# HTIFA > HTIFA is a local-first schematic editor for audio-visual systems. Important pages: - https://htifa.com/product/ : Product capabilities, AV schematic workflow and device library. - https://htifa.com/solutions/ : Use cases for integrators, consultants and enterprise AV teams. - https://htifa.com/pricing/ : Pricing tiers. - https://htifa.com/resources/ : Technical guides for signal flow, device libraries and AI-assisted device building. - https://htifa.com/changelog/ : Product updates. Core concepts: - Signal-domain routing for audio, video, power, control-net, AVoIP, control-io and other paths. - Generic devices plus installable library packs with real port maps and hardware metadata. - Datasheet-to-device AI assistance; full design routing is treated as a beta workflow. - Local-first browser workflow with PDF, BOM CSV, JSON import/export and readonly share links.