Calendar Integration Virtual Assistant

I need a virtual assistant focused exclusively on calendar management. Its one job is to keep Google Calendar and Outlook perfectly organised: scheduling new meetings, moving existing ones, resolving conflicts, sending reminders, and updating invitees in real time.

The solution has to plug directly into both platforms through their official APIs. Natural-language input such as “push Friday’s 2 pm call to next Tuesday” should translate instantly into the appropriate calendar change, and confirmations must be returned to the user in clear language.

I am open to the tech stack as long as it is stable, well-documented, and easy for another developer to maintain. Please include:

• Source code with concise inline comments
• Setup instructions for both sandbox and production keys
• A short video or walkthrough demonstrating the main calendar-management flows

The assistant should be ready to run in a cloud environment (Heroku, AWS, or similar), with secure storage of credentials and OAuth handled correctly for each service.

When you reply, outline the libraries or frameworks you plan to use and an estimated timeline for delivering a working prototype followed by final polish.