#fosdem

Live, measured metrics for the hashtag #fosdem from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.

hashtag.org network · sponsored

Own #fosdem

This #name is available to claim. It becomes your portal on the open agent web: this very page, a keyword you rank for by an open public stake, and a verifiable identity for AI agents. Nobody else sells a page like this for every #name.

$520.70/ year · 6-character #name
Claim #fosdem — $520.70/yr→Buy on hashtag.space (web3)
card via hashtag.org · tokens via hashtag.space
4
Uses / 7 days
Mastodon
4
Accounts / 7 days
Mastodon
40
Recent posts
Mastodon
~0/hr
Recent pace
Mastodon · last 40
2.1
Avg reactions / post
Mastodon · last 40
—
Reddit posts / month
Reddit search
—
Open-web mentions
hashtag.org Firehose

Day-by-day usage

measured · mas.to (Mastodon public tags API) · fetched 2026-10-15 08:09 UTC
0
10-09
0
10-10
1
10-11
0
10-12
2
10-13
1
10-14
0
10-15

4 uses by 4 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.

Related hashtags

measured · mas.to (Mastodon public search API) · fetched 2026-10-15 08:09 UTC

Live pulse

measured · mas.to (Mastodon tag timeline) · fetched 2026-10-15 08:09 UTC

Everything below is measured over the latest 40 public posts (spanning ~1005 hours).

Posting hours (UTC) — busiest: 19:00

00:0012:0023:00

Languages: English (36) · German (1) · Swedish (1)

Avg boosts / post: 4.8

Top of the latest posts

  • Good #IPv6 morning to #GitHub (with a little help from #FOSDEM) % host github-debug.com github-debug.com has address 140.82.121.2 github-debug.com has IPv6 address 2606:50c0:c0de:a00::390 % Getting there..

    Richard "RichiH" Hartmann@[email protected]♥ 27↻ 192026-09-12 06:32 UTCView post →
  • Should I propose a #FOSDEM 2027 main track talk about the current state of the high volume AI-supported vulnerability reporting race?

    daniel:// stenberg://@[email protected]♥ 10↻ 142026-10-05 20:39 UTCView post →
  • Ready for #fosdem : now Draftling supports ipv6. Also, I prepared a #forgejo server for the demo of synchronizing files. It will be fun watching what the visitors create. https://github.com/clackups/draftling #writerdeck #cyberdeck #freecad

    clackups@[email protected]♥ 8↻ 102026-09-19 17:11 UTCView post →

What “fosdem” means

Wikipedia

Free and Open source Software Developers' European Meeting (FOSDEM) is an annual software engineering conference. It is non-commercial and volunteer-organized with a focus on free and open-source software. Initiated in 2000, it is usually held during the first weekend of February, at the Campus Solbosch of the Université libre de Bruxelles (ULB) in the southeast of Brussels, Belgium.

“FOSDEM” on Wikipedia (CC BY-SA) →

#fosdem across platforms

every network with a public tag surface

Follow #fosdem straight to each platform’s own tag page. Where a platform publishes open data we measure it above; the rest lock their numbers behind paid APIs, so we link rather than guess.

Every number above is measured from a named public API at the shown fetch time. Nothing is estimated or extrapolated. Platforms that lock their data behind paid APIs are not shown. Agents: the same numbers, as JSON, at /api/hashtags/fosdem