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newsletter critical infrastructure newsletter: 5 April 2026

Dear friends, colleagues, and comrades,

Welcome to the critical infrastructure lab newsletter, edition number five.

We hope that you have been well. Maxigas hosted another Reticulum workshop at Internet Archive Europe, while Fieke and Niels organized a workshop on making printed circuit boards (PCBs) with wild clay.

The March Reticulum low-profile, low-energy community networking workshop was all about testing the mesh network with mobile phones (over Bluetooth, WiFi, and LoRa frequencies and protocols), building infrastructure nodes, browsing and making “micron” websites, and experimenting with running the entire protocol stack on single microcontrollers. See below for the next workshops in Den Haag, Utrecht and Linz.

The clay PCB workshop investigated alternative hardware from locally sourced materials and invited participants to reflect on renewable practices for the benefit of both nature and humans. Stefanie Wuschitz and Patrícia J. Reis (in collaboration with Waag) led the participants in processing the clay, shaping it into the PCB form, firing and painting the PCBs, and building a microcontroller.

Publications

We are happy to share:

In the media

We have been active in the calls for public accountability surrounding the hyperscaler data centre in Amsterdam that is projected to consume as much electricity as all households in Amsterdam combined.

Other news:

Upcoming events

We would like to meet you at one of these events:

Visit our website to check out all our publications, upcoming activities, and media appearances.

Highlights from our allies

What is inspiring us

In solidarity,
critical infrastructure lab

Niels ten Oever – Fieke Jansen – Maxigas – Dmitry Kuznetsov – Eric Zhang – Felipe Silva Figueiredo – Nora Svensson – Gargi Sharma

The critical infrastructure lab is funded by Ford Foundation, Internet Society Foundation, Open Technology Fund, AI Collaborative, University of Amsterdam, and Utrecht University.