Very little content here. Additionally, the fmt.Errorf examples should use %w instead of %v in order to properly wrap the errors — see the golang 1.13 blogpost from 2019 https://go.dev/blog/go1.13-errors#wrapping-errors-with-w

I expected much more content here based on the title.

beehiiv should be added to a black list along with hashnode.dev - almost uniformly very very low quality spam.