You just described the architecture of PhotoStructure: https://photostructure.com/server/photostructure-for-servers/#service-architecture https://photostructure

You just described the architecture of PhotoStructure: https://photostructure.com/server/photostructure-for-servers/#service-architecture https://photostructure.com/server/photostructure-for-servers... (Not a dozen components, though; just four. A main/watchdog service, a web service, a volume watchdog and directory scanner service, and a cluster of sync-file jobs). Related: it was a total pita to handle real-time debugging until I made my own `tail -f` that sorted by timestamp and automatically updated as new processes added new log files).