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Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minuteFor most homes, run Home Assistant on local hardware—preferably Home Assistant OS on a Raspberry Pi 5 with an SSD or an x86-64 mini PC—and use a VPN, Nabu Casa, or a small VPS only for remote access. A VPS can host a cloud-heavy installation, but it cannot directly reach Zigbee, Z-Wave, Bluetooth, or other devices on your home LAN without a bridge or VPN. That extra networking and security work makes a VPS a specialist choice rather than the default.
What you are actually choosing
“Hosting Home Assistant” covers two separate decisions. First, you choose where the Home Assistant server and its database run. Second, you choose how phones and other clients reach it when you are away from home. Keeping those decisions separate avoids the most common design mistake: moving the entire installation to a VPS simply because remote access is inconvenient.
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A home server sits beside the devices it controls. It can communicate directly with Ethernet and Wi-Fi equipment and, with the appropriate USB coordinator, local Zigbee or Z-Wave devices. A VPS runs in a datacenter. It has an internet connection and a public or provider-routed network interface, but it is not physically attached to your home radio adapters or private LAN.
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- Choose local hosting when you use local sensors, switches, locks, heating controls, cameras, Bluetooth devices, Zigbee, Z-Wave, or automations that must continue during an internet outage.
- Choose a VPS-only deployment only when most devices are cloud-based or you are prepared to install and secure remote bridges for every important local protocol.
- Choose a hybrid deployment when Home Assistant should remain at home but you want a VPS as a reverse-proxy or VPN endpoint for remote access.
Home server and VPS compared
| Consideration | Home server | VPS |
|---|---|---|
| Access to LAN devices | Direct access to Ethernet, Wi-Fi and local discovery protocols | Not available directly; requires routing, a tunnel or a bridge |
| Zigbee, Z-Wave and Bluetooth | USB radio or built-in radio can be attached locally | Radio must remain at home and be bridged, or be exposed through a carefully designed remote setup |
| Automations during an internet outage | Local automations can keep running; cloud-dependent integrations cannot update | Unavailable if the home connection or the VPS path is down |
| Remote access | Needs a cloud service, VPN, tunnel or relay | Simple public endpoint, but it becomes an internet-facing system that needs hardening |
| Hardware maintenance | You replace failed storage, power supplies and radios | Provider supplies virtual hardware; you still maintain the operating system and Home Assistant |
| Scaling for cameras and local processing | An x86 mini PC can add substantial CPU, RAM and storage | Scaling is easy if a larger plan is available, but video still has to reach the datacenter |
| Power and network dependency | Depends on your electricity and home internet for remote use | Depends on the provider and the route between the VPS and your home |
| Best fit | Most mixed, local-first homes | Cloud-heavy systems, development environments and remote-access relays |
Hosting providers often market VPS instances as more reliable than a residential connection. That is a provider position, not a universal measurement. A local server has a different reliability advantage: lights, locks, heating and other local automations can continue when your internet service fails. Decide which failure matters more in your home instead of treating “reliability” as a single number.
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Why local hosting is the default for Home Assistant
Local devices stay local
Home Assistant’s core purpose is coordinating devices on the local network. Discovery, control and status updates can work without sending every event to a remote server. A local installation also places the radio coordinator close to the antennas and devices it serves. Moving the application to a datacenter does not move those radios with it.
Internet outages are less disruptive
When Home Assistant and the devices it controls are at home, an internet outage normally removes only cloud integrations and remote access. A scheduled light, a local motion rule or a heating safety automation can continue if its device and dependencies remain reachable on the LAN. A VPS-only installation loses the path to the home whenever the broadband link, tunnel or router fails.
Less networking to secure
A local server does not need to be exposed to the public internet. You can allow outbound connections for updates and remote-access services while keeping the Home Assistant interface behind your router. Every additional public endpoint, forwarded port or custom bridge increases the number of accounts, keys and software components that must be maintained.
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Mostly cloud-based devices
A VPS can be reasonable if your installation consists primarily of services that Home Assistant reaches through their internet APIs and you do not depend on local radios or LAN discovery. You still need to evaluate the provider’s location, backup policy, operating-system maintenance and network security, but the architecture is straightforward.
