Neptune is a self-hosted cloud and services platform created and operated by Mike Bros. Built on bare-metal servers and interconnected infrastructure, it brings together a broad range of digital tools for invited friends, family, and trusted contacts, alongside selected services that are publicly accessible. Most member services use Authentik single sign-on, allowing users to access multiple tools with one account.

The platform offers media streaming through Jellyfin, file syncing with Nextcloud, photo management with Immich, and services for fitness tracking, project planning, Git hosting, and password management. Public tools include offline wikis, PDF utilities, diagramming, and developer resources. Neptune also hosts game servers for titles such as modded Minecraft and Satisfactory; these can be started on request. Additional offerings include a virtual tabletop and media-request tools.

Neptune’s infrastructure uses XCP-ng virtual machines, Docker containers, shared ZFS storage, backups, monitoring, and GPU-assisted media transcoding. Access to most services is invite-only, with requests handled directly by Mike.