😑Ok, what to choose?

In case you don't know how your architecture should be, consult the following table and pick your use case:

Use case	Recommended Adapter / Other adapters	Recommended Rate-Limiting Driver
Single node, one thread	Local	Local
Single node, multiple threads (PM2)	Cluster	Cluster
Multi-node, one thread, same Private Network	Cluster/Redis	Cluster/Redis
Multi-node, multiple threads (PM2), same Private Network	Cluster/Redis	Cluster/Redis
Multi-node, one thread, multi-network	Redis	Redis
Multi-node, multiple threads (PM2), multi-network	Redis	Redis

It's highly recommended to go for single-thread choices in multi-node architectures and scale horizontally on the instance level instead of both instances and threads.