It can scale up.

> It's easy to set up and run your own federations. Fedimint is designed to be Byzantine Fault Tolerant so is resilient to m malicious nodes in a federation of 3m + 1 nodes. If you run a federation of 4 guardians you are resilient to 1 malicious guardian, if you run a federation of 7 guardians you are resilient to 2 guardians, etc.

>

> Fedimint can also be run in "solo mode" with a single guardian. This is useful for testing and development, but is not recommended for production use.

- https://github.com/fedimint/fedimint#running-your-own-fedimint