How can I use the Home Assistant Extension?

[c64emulator]

How is the integration with Home Assistant accomplished?
Is there a custom integration (like <https://github.com/PiotrMachowski/Home-Assistant-custom-components-Obegransad>)?

[JanPetterMG]

Thanks for the question! If the documentation was hard to spot, that’s on me — I’ll make sure it’s easier to find. For reference, here’s the relevant section from the Wiki:

The MQTT integration is required.

Once you configure the MQTT extension in your secrets.h with the host and (optional) credentials, your Obegränsad device will automatically show up in Home Assistant.
The only case where this wouldn’t happen is if MQTT auto-discovery has been disabled in Home Assistant — which is unusual unless you have a very specific setup.

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Unlike the custom HACS integration you linked (which isn’t supported here and only exposes a limited subset of functionality), this project is designed to be feature-rich. Integration is handled through MQTT, which works by subscribing to updates rather than using a push–pull polling approach. This means your device delivers instant, reliable updates with less overhead — a better fit for an IoT device like the ESP32.