Node taught me to think in callbacks and then in promises. Go asked me to think in goroutines and channels, and the mental shift was smaller than expected — but the error handling shift was not.

Explicit `if err != nil` felt verbose for a week, then felt honest. You can see every failure path in the shape of the code.

For distributed systems work, the standard library alone covers an amount of ground that would be five npm packages in the Node world.