Revision - April 10th to 13th 2020
On a sofa near you



Compression for 1k to 8k Executables 


This is going to be a a talk on the compressing linker written for DOS and Linux binaries. It presents a demo tool in a version to allow multiple different compression backends and added support for packing existing 64-bit Linux binaries. This is important especially for Linux size coding.

The talk will cover a recently added compression tool that is competitive down to 1kB intros, and some of the lessons learned developing against it. 

How to scene for beginners 


Introduction to Revision for newcomers. An opportunity to clear up those things you were too afraid to ask. Incl. short presentation about the intranet, entry submission, party information, useful scene resources in general.
Newcomer mentors will introduce themselves and be available for Q&A.

Note that this seminar is not intended to be a full-fledged scene history session.

Open Source and the Demoscene


In this talk the connection between Open Source and the Demoscene is shown. There is more and more demoscene software that is being released as open source, and this seminar presents the background of why this is an important move. This is done especially with the focus on culture preservation purposes.


More Beers From Brussels, because you know you want it


Audience: beer enthusiasts

A few years ago we went thru the layout and beers of Brussels in an attempt to explain life, past, future, the universe and the Atomium. While we did make good progress and put in a tremendous effort in clarifying the world of the 19 cities that is 1 in a single seminar. There is more. Much more... And therefor we have a second Beer Seminar dedicated to Brussels... The capital of Belgium, The capital of Europe, Seat of NATO and yes - still the home of Manneken Pis.

  • A participation fee of 7.50 Euro is requested for taking part in this seminar, as we have to pay for the beers you will taste
  • There will be an attendance limit of 30 people as we need to keep the tasting manageable
  • Drunk people will not be allowed in
  • Seminar is 18+
  • There will be no toilet breaks, be prepared!

Repair cafe - how to reanimate your dead hardware


Audience: You are interested in hardware fixing, such as power adapters, legacy computer recaping as well as what to do with your old broken harddisk

You are interested in fixing your hardware, such as slack joints? Leaky batteries, failing capacitors in vintage hardware, as well as what to do with your old broken harddisk? There are numerous cases of magic smoke, some are by design, some are by the age of vintage hardware, and some were introduced by changing the European standard AC voltage in the 90s. So this seminar and is about common defects of hardware and how to detect them. You are about to see whether it is feasible to fix it, how to possibly fix it, and when it might be better to let go.

If you are interested in a kind of repair cafe, where you bring your hardware and we try to fix it on demand, please send your email to with subject "Workshop". Please include a short description of your issue so we can prepare or tell you what you should bring along.

GDPR: Gold Standard or Disaster of the Century?


Almost two years into its application, May 2020 is the time to review a law that is firmly applauded by some, heavily criticised by others, understood by few, and cursed by many. Following up on Netpoet's Revision seminar about WTFs in the GDPR from 2019, we're looking at how the GDPR has been received, what areas the EU Commission has identified for needs of alteration, how ready it is for the future, and what could be done to fix the situation.

Demoscene Preservation Society - Copy That Floppy!

Curt Cool/Depth ^ Nah-Kolor - AMP & Bitworld editor

Audience: All demosceners with interest in collecting old and/or rare demoscene productions

The demoscene is, by now, a senior subculture - many of us aren't kids anymore, in fact, rather, we have kids. Collecting demoscene productions has always been an interest of many sceners, and surely many even joined the scene back in the day moving on from collecting games. Given the state of ancient digital media used on retro computers like Commodore 64 and Amiga, many old productions and information from and about the history of the demoscene are about to be lost, and it is mainly us, the sceners, who can change this. This is also one of the reasons why a group of sceners and enthusiasts are applying to get the demoscene onto UNESCOS list of intangible cultural heritage. This entertaining little lecture will provide an insight into the efforts made to coordinate the preservation, archiving and catalogization of old and new demoscene productions - and provide you with guidance on how to archive disks yourself, where to send your disk images and data and how you can join and help the preservation effort. PS.: An anecdote or two from the demoscene and swapping disks in the 90's might be thrown in to keep things lively.

A talk and tasting about Cider from all over the UK


Audience: Cider drinkers and people that don't mind trying something new

Be prepared to try lots of unusual cider and have what you know about cider turned upside down. If you have come to one of my seminars before you know what to expect. Be warned this seminar is not for the faint hearted

  • A participation fee of 7.50 Euro is requested for taking part in this seminar, as we have to pay for the ciders you will taste
  • There will be an attendance limit of 30 people as we need to keep the tasting manageable
  • Drunk people will not be allowed in
  • Seminar is 18+
  • There will be no toilet breaks, be prepared!

How can we regain Digital Sovereignty?


Audience: Creators of digitalisation

Let's face the fact: We are no longer in full control of our digital lives. We have unwillingly accepted that we are exploited by surveillance capitalists and we can never know for sure if our devices are working more for or against us. In this seminar, kudrix presents 2 ways out with projects he is involved in:

  • Self-Sovereign Identity (SSI):
    Introduced to the demoscene in a 2018 Revision seminar, much has happened in the meantime. Many now see that a digital identity they control for themselves is possible. Projects throughout the world are already bringing SSI technology into productive use cases. We learn what they are doing and how they are doing it.
  • Secure Platform:
    Tech stacks are usually complex constructs with many interwoven layers. Even experts can't adequately state if a system is containing vulnerabilities and back doors. Those can be also in the hardware. Together with a group of security experts, a concept for a secure platform is currently detailed out. It takes even supply chain security, secure chip manufacturing and reconfigurable hardware into account! Learn what's going on there. Feedback and discussion strongly encouraged!

Implementing a Physically Based Shading model without locking yourself in


Audience: Programmers interested in rendering

How do you implement a Physically Based Shading for your demos yet keep the possibility to try something completely different without having to rewrite everything?

In this talk we will first get an intuitive understanding of what makes matter look the way it looks, with as much detail as we can given the time we have. We will then see how this is modeled by a BRDF (Bidirectional Reflectance Distribution Function) and review some of the available models. We will also see what makes it challenging for design and for real-time implementation. Finally we will discuss a possible implementation that allows to experiment with different models, can work in a variety of cases, and remains compatible with size coding constraints.