Cross-platform privacy-hardening program. Two-layer product: - SilverLABS Application Stack (cross-platform spine) - Platform Hardening Profiles (per-OS, tier-honest) Platforms: Linux (Debian/Kicksecure), Android (Pixel/Samsung/Moto/generic), Windows (LTSC IoT), macOS (profile), iOS (MDM profile). Each flavour has both a preflashed hardware SKU path and a self-apply "harden your existing device" path. Includes umbrella docs (README + threat-model, design-principles, platform-matrix, roadmap, trust-model), per-platform and per-stack- component README stubs, .gitignore, LICENSE. Linux v1 ships first; Stack v1 = Browser + VPN + Sync. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
SilverLABS Application Stack
The cross-platform spine of SilverMetal. These apps replace the cloud services your device normally talks to. Same brand, same account, same data on every platform.
Components
| Component | Status | Purpose |
|---|---|---|
browser/ — SilverBrowser |
v1 (Linux MVP) | De-Googled, telemetry-free browser |
vpn/ — SilverVPN |
v1 (Linux MVP) | Always-on, no-logs VPN with our infrastructure |
sync/ — SilverSync |
v1 (Linux MVP) | Private replacement for iCloud/Google/OneDrive |
chat/ — SilverChat |
v1.1 | E2EE messenger |
duress/ — SilverDuress |
v1.1 | Duress password / panic-wipe / anti-coercion |
keys/ — SilverKeys |
v1.1 | Zero-knowledge password + 2FA manager |
shared/ — common code |
ongoing | Account SDK, crypto primitives, branding |
Account model
Users get a SilverLABS account number (Mullvad-style — random, no email, no name). One account → all Stack apps. Payment is processed separately (SilverDotPay / cryptocurrency option) with no link back to the account number.
Cross-platform build philosophy
Each app is built natively per platform — no Electron sprawl where avoidable:
- Linux: native
.deb+ Flatpak - Android: native APK / AAB
- Windows: native MSI / EXE (signed)
- macOS: universal binary
.pkg(notarised) - iOS: App Store
Where a single codebase (e.g., Tauri / Rust core) lets us hit multiple platforms with a thin native UI shell, we use it. We avoid Electron unless the cost of native is unjustifiable.
v1 ship order
- SilverBrowser — ungoogled-chromium-derived, our defaults, our update channel
- SilverVPN — WireGuard-based, our exit nodes, account-number signup
- SilverSync — Nextcloud-backed (server side), client-side encryption, native clients
These three ship with SilverMetal Linux v1.
v1.1 adds Chat, Duress, Keys.
Server side
The Stack server components live in separate repositories under SilverLABS/:
silver-vpn-infra— WireGuard exit-node infrastructure (Terraform / Ansible)silver-sync-server— Nextcloud + Radicale + Baïkal stacksilver-chat-homeserver— Matrix Synapse / Dendritesilver-account— account-number issuance + auth gateway
Self-hostable counterparts are documented for users who don't want to use SilverLABS infrastructure.