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Dev tools · August 22, 2026

A private line to rainyseason.cr

A self-hosted end-to-end encrypted messaging line

What it does

As AI is continually integrated into corporate platforms and third-party software, we did not want client conversations to depend on systems we cannot inspect or control. We wanted something of our own. At rainyseason.cr, we value client confidentiality and proprietary creative ideas, so we built Private Line: an end-to-end encrypted channel between our clients and our studio in Costa Rica. We operate it ourselves. Zero AI integration. Public protocol and tests. MIT licensed.

A private encrypted line for clients and friends of rainyseason.cr

This browser cannot run the encryption the private line uses. Update to iOS 17 or newer, or the latest Chrome, Firefox or Edge, then open this again. For your security, sign-in does not open inside another app's browser. The passkey that protects your conversation cannot appear here. Open this link in your device's own web browser, kept up to date. para clientes y amigos de rainyseason.cr">A private encrypted line, for clients and friends of rainyseason.cr Nothing to remember, type, leak or phish. Your device's own lock approves it. Your device mints a key pair. The private key lives in this browser. Another browser on the same computer does not see it. Your device answers a cryptographic…from line.rainyseason.cr

Does the same job

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