I like your node setup! Very robust. I need to add a UPS to my node.

Fedimint is trying to be a better "Uncle Jim" setup by eliminating single points of trust.

Imagine if in your community there were 5 people (including you) that were trusted community members (Uncle Jims) and you all created a 4 of 5 Federation. With this setup, the community would have to trust that 4 of the federation don't collude together to steal funds which I think is less likely than just 1 person deciding to stealing funds.

And since the LN gateway is separated from the core federation, you could use your already established lightning node to route payments for the federation.

For people using self-custodial lightning, Fedimint changes nothing, but for people using custodial lightning it provides a better trust model than what is currently available.