Tailscale is announcing new features for Aperture, its AI stack management platform, aimed at preventing vendor lock-in for enterprise AI deployments. The announcements include: identity-aware universal data connectors (public alpha) that link tailnet identity with OAuth/API credentials for agentic data access; a responsive chat UI (public alpha) that lets users switch between LLM providers without lock-in; and sandbox support (private alpha) for running ephemeral or workstation-like agent environments. The core pitch is that organizations should keep their AI stack modular across four components — LLM, interface, sandbox, and data — connected securely via Tailscale's identity-aware network rather than committing to a single vendor's walled garden.