A relay for a home installation
The more useful VPS pattern is hybrid: Home Assistant remains on your home server, while the VPS accepts remote connections and passes them through a VPN or encrypted tunnel. Remote traffic reaches the home instance without opening an inbound router port. The VPS is then a relay, not the place where your Zigbee coordinator or local automations live.
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For this relay pattern, an Antihost VPS provides a self-managed Linux environment with full root access, NVMe storage and regions in the USA East, Netherlands and Ukraine; you configure the VPN or tunnel yourself.
Development and recovery environments
A separate VPS can provide a disposable test instance, a staging environment for configuration changes or an emergency endpoint while your home hardware is being repaired. Keep credentials and backups isolated from the production instance, and do not assume that a test VPS can see your home devices unless you deliberately route that traffic.
What a VPS cannot do by itself
A datacenter VM cannot directly discover or control a Zigbee stick plugged into your home computer, a Z-Wave USB controller, a Bluetooth sensor or an appliance that only answers on a private LAN. Making those resources reachable requires a bridge, a routed VPN or remote USB-style forwarding. Internet-exposing a device or protocol without encryption and authentication is a security risk, so a VPS-only design is not a shortcut around local networking.
Hardware for a home installation
Home Assistant’s official installation guidance recommends Home Assistant OS (HAOS) for most people bringing their own hardware, including Raspberry Pi, Odroid and x86-64 systems. HAOS is the most convenient route for installation and maintenance and supports add-ons. Linux, macOS, Windows and container-only approaches are available, but updates and backups are generally less convenient because you are responsible for more of the host system.
Published hardware figures vary and are not an official performance standard. Third-party vendor and blog guides commonly cite the following rough levels:
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| Use case | Often-cited starting point | Practical interpretation |
|---|---|---|
| Basic HAOS installation | 2 GB RAM, 32 GB storage, 64-bit x86 or ARMv7-or-newer CPU | Treat this as a rough lower bound, not a guarantee for add-ons, cameras or a large history database |
| General-purpose system | 4 GB or more RAM, 64 GB or more storage | Leaves room for integrations, backups and database growth |
| Zigbee2MQTT plus an MQTT broker | About 4 GB additional RAM is commonly cited | Actual use depends on device count, logging and other add-ons |
| Frigate with two to four cameras | About 8 GB additional RAM is commonly cited | Video analysis can require substantially more CPU, storage and possibly an accelerator |
Storage speed and endurance matter more than headline CPU speed for the recorder database. SD cards are a known weak point: sustained writes, power loss and database activity can wear them out or corrupt them. An SSD, preferably an NVMe drive in a compatible x86 system or an SSD attached to a single-board computer, is a more robust foundation. Keep backups on a different device or off-site; a second partition in the same machine is not an off-site backup.
Three practical home-server choices
Raspberry Pi 5 with an SSD
This is the low-power do-it-yourself option. Use a current 64-bit installation, connect storage that is designed for continuous use, and place the machine where its Zigbee or Z-Wave coordinator has a clear radio path. It suits ordinary lighting, climate and sensor installations, but camera processing and local AI may push you toward a larger computer.
Home Assistant Green
Home Assistant Green is the official plug-and-play appliance. It is aimed at readers who want supported hardware and a simple path to a working installation rather than selecting a board, case, power supply and storage separately. Add a compatible USB radio when your devices use Zigbee or Z-Wave.
x86-64 mini PC
An x86 mini PC provides the most headroom among these common choices. It is the sensible direction for several cameras, a large recorder database, demanding add-ons or local AI workloads. Choose one with upgradeable RAM, an SSD and a stable power supply rather than focusing only on the processor model.
How to install Home Assistant at home
- Inventory your devices. Record which products use the LAN, cloud APIs, Zigbee, Z-Wave or Bluetooth. This determines whether you need one or more USB coordinators and where to place them.
- Select compatible hardware. Choose HAOS-compatible Raspberry Pi, Odroid or x86-64 hardware. Start above the rough 2 GB/32 GB lower bound if you expect add-ons; 4 GB RAM and 64 GB or more of SSD storage is a more comfortable target.
- Install HAOS for the exact architecture. Follow Home Assistant’s current installation instructions and use the image matching your board or x86-64 machine. Do not mix an ARM image with x86 hardware or reuse an installer intended for another operating system.
