I don't think I will ever use something like that. I work in over 10 PCs everyday and my only synchronisation is a 16 GB USB stick. I keep all important work, apps and files there.
Trello has been existing for years, it's a very flexible way to organize information. Markdown isn't new either. I'd say there's a trend to simpler software that works locally, but that might simply be my bubble.
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