Welcome back @UlisesNightmare. It is so good to see you active again. The chapter is very good and I can't wait for more chapters to come. I'm very eager to read more of this story. I hope you are doing well and continue to write this story. I hope that your writers block will go away and get inspired.
P.S: if you want inspiration, then watch or research:
For technology-based ideas: metal gear rising revengeance (video games), cyberpunk edgerunners(anime), armored core(video game), evangelion series (anime) and etc.
For fight scene choreography: Jujutsu kaisen (both the anime and manga), Sakamoto days (manga), and etc.
And have characters like Bazett Fraga McRemitz, fiore forvedge yggdmillennia, olga marie animusphere, tachie (the type-moon's prototype of Mashu Kyrielight. (P.s: she looks like mashu Kyrielight, but with black hair, violet or red eyes, and has a history with shirou emiya.)), Sella von einzbern, leysritt von einzbern, and many other characters who are not in chaldea, as yorha androids. I'd love to see Chaldea's reactions to them.
P.P.S: if you have trouble writing or don't have time, then you can always ask help or collaborate with others wattpad writers to help you with your stories and research on the things you need.