing me and giving me the freedom to develop. Thanks to her and the other committee members for the great guidance. Afterwards, we had a great party with my old group and my family. I will miss you folks! (The PhD hat in the picture is the result of the great and dedicated machining work of my friend Frédéric Girard.)