I have added one component - an external servo controller (in I2c) - makes life a tad simpler (although it is a bit of overkill - 16 channel servo controller for 1 servo).
Note that I do have an Onion Omega2+ with a servo hat - the trouble is that the Omega seems to have issues with MQTT in particular doing DNS lookup (I don't want to hard code IP addresses) so that is on the back burner for the moment.
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