I hosted a multi-player server for my friends and it was a blast. The Docker image makes it so easy: https://github.com/bateau84/openttd
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https://github.com/bwachter/ttd_addons/blob/master/ttdconsol... is another example of progress - if I remember correctly at the time I did this inotify was in development outside the kernel tree. Nowadays solving this would be trivial with inotify on Linux - and other UNIX variants also mostly gained some form of file monitoring API.