At home on multiple Pis: OpenMediaVault HomeAssistant Raspbee (Zigbee module) Unifi controller
Server 1 (Ubuntu): Wireguard
Server 2 (Ubuntu): Nextcloud Trillium Gitea Vaultwarden Calibre Web Vikunja Photoprism Paperless
All services only run on the Wireguard interface.
And I am looking into some billing tools for my side-gig.