POSTSEssaysEngineering essays from Arca Vision.SecurityWhy AI agents keep leaking API keysCoding assistants ingest .env files. ARCA wraps them with dummy tokens and 11 HTTPS presets so the raw secret never enters the model.Sep 13, 2026 · 7 min readSecurityThe vault format is now openThe ARCA vault format, cryptography, unlock/save semantics, and Shamir recovery are published under AGPL-3.0. The desktop shell, CLI, and licensing stay proprietary.Aug 28, 2026 · 3 min readSecurityWhy we built a password manager with zero network socketsCloud vaults optimize for convenience. ARCA optimizes for sovereignty, and proves it at the binary level.Nov 12, 2025 · 4 min readAILocal-first AI pipelines for regulated environmentsOn-device inference, HIPAA-aware workflows, and architectures that keep sensitive data off the wire.Oct 28, 2025 · 3 min readAIAI systems for government, healthcare, and securityNotes on applying AI in regulated settings. Arca Vision is a software company with a focus on AI. These settings are not the brand.Sep 15, 2025 · 2 min read
