Chaos Computer Club - archive feed

OpenStreetMap consists of tagged nodes, ways and relations. Many use cases of geographic data, however, need a tabular dataset of points, lines and polygons. Processing OSM into derivative datasets is a crucial task that can benefit from new tools and formats. This talk will cover several topics around this theme, including: * Existing approaches such as the Export Tool * Why FlatGeobuf is a suitable forwards-thinking format * Computational challenges for processing global-scale relations * A new open-source program, Protoshapes, to generate admin polygons in FlatGeobuf format * Efficient approaches for global datasets such as coastlines, oceans, and road connectivity * Frequently updating datasets using the open-source OSM Express database about this event: https://2022.stateofthemap.org/sessions/VXECJQ/

Usability testing can be done without hordes of users to observe, in fact just three people is likely to give very useful hints. And it is almost certainly more useful than expected, and your software is likely not as good as you expect. This is based on my experience with using user testing while developing StreetComplete. about this event: https://2022.stateofthemap.org/sessions/EHZQXV/

Boundary conflation is a sensitive and difficult problem to solve. When administrative boundary data is available from authoritative sources for OSM, it is imperative that we have the ability to analyze boundaries for import and deduce if conflation with OSM ways can be done hopefully in a semi-automatic fashion. "Admin Boundary Conflation" is a special-purpose tool made for the purpose and this talk will introduce the workings of the tool to the audience along with the various output statistics available during the process. Currently, the tool is utilized for reporting geometric area differences of 0.01% in the 99th percentile of 5000 municipalities in Serbia within 20 minutes. about this event: https://2022.stateofthemap.org/sessions/HGFY7Z/

Presentation of the work we've done to adapt the OSM Carto style to vector tiles. We will take you through the making-of the cartography, step by step, scale by scale. Available on MapTiler Cloud (https://cloud.maptiler.com/maps/openstreetmap/), the style will be integrated into the next version of the OpenMapTiles project. We will also show you how to use this style in QGIS and how to display it on 3D maps with MapLibre. about this event: https://2022.stateofthemap.org/sessions/3EREXZ/

By 2025, HOT aims that communities in 94 countries vulnerable to disaster or experiencing multidimensional poverty are equipped and able to map the locations where they live and work. We believe that accessible mobile mapping tools are key to this effort. Since I started working for HOT in January 2022, I have done informal interviews, observations, focus groups and experiments with more than 100 regional users, primarily in East Africa, looking at the accessibility of current OSM mobile editing tools. Sharing this research with the wider community will help everyone build technology that fits the needs on the ground. For 3 months, with the support of OpenMap Development Tanzania (OMDTZ) and the State University of Zanzibar (SUZA) Youth Mappers, I did a variety of informal interviews, observations, focus groups, and experiments with individuals and local OpenMapping organizations, primarily in East Africa. My research included professional data collection campaigns, as well as entry-level community members whose first encounter of OSM was during one of my workshops. While the majority of my research focused on 5 main Open Source applications that are already in widespread use (StreetComplete, OsmAnd, Organic Maps, Vespucci & ODK Collect), many of the insights gained from this research, including data about hardware availability and current phone use, are applicable to anyone building mapping tools, especially those that will be used in low-resource environments. The HOT _tech team aims to do more than just talk. Analysis of the research will be followed by specific suggestions for those doing mobile OSM mapping, especially at the entry-level, as well as technical proposals for tooling improvement. We will be working with the existing OSM ecosystem to design and implement these proposals in a way that is inclusive and sustainable. Feedback is most welcome. about this event: https://2022.stateofthemap.org/sessions/UWHAME/

MapRoulette was first announced at State of the Map US in 2012 as a tool to solve the many errors introduced by the import of TIGER road data in the United States. Since then, MapRoulette has been used for map improvements and guided data imports around the world. In this talk, MapRoulette creator Martijn van Exel will look at some of the achievements, lessons learned, and the evolution from a single purpose tool to a micro-tasking platform. [MapRoulette](https://maproulette.org), the open source web-based micro-tasking platform for OSM, was first announced at State of the Map US in 2012 as a tool to solve the many errors introduced by the [import of TIGER road data](https://wiki.openstreetmap.org/wiki/TIGER) in the United States. After a successful and quick cleanup of over 60.000 common problems found in the TIGER data, it was clear that the idea of a micro-tasking tool was worth developing further. Over the years, MapRoulette gained a lot of functionality while staying true to its original goal: supplying the OSM communuty with quick, easy to solve tasks that help fix or improve the map. Nowadays, anyone can create tasks [using Overpass](https://learn.maproulette.org/documentation/using-overpass-to-create-challenges/#content) or GeoJSON, there are [new task types](https://learn.maproulette.org/documentation/creating-cooperative-challenges/#content) that make fixing problems in OSM even easier, and there is support for working in teams. In this talk, MapRoulette creator Martijn van Exel will look at some of the accomplishments and lessons learned in 10 years of MapRoulette, and highlight some interesting uses of MapRoulette over the years. If time allows, he will also show some of the newer functionality that may not be as well known even to experienced users. about this event: https://2022.stateofthemap.org/sessions/RRUH8S/

