For the last decade, the playbook for productivity was simple: if you had a team, you bought a subscription. Whether it was the colorful Kanban boards of Trello or the consolidated workspace of Taskworld, we’ve lived in an era of "Software as a Service" (SaaS). We adapted our workflows to fit their features, paid the monthly per-user fee, and accepted that "one size fits most." But a seismic shift is coming, and it has a name that sounds more like a subculture than a tech rev