Local repository is standard vocabulary for anyone who uses version control, which is now essentially everyone who writes software. It’s the copy on your machine, the one you work in before you push.
That gives the name an immediate developer-facing fit: a git tool, a self-hosted platform, a backup or sync product, an offline-first developer service. The phrase signals the audience with no explanation, and developer tools live or die on whether the audience recognises you as one of them.
There’s a second reading with real substance. Local repository also means the archive held by a town, a library, a university, or a records office. Digital preservation and local history are active, funded fields, and a platform helping small institutions publish their collections would sit well here.
Two plain words on the .com, no hyphen, spelled the same in every English-speaking market.
Offers considered.