I'd also drop the .SCR extension and give priority for the .KX over the .KIX extension.
De-tokenization is not important to me but it would be nice if there would be a detokenizer. This would keep KiXtart an open system as people would not be able to distribute UDFs in a tokenized way without others being able to see the source code.
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There are two types of vessels, submarines and targets.