Fix #27: Make sure only one listener is running #32
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By default, only enable hotwire-spark when starting the Rails server. This prevents starting multiple listeners which can occur if one starts the Rails console or runs a script (
rails runner
).Technically it's still possible to run multiple listeners if one explicitly enables hotwire-spark. To prevent this, some form of resource shared between multiple processes are required (like a file lock). This seems to be more complicated than it's worth.