Beam Mail
A desktop Gmail client built for fast triage without hiding where the data goes. Mailbox state syncs both ways with Gmail, while memory, loops, reminders, and notes stay local.
- Bidirectional
- read, star, label, archive, trash
- 10–40s
- observed Gmail restore pull
- Local
- memory, loops, reminders, notes
- Fail closed
- cloud AI requires a ZDR route
A desktop mail client for triage, follow-up, and writing across Gmail accounts.
Beam MailA fast inbox with the machinery showing.
Beam keeps inbox work quick, but names the state underneath it. Gmail stays authoritative. Local features stay local. Cloud model calls carry a visible privacy contract.
Mirror
Rust pulls Gmail history into a local SQLite projection. The interface reads locally, so inbox work does not wait on a round trip for every view.
Gmail REST · SQLiteTriage
Work through mail by category, shortcut, account, or the Get me to Zero flow. Every mailbox change is journaled before it reaches Gmail.
keyboard · categories · zeroWrite
Drafting can use editable local memory and selected knowledge. The interface shows whether the active route is local or ZDR cloud.
memory · local / ZDRReconcile
Confirmed Gmail state settles the operation journal. Reauth, offline work, retries, and ambiguous sends remain visible instead of being collapsed into a success toast.
Gmail authority · recoverableThe working parts behind the inbox.
Several accounts, one working view.
Account spaces can be combined or isolated without mixing credentials, local memory, or mailbox scope.
spaces · account isolationLoops are first-class mail state.
Beam tracks what I owe, what I am waiting on, and when a thread should come back. That state is local by design.
waiting · owe · remindEditable context, not a mystery profile.
The memory view shows the facts, people, preferences, and writing traits Beam can use. Each item can be corrected, disabled, or removed.
facts · people · writing styleThe badge follows the route.
Beam cannot claim local-only while message content is in flight. If an eligible ZDR endpoint disappears, the cloud task stops.
local · ZDR · unavailableThe rules that keep a fast mail client from becoming a risky one.
- Gmail is the remote authority. SQLite is the local UI projection, never a competing mailbox.
- Every manual or AI mail mutation enters the same durable operation journal.
- OAuth tokens and API keys live in macOS Keychain, not in SQLite or plaintext config.
- Cloud AI requires current endpoint-level ZDR evidence and fails closed when that evidence expires.
- Message HTML renders inside a scriptless sandbox with no Tauri bridge or automatic remote loads.
- Offline, reauth, stale, retrying, and ambiguous-send states remain distinct in the interface.
The private app, the Gmail core, and the source-controlled product mockup.
The Tauri app for reading, triaging, searching, writing, and following up across Gmail accounts.
private desktop appA Rust mail core with local SQLite projections, a durable operation journal, OAuth in Keychain, and recovery when the network or account state changes.
Gmail REST · SQLite · operation journalThe checked-in design source for the inbox, memory, settings, composer, loops, and Ask Inbox surfaces shown on this page.
product mockup · source-controlled