Heimdall v0.1.0-alpha.1

The first Heimdall app: an assistant you talk to that sees and hears your Mac, instead of a chat window.

brew install --cask tobynoskillson/tap/heimdall-alpha

Or download Heimdall-Alpha-0.1.0-alpha.1-arm64.zip below, unzip it and move Heimdall Alpha.app to Applications. It is ad-hoc signed, not notarised: open it once, then click Open Anyway in System Settings > Privacy & Security, or run xattr -dr com.apple.quarantine "/Applications/Heimdall Alpha.app" (Homebrew does this for you). macOS may ask for permissions again after an update. Apple silicon, macOS 14.4 or later; macOS 26 recommended.

Setup walks you through your name, the agent provider and the permissions, then downloads the models from the listening step on (about 3.8 GB, each file checked against its pinned SHA-256). The last step is spoken: say "Heimdall, show me what you can do". Setup guide: https://tobynoskillson.com/heimdall/docs/

Alpha: listening, transcription, suggestions and pointing work; speaker naming, the wake decision, screen memory, voice, barge-in, floating cards and T3 delegation are beta. The in-app updater is off; update with brew upgrade --cask heimdall-alpha or a newer zip. Heimdall records audio and your screen locally: read the privacy section of the README before running it.

Heimdall v0.1.0-alpha

First public alpha of Heimdall: an assistant you talk to that sees and hears your Mac, instead of a chat window.

Source only. Build it with scripts/fetch_models.sh and scripts/bundle.sh (see the README); the fetch script downloads every model at a pinned revision. The ready-to-run app download, whose Setup downloads the models for you, comes in the next alpha.

Apple silicon and macOS 26 or newer. Listening, transcription, suggestions and pointing work; speaker naming, the wake decision, screen memory, voice, barge-in, floating cards and T3 delegation are beta. Heimdall records audio and your screen locally: read the privacy section of the README before running it.