- Boot on wired Ethernet first. A wired connection makes initial discovery and updates easier. Open the local address shown by your router or Home Assistant’s discovery process and complete account, location, time-zone and unit settings.
- Attach radios deliberately. Connect Zigbee or Z-Wave USB hardware through a short extension cable if necessary. Keep it away from USB 3 interference, metal cabinets, Wi-Fi access points and the computer’s power brick. Pair devices after the coordinator has a stable position.
- Add integrations in dependency order. Set up the network or vendor integration, then its entities and automations. For Zigbee2MQTT, the MQTT broker must be available before the Zigbee integration can publish device state.
- Configure backups before experimenting. Create a full Home Assistant backup, copy it to storage outside the host and test that you can locate and restore it. An off-site copy protects against theft, fire and a failed local drive.
- Test offline behavior. Disconnect the internet briefly while keeping the LAN running. Confirm which automations still operate and which cloud integrations become unavailable. This reveals dependencies before an actual outage.
- Add remote access last. Once local control works, choose a VPN, Nabu Casa or a tunnel. Remote access should not be the first variable introduced while diagnosing radio or integration problems.
Running Home Assistant on a VPS
A VPS installation gives you virtual CPU, RAM, storage and a datacenter network. The exact installation method depends on the operating system and the Home Assistant deployment type you select. HAOS is the convenient appliance-style route on supported physical hardware; on a VPS you are more likely to manage a Linux host or a container, which shifts responsibility for operating-system updates, storage, firewall rules and backups onto you.
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VPS-only architecture
- List every local dependency. Identify radios, LAN-only APIs, multicast discovery and cameras before ordering a server. Anything on this list needs a routed path or a remote bridge.
- Choose the operating system and supported deployment. Confirm that the provider’s virtual machine can run your chosen Home Assistant method, has persistent storage and permits the network features required by your VPN.
- Harden the host first. Use unique administrator credentials, SSH keys where supported, automatic security updates, a host firewall and provider-level snapshots. Expose only the services you can monitor and maintain.
- Build the private link to home. A WireGuard-based mesh such as Tailscale or a self-hosted Headscale control plane can connect the VPS and home network without manually forwarding a router port. Routing must be bidirectional for the devices and services you intend to use.
- Bridge radios and discovery only when necessary. Keep coordinators physically at home whenever possible. Forwarding a USB radio or stretching multicast across the internet adds failure modes and should be treated as an advanced project.
- Back up independently. Store Home Assistant backups outside the VPS, and retain a copy that does not depend on the same provider account or region.
If these steps sound disproportionate to your needs, keep Home Assistant at home and use the VPS only as a relay. You gain the remote endpoint without relocating the systems that need local access.
Remote access without opening your router
| Method | How it works | Advantages | Trade-offs |
|---|---|---|---|
| Nabu Casa | Official paid cloud service that publishes a secure remote connection for your Home Assistant instance | Least networking work; supports the project financially | Recurring fee; one vendor blog quotes $75 per year, but that figure is unverified and should be checked against the current official pricing page |
| Tailscale | Managed WireGuard mesh connecting approved devices | No manual port configuration; convenient for phones and computers | Relies on a managed coordination service and account policy |
| Headscale | Self-hosted control plane for a Tailscale-compatible WireGuard mesh, often placed on a VPS | More control over coordination and your own endpoint | You operate the VPS, upgrades, certificates and recovery process |
| VPS reverse proxy | Home Assistant remains at home; an encrypted VPN or tunnel carries traffic from the VPS to it | Stable public endpoint without an inbound home port; useful for custom domains and multiple services | Two systems must stay healthy, and the tunnel must be monitored |
| Cloudflare Tunnel | An outbound tunnel from home to a managed edge service | No router port forwarding and relatively little network configuration | Traffic passes through a third party; account, identity and service availability become dependencies |
| Reverse SSH tunnel | The home host maintains an outbound SSH connection to a VPS, which forwards selected traffic back | Uses familiar tools and avoids inbound home connections | Needs key management, a supervisor to reconnect the tunnel and careful firewall rules |
| Direct port forwarding | Your router publishes Home Assistant directly to the internet | Simple concept and no relay cost | Weakest security posture; exposes a high-value control interface and leaves patching, authentication and abuse protection entirely to you |
For a typical household, Nabu Casa or a device-to-device VPN is the shortest path. A VPS relay is appropriate when you already operate a server, need a fixed endpoint or want to centralize access to several self-hosted services. Avoid direct port forwarding unless you understand TLS, authentication, firewalling, rate limiting, logging and incident recovery.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Reliability, backups and failure planning
Power failure
A home server needs stable power. A small uninterruptible power supply can give the machine and network equipment time to shut down cleanly, but it cannot make a long outage disappear. A VPS avoids your local power problem while its provider remains available; the home devices it must control are still unreachable if your house is offline.
