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>kind of person that treated Design Patterns as a Bible

I have a vague idea of what the Bible says, but I have my favorite parts that I sometimes get loud about. Specifically, please think really hard before making a Singleton, and then don't do it.

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Singletons are so useful in single threaded node land. Configuration objects, DB connection objects that have connection pooling behind them, even my LLM connection is accessed via a Singleton.

OK yeah that's a pretty good general principle. You think you only need one of these? Are you absolutely certain? You SURE? Wrong, you now need two. Or three.

A singleton is more than just, "I only need one of these," it is more of a pattern of "I need there to be only one of these," which is subtly different and much more annoying.

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