F · FB · OOP Masterclass:
from blocks to architecture.
D5 gave you the mechanics: FC, FB, METHOD, INTERFACE, EXTENDS. The Workshop gave you the instincts for when each one earns its keep. This masterclass climbs one level higher, to how the pros assemble those parts into machines that survive variant #14, the 3 a.m. patch and the next engineer. You'll get SOLID translated to iron, composition to stop the combinatorial explosion, the four patterns that actually run factories and dependency injection that makes logic testable on a desk. Then it ends with one glorious refactoring of a 214-line legacy MAIN.
Same five FBs, two different machines
🏗️ the same five FBs can make a maintainable machine or a haunted house, depending on the shape of the dependencies. This module is about that shape: who knows whom, who owns what, and what it costs to change.
Every pattern here is stolen
🧠 each one was lifted from thirty years of software engineering and re-forged for scan cycles, IEC syntax and machines that must not stop. Go ahead and steal them yourself, because that's what patterns are for.