OpenStreetMap is the human-made map of the world. But how can one tiny human still make a difference in a project used by megacorps and crucial to millions of app and website users every day? How does OSM retain its individualism in a world that wants it to be consistent, orderly and predictable? Is it game over for the experimental, iconoclastic, independent map? Richard Fairhurst offers a challenging but upbeat look at the changing landscape for the OpenStreetMap mapper, user and developer. 2004: A crazy hobby project. One street mapped. One small mailing list. 2013: Edited by thousands every day. Beloved by hobbyists. Trialled by a few adventurous companies. 2022: The world's map. Worth billions. Used by everyone. What happened? Is there still a place for the individual in OSM, as mapper, user, or developer? How do you build with OSM when your competitors have free money on tap? Can OSM retain its iconoclasm and individualism when the Silicon Valley behemoths are involved? Richard Fairhurst is still as idealistic as in 2004 (but maybe a little calmer) and thinks that corporate OSM and independent OSM can co-exist, and better still, benefit from each other. In a wide-ranging, rollicking and occasionally factually accurate talk, he'll look at the OpenStreetMap economy in 2022 and how individuals can still make a difference. Expect: the secretive Kindred of the Kibbo Kift, situationists, books about pubs, bouncing phones. about this event: https://2022.stateofthemap.org/sessions/URUJH8/

The opening session of the State of the Map 2022 conference. about this event: https://2022.stateofthemap.org/sessions/QFUTA7/

In diesem Petit Foo geht es um eine häufige und bekannte Hacking-Technik: Denial of Service (DoS) Angriffe. Ich werde erklären was Denial of Service bedeutet und was ein Angreifer damit erreichen kann. Außerdem werde ich zeigen, welche Abwehrmechanismen existieren. about this event: https://www.chaospott.de

Hilfe, ich habe eine wichtige Datei gelöscht! Oh nein, meine SD-Karte mit den Fotos ist nicht mehr lesbar! In diesem Petit Foo stelle ich das Tool Photorec vor mit dem man gelöschte Dateien wiederherstellen kann und gebe Tipps zur Verwendung. about this event: https://www.chaospott.de

BornHack 2022 is almost over at this point. We would like to say farewell for now and see you again at the next event in 2023. We will walk over what we believe has worked and what we believe should change the next event. This is an excellent opportunity to submit ideas for BornHack 2023 while the memories are still fresh. about this event: https://c3voc.de

Most companies struggle with implementing DevOps culture, and end up with creating yet another silo and naming it DevOps instead, where all the brightest operations people with infrastructure skills go. But going from the obvious anti pattern, that a DevOps silo is, to something better is a journey and not something most organisations manage to do quickly if at all. I'd like to take you through the journey that Universal Robots has had, and explaining step by step what the challenges are, both technical and engineering related. Furthermore I'd like to show a few examples of tooling in the robotic world, where cloud native and Kubernetes are not always available, as well as point to areas where robotics is "just software like the rest". The talk deals with different archetypes and anti patterns of DevOps, and ends up with how to scale the DevOps setup, onboard management and give them their beloved governance in a way that a developer can stand it. about this event: https://c3voc.de

Come and meet the network team who will talk about the design and operation of the network at BornHack. about this event: https://c3voc.de

On the last night of bornhack 2021, the NOC team challenged pyjam.as to exhaust the bornhack uplink with useful activity. This talk is about the succeess or failure of our efforts to do so. about this event: https://c3voc.de

The BornHack game team will talk about our experiences at this years BornHack and show some stats of our game events. ¯\_(ツ)_/¯ ffwf863YbZaxXSP about this event: https://c3voc.de

In this presentation, we will be updating the audience on the ongoing modernization efforts of the software developed inside The Tor Project -- the organization behind the most widely deployed anonymity network on this planet. We will look at upcoming features and changes to the core technology that drives the Tor network and why a Browser may no longer be the only product we have to provide for the user-base that is so crucial in need of Tor's anonymity properties for safe internet access. The Tor ecosystem is currently going through a more extensive modernization phase where we are simplifying our goals slightly to make space for larger projects that we find necessary. This work includes implementing a new, more memory-safe Tor implementation in the Rust programming language named Arti. This work will make it easier for application developers to integrate their applications and benefit from the safety features that Tor can provide. Additionally, we will talk about some recent or upcoming changes to the network: - Give a status update on deploying modern congestion control algorithms in the Tor network. This work should significantly enhance the performance barrier that most Tor users experience. - The roadmap towards UDP support in the client and relay software. This work should allow more modern use-cases of the Tor software such as voice and video communication, WebRTC, and other protocols that leverage datagram-based data transfer. - Move to more modern cryptography in Tor's protocols, including support for Post-quantum cryptography and why this is needed. - Allowing Tor users to access the network using a VPN-like tunneling mechanism as an alternative to simply web-browsing and other socks5 enabled applications. about this event: https://c3voc.de

