localthings: Local Control of Samsung Appliances in Home Assistant, No More Cloud

Why Do We Need Local Control?

Behind the convenience of smart homes, cloud dependency has always been a nagging concern for users. Official control of Samsung appliances typically requires binding a cloud account, which means that even if the device is on the same Wi-Fi, control commands have to detour through the internet. Once the external network goes down or the manufacturer adjusts its services, automations stop working. The open-source project mbillow/localthings on GitHub offers an alternative: directly controlling Samsung appliances over the local network, without any cloud account. Written in Python, the project has already gained 930 stars and 102 forks, with 184 new stars in a single day, showing that demand for localized control is quite strong.

Core Mechanism of the Project

localthings's approach is to bypass the manufacturer's cloud and communicate directly with Samsung devices on the local network. It exists as a Home Assistant integration, exposing Samsung appliances as controllable entities. Since traffic doesn't go through the cloud, response latency is lower and private data never leaves the home. For users who care about data sovereignty, this is more appealing than richness of features. The choice of Python also lowers the barrier for secondary development, and developers familiar with the Home Assistant ecosystem can get up to speed fairly quickly.

Integration with Home Assistant

Home Assistant itself emphasizes local-first operation, and localthings fills exactly the gap for Samsung appliances. After installation, users can manage Samsung devices uniformly within Home Assistant's automations, dashboards, and voice assistants, alongside devices from other brands in the same interface. This integration doesn't rely on any third-party cloud relay—the chain from automation triggers (such as time or sensor state) to device actions is fully closed locally.

Home Assistant is an open-source home automation platform that emphasizes local control and privacy protection, supporting integrations for thousands of devices and services. Its core architecture is based on an event bus, a state machine, and an entity model: each device is abstracted as an entity (such as a light, switch, or sensor), state changes propagate through the event bus, and automation rules listen to these events and trigger actions. An integration is a plugin that connects Home Assistant to a specific brand or protocol, usually distributed as a Python package and installable via HACS (Home Assistant Community Store) or manually. localthings leverages exactly this mechanism, registering Samsung appliances as entities so as to reuse Home Assistant's automation engine, dashboards, and voice assistant interfaces without having to implement its own user interface and logic orchestration.

Prerequisites and Limitations

It should be clear that local control does not mean zero configuration. Users still need to put Home Assistant and Samsung devices on the same local network and complete the initial setup required by the project documentation. In addition, the local protocol is not an officially supported interface published by Samsung, and future firmware updates may affect compatibility. The project is popular, but whether the maintainers can keep up with firmware changes is a variable for long-term use.

Security and Maintenance Recommendations

Since control traffic stays on the internal network, security depends mainly on the home network itself. It is recommended to isolate IoT devices in a separate VLAN and limit Home Assistant's external exposure. For open-source projects, it is essential to follow the issue tracker and release updates—especially after Samsung firmware upgrades, confirm compatibility before updating devices.

A VLAN (Virtual Local Area Network) is a logically isolated network segmented via switches on top of a physical network. By default, traffic between different VLANs cannot pass directly and must be controlled by router or firewall policies. Putting IoT devices in a separate VLAN can restrict their access to other devices on the home network (such as computers and NAS), so that even if a device is compromised, the attack surface is confined to that network segment. Combined with firewall rules that allow only the necessary communication ports between the Home Assistant network segment and the IoT VLAN, risk can be further reduced. In addition, Home Assistant should not be exposed directly to the public internet; for remote access, prefer VPNs or encrypted tunnel solutions such as Nabu Casa.

Who Is It For

localthings is best suited for users who already have Home Assistant deployed, own Samsung appliances at home, and value privacy and offline availability. It doesn't aim to cover every brand but instead does one thing deeply: making Samsung devices controllable on the local network. The 930 stars and the gain of 184 stars in a single day reflect the community's recognition of the "de-cloudification" approach. If you're troubled by cloud accounts and external dependencies, this project deserves a place on your Home Assistant configuration list.

One-line Summary

Open-source project localthings lets Samsung appliances connect to Home Assistant over the local network, with no cloud account required.

Paragraph Summary

localthings is an open-source Home Assistant integration written in Python that aims to bypass Samsung's official cloud and directly control Samsung appliances over the local network. It addresses the offline failures and privacy concerns caused by cloud dependency, providing lower-latency local closed-loop automation. The project has gained 930 stars, with 184 new stars in a single day, indicating high community interest. Prerequisites are that Home Assistant and the devices are on the same local network and that initial configuration is completed, but the local protocol is not officially supported, and firmware updates may affect compatibility. The article recommends isolating IoT devices in a separate VLAN and following the project's maintenance status. The project is suitable for users who already have Home Assistant deployed, own Samsung devices, and value privacy and offline availability.