Problem Description

Rob Dyrdek has built a time tracking tool that works in the following way:
-He updates his Google Calendar for all times of day including when he sleeps, with category specific hashtags. The application then can parse the hashtags and analyze how he is spending his time, sorted by hashtags and subheadings. Here is an example of the outputs:
https://docsend.com/view/ig2q45kvaubfgvyj
Him talking about it: https://www.youtube.com/watch?v=QX3W93XLhUc
and Here:
https://www.youtube.com/watch?v=YkLNy4vpPCI

I would like this to be able to link to my Google Calendar, search hashtags that are tied to specific categories, and output the same format as the following link, into a designated Google Sheet: https://docsend.com/view/ig2q45kvaubfgvyj

I would like to build this as a full web app, that anyone can sign up for and have outputs parsed to Google Sheets that they host:

Acceptance Criteria

Be specific about what you want in the solution here.

A) It must work. I must be able to input hashtags into every meeting I do, have this system parse hashtags, and output the same outputs in the same formats as Rob Dyrdek's time tracking system with time allocation, analytics, and visualizations
B) It should be able to integrate with Google Calendar and Sheets, nor not only me, but for others who sign up
C) It should have the data in easily parsible formats
D) It should have a web application front facing interface
E)It should have custom categories with sub categories

Technical Details

-Takes Hashtag from Google Calendars that are custom, pre-determined, and editable over time
-Outputs the exact amount of time each day that each bucket was filled, as shown by
https://docsend.com/view/ig2q45kvaubfgvyj
-Parses those times tracked and places them into outputs in Google Sheets that are shown
-It must updated at the end of every day, and at the end of the week check back on everything and reconcile to the final calendar
-Anyone can sign up, authenticate their Google Calendar and Google Sheets destinations, and have it work for them, too
-Simple web app landing page.

Timelines / Milestones

A) Proof of concept: demonstrable that you can take hashtags on my calendar and output them in the same format
B) Web App: Proof I can sign up online with my google information and it works
C) Final product: any tester can sign up and this works, and it just plain works.