Syncthing

Tailscale builds a private encrypted network between your devices using WireGuard, so you can reach a home server from anywhere without opening ports to the internet. It makes self-hosting practical for non-experts. Traffic is end-to-end encrypted, but device coordination runs through Tailscale's servers, which you can replace with self-hosted Headscale.

ArchiveBox is a self-hosted web archiving tool that saves full local copies of web pages as HTML, screenshots, PDFs, and media. It protects your research and references against link rot and platform takedowns by keeping the source on your own disk. Sites with heavy JavaScript or paywalls archive imperfectly, and storage grows fast.

Home Assistant is an open-source smart home platform that runs locally and connects thousands of devices without sending your home's activity to vendor clouds. It keeps automation working even when the internet is down and stops appliances from reporting on you. Expect a learning curve and occasional breakage when integrations change.

Immich is a self-hosted photo and video backup service with automatic phone uploads, face recognition, and search, built as a direct replacement for Google Photos. Your entire photo history stays on a server you control instead of feeding a cloud provider. It moves fast as a project, so updates occasionally require migration steps.