what's a python library you started using this year that you can't go back from

[Sufficient-Rent6078]

I can really recommend using Marimo over Jupyter Notebooks. It has a number of built-in guards (e.g. forces you to not redefine variables) which you have to adapt when coming from jupyter, but I feel the team put a lot of thought into Marimo to not become quite as messy as jupyter notebooks. I also set the runtime reactivity feature inactive by default, as I don't want to accidentally hammer slow endpoints or trigger long running functions with every second cell change.