I have for a few decades worked in networking and security, and everything seems to have grown. I will try to lay out a path for people who wants to get into networking and security, with some references to pentesting, software security, and related areas. Where to start and which skills you should start learning. I will use my existing courses as a guide. These are taught as part of the of the Diploma in IT Security at KEA Kompetence https://kompetence.kea.dk/uddannelser/it/diplom-i-it-sikkerhed Note: I will reference book resources, but if you are on a tight budget lots of other resources may be used instead. Related links: https://zencurity.gitbook.io/kea-it-sikkerhed/ lecture plans and book references https://github.com/kramse/security-courses all my training and educational materials, including exercises booklets with small exercises that you can do with virtual machines like Debian and Kali Linux using lots of open source tools. about this event: https://c3voc.de

Hacker, Security Specialist @ WithSecure, Climber and CTF Player with too much DevSecOps knowledge. about this event: https://c3voc.de

I have had an interest in the overarching area of interactive fiction (IF) for many years. IF covers such diverse areas as: - text adventure games, - choose-your-own-adventure books, - visual novels, - multi-user dungeons, and - textual elements in mainstream games, such as dialogue trees. I would like to make my own text-based game, so for this talk I want to explore the design space of IF in order to figure out what kind of game I'll be making. IF has been popular for over 50 years and is still being actively created. As such, much has been written about it, and I won't be able to cover even close to everything. I'll start off by giving a basic overview, but most of the talk will concern itself with the specific subtopics of IF that I have found to be especially interesting and open to fun experiments. It'll be like thinking aloud, except hopefully better structured. Fun subtopics include: - The ease of iterative development: Everything is text, so it's easy to change major elements or restructure parts of a game. - The possibilities of multi-player storycrafting: Assuming the end goal is to create a fulfilling story for multiple people playing the same game, what are the different ways of harnessing the creative output of more than one person in a structured way? - Simulated world vs. static graph of choices (and everything in-between): The underlying technology should not matter to the user enjoying a piece of IF, but the underlying model for your IF is likely to affect your design choices in other parts of your game. Where does a good compromise lie? - Computer-assisted narratives: You don't have to write a story on your own — you can also ask a computer to do that. That can be fun in itself, but there is also a middle road where you're still the main author, but maybe use a computer tool to aid you in exploring plots and character traits. - Ideas of IF that can also be applied to non-interactive fiction: The normal representation of an ordinary book is (essentially) a list of sentences, where each sentence describe something in the world. What other IF-inspired representations could be used, and how can we guarantee that we can encode narrative goals that can be fulfilled by our story? On the practical side of things I'll touch upon a few existing IF systems that I think are interesting, but the main focus will be on whatever small experiments I have coded myself. Who knows, maybe this talk itself will also contain interactive choices that you, the audience, need to make... about this event: https://c3voc.de

Digital regulation starts in the EU - both at a global level and in the EU. So what has the European legislators been up to and what can we expect for remainder of the mandate of the Commission and Parliament. about this event: https://c3voc.de

Tandoor makes it easy to import your favorite recipes found on the various food blogs of the internet. Once you have imported all the things, you can apply your own modifications, and maybe switch out exotic foods/oils with something common that you prefer. What you can then do is use the recipes to create a meal-plan, and from that create a shopping list. In the talk I will do a demo of the various features of Tandoor. www: https://tandoor.dev code: https://github.com/TandoorRecipes/recipes about this event: https://c3voc.de

In 2021 we founded the WTF eG a coop company in Germany. It is a company which is owned by its members and each member has one vote. The goal is to economically empower hackers and members of the chaos community. The goal is to build an "operating system" from easy economic interaction from collection small donation to build virtual teams/company. Over the past 1.5 years, we have created many processes and software to achieve these goals, but more needs to be done. In this talk you will learn a little about coops, Germanies broken systems, what the basic idea was, how it is going, what our numbers are and what we can offer today and tomorrow. about this event: https://c3voc.de

Using scraped restaurant menus, we bust pizza hypothesis and shed light on economic purchasing power using the Margherita index, ingredient embeddings using pizza2vec, and optimizing pizza purchases using linear programming. about this event: https://c3voc.de

I am bad at keeping disks alive over a long period. As such, I have elected to put my collection of personal photos and videos up in the cloud This works fine, but sometimes it's useful to be able to share a photo gallery with friends and family with a simple link to a website. Many solutions to this exist, but most of them seem bloated. I have created a simple S3 media browser with all configuration stored in a single declarative file. It supports useful degrees of authentication (I think) and thumbnails. In this talk I'll show how it works and some examples of configuring it. See https://github.com/nqpz/roundworm for the code. about this event: https://c3voc.de

A brief overview of the cooperative data.coop. A data storage community with our own hardware. We will talk about the last year, how we have evolved and look a bit at our tech stack and our organization structure. There is a meetup later in the day, where you can come and talk to us and get involved :D about this event: https://c3voc.de

read in the voice of The Movie-Trailer-Guy In 2019 - with the help of the pwned-passwords list of Troy Hunt - we closed the tap on getting bad passwords into our IDM-database. Now, it's 2022 and we're back with an all new invention: Getting rid of bad passwords already in the database! imagine explosion about this event: https://c3voc.de