# Home Assistant > Home automation: system overview, room-by-room documentation, device inventory, automations, energy monitoring, and high availability. > Raw markdown mirror: https://docs.na.id.au/raw/home-assistant/ - [Deployment](https://docs.na.id.au/home-assistant/01-deployment/) — ## Design goals (raw: https://docs.na.id.au/raw/home-assistant/01-deployment.md) - [High Availability (Active/Standby)](https://docs.na.id.au/home-assistant/02-high-availability/) — ## The idea (raw: https://docs.na.id.au/raw/home-assistant/02-high-availability.md) - [Light brightness as state](https://docs.na.id.au/home-assistant/03-light-brightness-state/) — ## The problem (raw: https://docs.na.id.au/raw/home-assistant/03-light-brightness-state.md) - [Automating with Google Home & HomeKit](https://docs.na.id.au/home-assistant/04-assistant-automations/) — ## The core limitation (raw: https://docs.na.id.au/raw/home-assistant/04-assistant-automations.md) - [RFID tags & music albums](https://docs.na.id.au/home-assistant/05-rfid-music-albums/) — ## Why this exists (raw: https://docs.na.id.au/raw/home-assistant/05-rfid-music-albums.md) - [Home Assistant Documentation](https://docs.na.id.au/home-assistant/README/) — ## Documentation Index (raw: https://docs.na.id.au/raw/home-assistant/README.md)