Please help me consolidate my servers.

Hi everyone! I have a unique issue and wondering if the community can give me some input.

I have 8 family members that I’m supporting with their photo and file management, spanning across multiple countries.

My current setup: Server 1: Serving 4 users Location: Taiwan Backup Server1: Taiwan(different location) C2 backup with Backblaze

Server2: Serving 4 users Location: Seattle Backup Server2: Seattle(same location) C2 backup with Backblaze

They are all on the same network(Tailscale), but 2 separate systems. But this is the only way I can get low latency for the local users.

My question to this community is if there is a way to run a single cluster and have whatever server is the closest to them at the time. So I only need to maintain 1 single server network?

Basically I’m running 4 Synology boxes. I want to minimize things a bit.

Thank you!