> To the point that now I could not in good faith say I understand the system I have built from the ground-up and worked on the last ~4-5 years.
You weren't programming with LLMs in 2021 or 2022, be real. More like 2024 (that's already pushing it) or 2025.
I'd guess they started developing the project back in 2021 coding by hand, and are now improving/maintaining via agenetic engineering. This is not uncommon.
The point is that it's easy to lose understanding of the finer details, even of a codebase you lovingly created, once this switch occurs and an LLM gets its hands on it.
Because telling lies on the internet attached to my real name is so beneficial to my reputation, right?
https://i.imgur.com/CNAUczi.png