Notion is a productivity app I use regularly. It has so many kinds of data storage options - to-do lists, calendars, Kanban boards, etc. They recently released an API that allows you to fetch data from your Notion app using a secret token (just like one you would connect to a database like MongoDB). This is a website that uses the notion API to retrieve data from my notion calendar where I update all the important college activities and displays it. The possibilities are endless and you can almost use it as a CMS :P
I've used React to make the UI, and Node and Express to set up the backend server that fetches data from my Notion app.
https://developers.notion.com/docs/getting-started
Login to your Notion account and create a new page with a database of your choice (I've used a calendar). Create an integration and link it to the database you have created. Add the secret token of the integration and the database id of the database as environment variables
You can use the Notion SDK for Javascript as a dependency, it's a client that makes using the Notion API a lot easier (https://github.com/makenotion/notion-sdk-js)
In the function you use to make the request to the required endpoint, you can collect all the properties you want by digging into the page objects that are returned in the result. For instance, page.properties.Name.title[0].text.content to get the titles of the events in my Academic Calendar database
'npm install' and 'npm run dev' after adding environment variables
Deployed on https://boiling-fortress-22481.herokuapp.com/