mr-eventdb-data

Event database containing dates for German/European tech conferences, hacker events, music festivals, and regional festivals. Data source for mr-eventdb.

Data format

Files in data/ use GNU recutils .rec format:

Name: FOSDEM
Start: 2026-01-31
End: 2026-02-01
Location: ULB Solbosch Campus
City: Brüssel
Country: Belgien
Url: https://fosdem.org
Tag: Tech

Fields

Field	Description
Name	Event name (required)
Start	Start date: YYYY-MM-DD (confirmed), YYYY-MM (month only), YYYY (unconfirmed)
End	End date (optional, same formats as Start)
Location	Venue name and/or address
City	City name
Country	Country name (German names for EU countries)
Url	Event website
Tag	Category tag (multiple Tag: lines supported, defined in metadata API)

Files

File	Description
data/events.rec	Main event database
data/camp.rec	CCC Camp series (projected dates)
data/congress.rec	Chaos Communication Congress series
data/zeitumstellung.rec	DST changes (MEZ/MESZ)
data/schnitzels.rec	SchnitzelS monthly meetup + Auswärtsschnitzel history (2011–2027)
data/feeds.rec	ICS feed URLs for automatic import
data/imported.rec	Auto-generated from ICS feeds (do not edit manually)
inbox.md	Inbox of URLs/event names to research and add
archiv/jaehrlich.rem	Annual recurring events in remind(1) format (archived)

Metadata

Tags and locations are managed via the metadata API (project-metadata-api), replacing the former project-tagdb and project-locationdb git submodules.

Workflow

1. Add raw URLs/event names to inbox.md
2. Research dates, fill into the appropriate .rec file
3. Add Tag: field using tags from the metadata API
4. New cities/venues are automatically added to the metadata API during feed import (with geocoding)
5. ICS feeds can be configured in data/feeds.rec and imported via eventdb-import

Processing

This repo contains only data. The pipeline that generates ICS, HTML, RSS, JSON, and map output lives in mr-eventdb.