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"Zwischen Ringlicht, Chat-Kultur und unreflektierten Stellvertreterkriegen"

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Willkommen zu einer neuen Ausgabe von Rektal Digital! In dieser Folge lassen wir die Ereignisse der letzten Tage Revue passieren – und das gewohnt direkt, ungeschnitten und tiefgreifend.

Wir beleuchten Bernies spektakulären (und überraschend ereignisarmen) Auftritt im Gerichtssaal im Fall Fabian., analysieren das unendliche Pingpong-Spiel zwischen Bernardo und Frank mitsamt Deepfake-Gegenwehr, und widmen uns ausführlich den neuen Kanälen, die wie Pilze aus dem Boden schießen. Außerdem gibt es eine klare Ansage zum Thema „Moralische Liquidität“, Schattenbünde und den permanenten Vorwürfen aus der V-Paranoia-Ecke.

Lehnt euch zurück, bringt Popcorn mit und vergesst nicht: Wer im Glashaus sitzt, sollte nicht mit harten Keulen werfen.

00:00:00 Pre Intro

Jakob Hermanowski

Slides: http://summit.riot-os.org/2026/wp-content/uploads/sites/21/2026/09/Day2-jakob_hermanowski.pdf

This talk will describe the adventure of implementing the sock_dtls API with wolfSSL and overview encountered hurdles.

Jakob Hermanowski is a Bachelor’s student at the Frankfurt University of Applied Sciences with interests in low-level programming, embedded systems, and networking.

https://summit.riot-os.org/2026

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love finding out the true meaning of songs years after it was made... it took dancing to Stomach Pump to unlock a new meaning to that one too

A deep dive into dithering — the classic trick that makes limited-colour screens look like they have far more shades than they actually do.

Join Patreon : https://patreon.com/ncot_tech

This video explores how dithering works from first principles, starting with 1-bit displays like the classic black-and-white Mac and working up through 8-bit and 24-bit colour. We cover colour quantization and posterization, then build and code three major dithering algorithms from scratch: random dithering, ordered (Bayer) dithering, and Floyd-Steinberg error-diffusion dithering, plus a look at Atkinson dithering used on classic Macs. Along the way we explore retro computing hardware like the ZX Spectrum, Commodore Amiga, Atari ST, and Windows 3.1's 16-colour VGA mode, and show live dithering demos applied to webcam video. Finally, we look at why dithering still matters today, from Bayer-pattern camera sensors to E Ink e-readers.

0:00 Why this video looks broken (dithering intro)

Music by Karl Casey @ White Bat Audio

Keywords

Didier Donsez, Laurent Longuevergue (Université Grenoble Alpes)

Slides: http://summit.riot-os.org/2026/wp-content/uploads/sites/21/2026/09/Day1-Terraforma-compressed.pdf

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The Terra-Forma Project: IoT for Earth & Environmental Sciences

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Didier Donsez is full professor in Computer Sciences at Université Grenoble Alpes (Grenoble, France) since 2007. Didier teaches software engineering and information technologies at Polytech Grenoble, an engineering school. He advocates free and open source software since 1991. His research labs is the LIG (Laboratoire d’Informatique de

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https://summit.riot-os.org/2026

Christian Amsüss

Slides: http://summit.riot-os.org/2026/wp-content/uploads/sites/21/2026/09/Day1-DECT-NR.pdf

ETSI TS 103 636, more commonly known as DECT NR+, is a relatively new radio technology stack that can be used almost worldwide in technology-exclusive bands around 1.9GHz. Its low latency and high scaling modes make it the only 5G technology outside the cellular operator ecosystem, and its built in IPv6 adaption (based on 6LoWPAN) make it suitable for standards based IoT applications.

Christian Amsüss is active in Free Software communities since 2005, and develops with embedded devices and their networks since 2011. His objective is to help paving a way towards a Web of Things in which interoperability can be expected, the user is in control, and which is secure by default.

https://summit.riot-os.org/2026

Lukas Luger (TU Dresden)

Slides: http://summit.riot-os.org/2026/wp-content/uploads/sites/21/2026/09/Day1-Zigbee.pdf

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This talk will introduce the concepts of ZigBee and demonstrate its new integration into RIOT OS. ZigBee is a protocol used to control and monitor smart devices such as light bulbs, thermostats. It uses the IEEE 802.15.4 MAC and Phyiscal Layer. The code originates from the DSR-IoT company and is currently closed source. I will therefore present a highly updated fork from a prevoisly open-source version. This fork is tightly integrated into RIOT OS and its SubMAC-Layer.

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Lukas Luger is a Masters student in Computer Science from TU Dresden. His work focuses on RIOT, ZigBee, PSA Crypto and tinyDTLS.

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https://summit.riot-os.org/2026

Wir haben wir einen Trauerzug durch Schwäbisch Hall gemacht. Wir trauern um die Zeit die wir bis jetzt verloren haben und kein Prüfverfahren für rechtsextreme Parteien eingeleitet wurde.

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Nicolas Albarel is a software engineer at ANS innovation.