I recently needed to implement a function that yields each element only once from an iterable.

EDIT: I recently realised that what I am vouching for in this post is Dependency Inversion Principle.

There is a well-known gotcha in Python. Namely, the default arguments retaining the mutation if mutated.

Doing it this way introduces a UX drawback being every MR’s pipeline failing if it does not have an approval from someone who isn’t the author of the MR. This might be irritaating, but I have not found another way that is not upgrading your Gitlab to at least Premium.

This is a “feel good” article mainly for myself, where I can add an item once I do something for the opensource community ❤️.

Docs

This post will showcase the extremely basic setup of a monorepo that will contain a local ts library and a next.js project as siblings: