Osaurus
A native macOS AI harness that keeps agents, memory, tools and identity on a user's own Mac, running fully offline in Swift with no Electron.
Osaurus is an AI harness for macOS that sits between the user and any model, local or cloud, providing the continuity of context, memory, tools and identity that makes AI feel personal rather than resetting each session. It works fully offline with local models, and can also connect to any cloud provider when more power is wanted, with nothing leaving the Mac unless the user chooses.
Agents are the core of the app: each one has its own prompts, memory and visual theme, and tools and skills are selected automatically through RAG search based on the task at hand, without manual configuration. Agents can opt into a private local database and a single self-scheduled next run, with local storage in plaintext by default (protected by FileVault) or optionally encrypted with SQLCipher.
It installs via Homebrew or a downloadable .dmg, in a standard build or a larger one bundling a default model, and is built natively in Swift for Apple Silicon under the MIT license.