Quoted from conserx:If Stern was to let anyone start programming their own code it would open up a can of worms.
Imagine someone mistakenly writing an error in the code which caused a coil to lock on & potentialy burn up, Lot of liability there.
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No, you allow the user community to write new code and it all gets submitted to Stern for approval, denial and testing. That helps both us and Stern. They could piece out what features they want to add to a future Stern release.