For a while I have been using a personal Notion db to track interesting art/music/etc events that are upcoming in NYC.

I grew tired of manually entering the time/place/other info into Notion. So I made this Val to serve as the backend for a bookmarklet — now I have one-click ability to munge an arbitrary event webpage → structured data → Notion db.

(source)

You can subscribe to your events in Calendar.app (macOS/iOS) or any other calendar application that supports iCalendar feeds.

1. Get your calendar feed URL:

   https://extract-event-data.val.run/calendar.ics?token=YOUR_API_TOKEN
   

   Replace YOUR_API_TOKEN with your API token (same token used for the bookmarklet).

2. Subscribe in Calendar.app (macOS):

   • Open Calendar.app
   • Go to File > New Calendar Subscription...
   • Paste the calendar feed URL
   • Click Subscribe
   • Configure update frequency (recommended: Every hour)
   • Choose which calendar to add it to
   • Click OK

3. Subscribe on iOS:

   • Go to Settings > Calendar > Accounts > Add Account
   • Select Other
   • Tap Add Subscribed Calendar
   • Paste the calendar feed URL
   • Tap Next and then Save

• Only events with categories: music and lecture
• Only future events (past events are excluded)
• Updates automatically based on your calendar app's refresh settings

Currently the calendar requires your API token for access. To make it public in the future:

1. Open server.ts
2. Find the /calendar.ics endpoint (around line 28)
3. Remove or comment out the token validation block:

   // Remove these lines:
   const apiToken = c.req.query("token");
   if (apiToken !== process.env.API_TOKEN) {
     return c.text("Unauthorized", 401);
   }

4. The calendar feed will then be accessible without a token