Internet failure
Test each automation’s dependency chain. A local motion sensor and local light may continue working on a home installation, while weather data, voice assistants and cloud cameras stop updating. A VPS-based controller generally loses contact with the entire home during a broadband outage unless the devices have an independent local control path.
Storage failure
Keep scheduled Home Assistant backups, export them away from the host and periodically verify that a backup can be restored. SSDs are not immortal, and snapshots supplied by a VPS provider are not a substitute for an application-level backup you can download.
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Network-path failure
In a hybrid design, monitor both ends of the tunnel. A healthy VPS does not prove that the home server, router, DNS, VPN client and Home Assistant process are healthy. Keep a local access method so you can repair the home instance when the relay is unavailable.
Security checklist for either architecture
- Use a unique, long Home Assistant password and enable the strongest available multi-factor option.
- Keep HAOS, add-ons, the host operating system and VPN clients patched.
- Do not publish the Home Assistant administration interface directly when a VPN or outbound tunnel can meet the requirement.
- Limit VPN routes to the subnets and services that actually need access; do not create an unrestricted bridge by default.
- Use separate credentials for Home Assistant, the VPS, the cloud tunnel and any radio or camera service.
- Review logs and connected devices after adding a relay, reverse proxy or new integration.
- Encrypt and protect backups; a backup contains credentials, device names, locations and automation logic.
- Document how to revoke a lost phone, rotate a tunnel key and regain local access if the VPS account is locked.
A decision framework
Pick a home server when you answer “yes” to any of these
- You own Zigbee, Z-Wave or Bluetooth devices.
- Automations must operate during an internet outage.
- You use LAN-only appliances, local cameras or multicast discovery.
- You want the radio coordinator physically close to the devices.
- You prefer a single appliance-style system with HAOS add-ons and local backups.
Consider a VPS-only installation when all of these are true
- Your devices are predominantly cloud services or are already reachable through secure APIs.
- You accept that home-network failure can disconnect the controller.
- You are comfortable administering Linux or containers, firewalls, keys, updates and backups.
- You have a tested plan for any local radio or LAN dependency.
Use a hybrid setup when this describes you
- You want local control and outage resilience but need dependable remote access.
- You already run a VPS and can maintain a WireGuard mesh, reverse proxy or tunnel.
- You need a fixed public endpoint without exposing your home router.
Recommended baseline for most households
Install Home Assistant OS on a Raspberry Pi 5 with SSD storage, Home Assistant Green or an x86-64 mini PC. Select the x86 option when you expect several cameras, a large history database or local AI; select the appliance or Pi route when low power and simplicity matter more. Put the server and radio coordinator in a central, interference-light location, create off-site backups and verify local automations before enabling remote access.
For access away from home, start with Nabu Casa or a WireGuard mesh such as Tailscale. If you need your own public endpoint, keep Home Assistant at home and use a small VPS as a reverse-proxy relay over an encrypted tunnel. Reserve a full VPS migration for a genuinely cloud-based setup or for users willing to engineer and maintain the networking that local devices require.
Frequently Asked Questions
Can a VPS control my Zigbee or Z-Wave devices directly?
No. The radio coordinator is physically at home, so a VPS needs a routed VPN or a separate bridge to reach it. Keeping Home Assistant near the coordinator is usually simpler and more resilient.
Will Home Assistant keep working if my internet goes down?
A home installation can continue local automations while the LAN and power remain available, although cloud integrations and remote access will fail. A VPS controller generally loses contact with the home during a broadband outage.
Is port forwarding the easiest remote-access method?
It is easy to describe but has the weakest security posture because it publishes the control interface. A VPN, Nabu Casa, or an outbound tunnel avoids an inbound router port.
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