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February 16, 2026

AI Plumbers at FOSDEM’26

Common Crawl was invited to the AI Plumbers unconference held at FOSDEM this year. The contrast between the 100 people at the unconference, compared to the 10,000 people at the main event, couldn't be bigger.
Thijs Dalhuijsen
Thijs Dalhuijsen
Thijs Dalhuijsen is a Senior Software Engineer at Common Crawl. He works on backend systems, automation, and data infrastructure to power large-scale web access and analysis.

Common Crawl was invited to the AI Plumbers Unconference held at FOSDEM this year. The contrast between this fringe event and the main conference couldn’t be bigger; cozy sessions of talks and small breakout rooms facilitating about 100 people, compared to the 10,000 open source developers that visit the Open University in Brussels over the two days of the event.
With only three rooms in 2006,  28 in 2016, and 37 lecture halls now in 2026, all densely packed with both attendees and scheduled talks, the growth of this conference cannot be understated.

One of the 37 lecture rooms and halls at FOSDEM.
One of the 37 lecture rooms and halls at FOSDEM.

Admission is free-as-in-beer, with the event mostly financed through the sale of t-shirts and  not-so-free beer.  The  feeling that you are visiting a festival rather than a conference is, through the enormous amount of buzz and people, very palpable.

Lunchtime at FOSDEM, people hurrying out of the lecture rooms towards a street full of food trucks.
Lunchtime at FOSDEM, people hurrying out of the lecture rooms towards a street full of food trucks.

AI Plumbers Fringe Event

As mentioned, the contrast with the unconference directly following FOSDEM couldn’t be greater, held at a cozy meeting space hidden in the center of Brussels, we were welcomed into the meeting room through a fairytale-like staircase, leading up to a small lecture hall dotted with cushions and sitting nooks.  A wondrous environment that proved extremely suitable for the free exchange of ideas.

Picture showing the fairytale-like staircase into the shared meeting space
Fairytale-like staircase into the shared meeting space

A few attendees came up to us, “Oh you work for Common Crawl? Thanks so much for the data!” As was the case at FOSDEM, language preservation and archival of digital data before it succumbs to bit rot, or is drowned out by generated content, was a hot topic.
We had a lovely chat with Ron Evans  and William Kennedy, who were there to demonstrate deployment and workings of Kronk and Yzma, a model server and llama.cpp wrapper built entirely in Go.  Ron pictured below as he introduced us to his, very cute, Gopherbot.

Ron “deadprogram” Evans, proudly introducing us to his gopherbot creation.
Ron “deadprogram” Evans, proudly introducing us to his Gopherbot creation.

This release was authored by:
Thijs Dalhuijsen is a Senior Software Engineer at Common Crawl. He works on backend systems, automation, and data infrastructure to power large-scale web access and analysis.
Thijs Dalhuijsen

Erratum: 

Content is truncated

Originally reported by: 
Permalink

Some archived content is truncated due to fetch size limits imposed during crawling. This is necessary to handle infinite or exceptionally large data streams (e.g., radio streams). Prior to March 2025 (CC-MAIN-2025-13), the truncation threshold was 1 MiB. From the March 2025 crawl onwards, this limit has been increased to 5 MiB.

For more details, see our truncation analysis notebook.