Ask HN: Alexa for Knowledge Workers?

Hey HN, I’m working on an interesting piece of software for my Master’s thesis, basically an extensible personal assistant for work. It can do useful things like search across all your internal files, generate notes and reminders from documents, and even attempt to learn your habits to surface useful suggestions and analytics. Would something like this be useful as an open source project or even a commercial SaaS product? Does anything like this exist in industry?