Satoshi Nakamoto wrote Bitcoin on a Windows PC.
Discussion
For a time that was also the only way to run it as well.
And the code was low quality according to some core devs.
I think he was more of a theoretician than a coding practicioner
I forgive him.
FED, confirmed.
Maybe he was a great idealist but an inexperienced coder. And he did it without LLM help.