The version for this integration can not be used with HACS.

[Agnemon]

When trying to download the integration via HACS from the link provided to Sebastians github page I get the following error message

Waveshare Relay
Commit will be downloaded

When downloaded, this will be located in '/config/custom_components/waveshare_relay'
Remember that you need to restart Home Assistant before changes to integrations (custom_components) are applied.

The version for this integration can not be used with HACS.

Home Assistant
Core 2026.3.2
Supervisor 2026.03.0
Operating System 17.1
Frontend 20260312.0

Windows 10

I am presuming that there are changes to HA in the latest version that are causing issues.

Are you still supporting/developing for this?

[Agnemon]

Got it working.
Changed the download link from

https://github.com/sebastianfs82/HomeAssistant-Waveshare-Relay

to

https://github.com/icecoldfire/HomeAssistant-Waveshare-Relay

Might be an idea to update the documentation on your page to download your fork not Sebastianfs82's