BitReXe is a proposed Layer 2 architecture to build out multiple EVM's on top of Bitcoin that can run in parallel, accomplishing more scalable smart contract execution on a second layer.
As Fold enters its third chapter, it aims to not only help users around the world accumulate bitcoin but conveniently use it to meet their daily financial needs.
Layer 2s are inherently limited in what they can accomplish, and importantly under what trust model they can accomplish things, by what the Layer 1 they are built on is capable of.