> (But still, LLMs have helped me investigate and write code that is beyond me)

They haven't done that yet[1], but they have sped up things via rubber-ducking, and for documentation (OpenSSL is documentation is very complete, very thorough, but also completely opaque).

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[1] I have a project in the far future where they will help me do that, though. It all depends on whether I can get additional financial security so I can dedicate some time to a new project :-(