Toy brainf**k interpreter; example app that can be modified without restarting

migrate old settings, attempt #3

This time we have to handle absolute filenames. Now lines-polygon-experiment fork should merge successfully, at least.

Created by  Kartik K. Agaram  on September 19, 2022
A23MMLJHXQOVDZHJCPCCP4SIFXTB7HXJMCCDAM2I7Q7BAIXMAYBAC
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