AdGuard Home is a network-wide software for blocking ads & tracking. After you set it up, it'll cover ALL your home devices, and you don't need any client-side software for that. It operates as a DNS server that re-routes tracking domains to a "black hole," thus preventing your devices from connecting to those servers. It's based on software we use for our public AdGuard DNS servers -- both share a lot of common code.

Proxmox Virtual Environment is an open-source server virtualization environment. It allows deployment and management of virtual machines and containers

Lightweight network IP scanner with web GUI https://github.com/aceberg/WatchYourLAN

Checkmk is a comprehensive Solution for IT Monitoring of applications, servers, and networks.

Plex media server allows you to aggregate all your personal media and access it anywhere you go. Enjoy your own content on all your devices with Plex.

Synology is a popular NAS appliance

Synology Drive is a unified solution for effortless file management and secure collaboration.