Ask HN: What tech stack is your favorite and why?

Need to know the problem before we can offer tools for how to solve it.

It’s a multi tenant collaboration tool (SaaS) for planning marketing and communication projects and campaigns with a focus on content planning, scheduling, rescheduling, content/website quality control. Like a mix of buffer, trello and a content hub.

Oh, I forgot to mention that data should synced in real-time between collaborators (Google Docs Style)