Technology: From the Start, I Built a Rocket Engine by Hand in a Hardware Store

Pure Sci-Fi With Lots of Cutting-Edge Tech, A Complete and Rich Tech Tree, and War

Pure sci-fi with lots of advanced tech, a complete and well-developed tech tree, and warfare.

Hard Science Fiction That Goes Cosmic in Scale: No Mecha or Monsters, It Has to Be Hard Sci-Fi

It has to be grounded in reality or have a unique theoretical framework, like "The Galactic Empire" or "The Three-Body Problem"... but... it needs to have that web-novel feel... Aaaah, I’m so torn (๑•́ ₃ •̀๑). Cuties, please stop recommending "The Three-Body Problem"! I’ve definitely read a masterpiece like that.

Male POV, Scientific Research, Someone Protected by the State

Preferably with a child as the protagonist.

Looking for Tech-Focused Stories, Not Business Stories

I don’t want a story where the protagonist knows nothing, gets a System, and just pulls out one piece of black technology after another. Even if the System provides it, the protagonist should figure out the principles and how it works. Don’t recommend stories where the System just hands them a whole production line right off the bat.

Looking for Tech Novels About Taking Over and Growing a Family Factory

A rich second-generation heir.

A Novel Where Someone Orders a Model Plane but Gets a Real One Instead

I remember a novel where the protagonist wakes up to find that prices have dropped. They order a model airplane online, but an actual plane arrives. I think there were also livestreams where they helped people with relationship problems and did extreme parkour, and stuff like that. Does anyone know the title? Please help!!

Looking for Novels Where the Protagonist Makes or Modifies Weapons, Firearms, Gadgets, or Machinery

Any Tech Fiction About Building Rockets and Developing the Aerospace Industry?

Please Recommend Novels About Building Cars

An Industrial Audit Turns Up a Surprise. The Main Character Steps Forward: “With Me on the Job, You Can Count on Our Technology.”

Looking for books similar to Industrial Survey: An Unmanned Bomber Delivering Packages? Private-sector companies with cutting-edge tech.

The Protagonist Starts a Company and Develops Black Technology

Nothing mindless.

Looking for Stories Where Everyone Thinks They Are Being Strangled by Foreign Technology, but They Have Actually Put Their Sweater on Backward

I'm looking for high-tech stories where a private company quietly advances technology while the country thinks foreign powers are choking off its supply chains, when really it's just been wearing its sweater inside out. Things like arresting cables, stealth paint, and drones, leading to a sweeping investigation of the country's industries. I want that kind of satisfying story.

Patriotism, Technology, and Modern-Day Stories

With or without CP, either is fine. I’m looking for stories centered on women.