Self-hosted UniFi Network controller and MongoDB running as two RouterOS containers on a MikroTik RB5009UPr+S+, backed by a USB stick split into swap and ext4 data partitions.
Part of a larger home-network build — full write-up with topology, VLANs, IPv6-over-WireGuard, and rationale: https://blog.homestack.space/mikrotik-home-network/
This setup's post: https://blog.homestack.space/unifi-controller-routeros-containers-mikrotik/