Local and private by design
Your history stays on your Mac in an encrypted database that's never uploaded. To draft a reply, only the small slice of context needed is sent to a zero-retention model that never stores or trains on it.
Sees. Hears. Never forgets. The watchman inside your Mac.
Heimdall lives inside Ruune Desktop. He remembers the key points from your conversations and writes in your voice, drawing on the context and history of .
Heimdall has recalled 0 times
Heimdall guards the Bifrost, so your screen context stays on your Mac. He's strict like that.
Heimdall keeps your history encrypted on your Mac and works hand in hand with your Ruune, so its help is as private as it is useful.
Your history stays on your Mac in an encrypted database that's never uploaded. To draft a reply, only the small slice of context needed is sent to a zero-retention model that never stores or trains on it.
Heimdall is part of Ruune Desktop, so it works with your Ruune device out of the box. What your Ruune heard in the room and what's on your screen come together in one memory.
01
As you move between apps, Heimdall keeps the text of what you're working on in an encrypted local timeline, so the context is there when you need it.
02
In any text field, your shortcut brings Heimdall up over your work. He reads the field you're in and pulls the matching context from your history and your conversations.
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Reply, summarize, or continue. Heimdall writes it in your voice and inserts it right where your cursor was, then only the context needed to draft it ever leaves your Mac.
Privacy is the whole point. Your full screen history lives in an encrypted database on your Mac, and that database is never uploaded. Heimdall reads on-screen text through macOS Accessibility APIs, never screenshots or recordings. When you ask it to draft a reply, only the small slice of context needed for that response is sent to a zero-retention model that never stores or trains on it. Your memory itself stays local.
No. Heimdall reads on-screen text through macOS Accessibility APIs, the same structured text a screen reader sees, not screen recordings or images. That text is deduplicated and stored in an encrypted database on your Mac.
Fully. Heimdall is part of Ruune Desktop, so it's built for your Ruune device from day one. Your device's captured conversations and the memory graph they build feed straight into Heimdall's context, so a recall can draw on both what's on your screen and what your Ruune heard in the room.
Yes. Ruune Desktop is a full note taker on its own: it captures your online meetings on Zoom, Meet, and Teams and writes the transcript, summary, and action items, right alongside everything your Ruune device records in person. Heimdall then recalls across all of it.
A note taker only knows what was said in a meeting. Heimdall also knows what's on your screen, and it fuses both. So when you're mid-reply, it can connect the doc you're looking at to the call you had about it last week.
The Ruune desktop app on macOS. Heimdall is built in. Download the app, grant Accessibility permission, and use your shortcut in any text field to bring him up.
macOS is available today. A Windows build is on the way. Grab the Mac app now, and Windows follows.