After a couple of recent discussions, I have written a tutorial that describes how to write a sample project (source code is provided!) to enable the use of a Pebble watch to trigger Spark.function() calls (and now .publish()!).
It’s fairly long and requires a lot of formatting, so it’s over on my blog that also contains lots of other Core and Pebble related posts which you can find here:
If you would prefer me to reformat and reproduce it here on the Tutorial forum proper, then I can find time to do that too.
Any queries I’ll be happy to answer!