This is a fully browser-side iCal (ics) calendar embed. It takes a link to an iCal file, and parses it and turns it into an embed. To use it, simply visit the link below and fill out the fields.
https://gra0007.github.io/modern-cal-embed/
Note: To use iCal urls that don't specify an Access-Control-Allow-Origin header, like from Google calendar, you'll need to use a cors proxy like https://cors-anywhere.herokuapp.com/.
You can test the embed's functionality using the following ics file url:
https://gra0007.github.io/modern-cal-embed/example.ics