Pola.rs is a Python package to interface with a Rust library, but it's evidently coming to R as well.
As I understand it, Polars is an alternative to wrangling libraries like data.table and dplyr. This book compares the syntax of the 3 libraries.
In the interests of making this community home for those of us who are reddit refugees, let's go ahead and introduce ourselves.
Some suggested things to comment on/include in your introduction:
Here's the textbook I use for my classes in R and Python (used to be R and SAS, and I couldn't just drop SAS without adding something else, so now I teach students both). Hoping it's helpful to anyone who is trying to learn R.