cal.pub — publish your calendar to the open web

One calendar. Many open surfaces.

cal.pub is the public web surface of the iCalendar iView — the same event data, published as open standards and rendered wherever you need it.

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Open feeds

Standard iCalendar .ics + GeoJSON. Subscribe in any calendar app, or fetch cross-origin — every feed sends Access-Control-Allow-Origin: *.

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Fail-closed privacy

Only events you explicitly mark #+PUBLISH and that pass an allowlist ever go public. Coordinates blur to public postal-code centroids. Nothing personal leaks — by construction.

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Federated

Your cal.pub is one sovereign instance in a forest. An aggregator indexes server links across calendar.network so viewers can span the whole network, not just one host.

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Many surfaces

The same source renders as a web catalog, an installable offline PWA, and a live map — one iView, projected wherever your audience is.

A network, not a silo

cal.pub is one instance. The federation lives at calendar.network — a forest of sovereign instances, indexed by an aggregator that feeds every viewer.

cal.pub Instance — one calendar server: the landing + gated hub feeds. Fail-closed.

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calendar.network Forest — the network of many sovereign cal.pub instances. owned

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aggregator.calendar.network Aggregator — indexes + publishes server links (never private events). A murmurations index. soon

▼ feeds two viewer modes

calendar.pub Viewer · server-rendered — fetches the network server-side, renders HTML. live

demo.cal.pub Viewer · client-rendered — fetches the open feeds in-browser, renders live. live

See it live

Every surface below is running right now on open feeds — no account, no tracking.

Surface	What it is	Status
demo.cal.pub ↗	Client-rendered catalog — browse by category, region, date & search.	live
calendar.pub ↗	The viewer — the iCalendar iView's public web surface.	live
iosm map ↗	Map lens — events on OpenStreetMap, PLZ-centroid located.	live
hub feeds ↗	The gated hub — public.ics, local.ics, events.geojson (`ACAO:*`).	live

For developers

Open standards, CORS-enabled. Build your own viewer against the same feeds these surfaces use — attribution preserved, licences intact.

Public events · iCalendar cal.pub.my.labs.ooo/public.ics

Opt-in, allowlisted, coordinate-scrubbed. Subscribe in any calendar app.

Local set · iCalendar cal.pub.my.labs.ooo/local.ics

The regional subset — same fail-closed gate.

Map layer · GeoJSON iosm.labs.ooo/events.geojson

Point features at public postal-code centroids — never exact addresses.

Sources: foss.events (ODbL-1.0 / CC-BY-SA-4.0) & frankenkids.de (Attribution + Linkback). Federation index shape: murmurations-compatible.