[akshayB]

I worked on a project sometime ago where we needed to create a special event handling calendar with a Todo list for a large organization. It's crazy to deal with Google / Microsoft emails & calendars and on top of all that you need to handle iOS, Android devices & Outlook as well. We ran to bunch of issues with background sync and enormous attachments. At the end we just ended up using slack bot and a internal blogging tool to handle the whole thing. Calendar and notes are vitally important but with all customization / fragmented ecosystem thing become challenging.