My custom-built NAS running Unraid in RAID-1 hosts the following services. See gear for specs.
For remote access, I use a VPN to connect to the machine. I also back up my MacBook using Time Machine, and for my desktop and VPS I use rsync.
Raspberry Pi 5 (8GB) running Homebridge to integrate non-HomeKit devices. It also serves as a precision NTP server using a Uputronics GPS module.
Cheap Ionos VPS for services exposed to the internet. Mainly using it for hosting this website and Nextcloud.