Illustration of a configuration file whose highlighted lines flow into a hexagon and come out as two dashed-outline blocks with plugs

Inside ArC, part 3: the beans nobody wrote

I found beans in my application’s bytecode that no class in the project declares. In part 3 of this ArC deep dive, I show how extensions create beans from configuration, why Quarkus doesn’t run Portable Extensions and how a Quarkus extension works inside.

October 11, 2026 · 8 min · Matheus Oliveira