Three steps and your library is open. Nothing to sign up for, nothing to configure first.
It is in your Downloads folder. Double-click it.
Then eject the disk image. macOS may ask once to confirm you downloaded it from the internet: it is signed and notarized by Apple.
Teserra asks where your library should live and what should fill it. Start empty, drop a folder, import Eagle, or try the demo.
The local search model, the screen permission, the demo. Two minutes.
Option-click any image or video on the web and it is in your library.
Folders, tags, notes and palettes, imported in one step.
Requires macOS 12 or later on Apple Silicon. Fourteen days free, no account. Questions: Support.