Chaos Computer Club - archive feed

Wenn man den öffentlichen Diskurs zum Thema "Digitale Souveränität" verfolgt könnte man zu dem Schluss kommen, dass das Thema für einen selbst zu groß und abstrakt ist, als dass man es selbst durchdringen geschweige denn selbst etwas tun kann. Wir schauen uns gemeinsam aktuelle Vorkommnisse an bei denen so einiges schief läuft. Da ich selbst nicht verzweifeln möchte bringe ich dann auch Handlungsoptionen mit, mit denen wir die Welt zwar vielleicht nicht retten, aber zumindest etwas besser verstehen und auch etwas besser machen können.

about this event: https://programm.froscon.org/2022/events/2818.html

OpenStreetMap is a collector's dream. While there is a finite set of stamps or coins, there are millions of shops and beauty salons, and new ones are opened every day. Yay, collect them all for the map! (And make the map better in the process, of course.) Alas, this task was made tedious, virtually impossible by our current tools. Not as much for adding — but for updating the data we've already collected, and finding what's missing. I've talked many times of this problem, and this year I think I've fixed it. This year changes everything for how POI are handled in OpenStreetMap.

Last year I presented the idea of making cartography apps without a map for the central UI element. And added a couple drawings of a better editor for POI. Well, it is finally out there, and hundreds of mappers have already surveyed... a lot. So one part of this talk is a typical OSM editor talk: I'll walk you through the design decisions, show some statistics, and elaborate on how writing a new OSM editor is akin to writing a new browser these days: an enormous task, but with a lot of open source code at hand.

But what is different, is that this editor is not a toy and not a general-purpose tool. It is very focused (well, on three things at once, but still). Meaning, you don't play with the map in it, and don't get lost in menus. You survey. Lots and lots and lots of shops and amenities are going to get added or confirmed. This editor does not just "allow" anything. It changes the landscape of OpenStreetMap. Before it shops were an afterthought — now people would seriously consider using OSM for searching. Here's where my experience in working with commercial places data comes in handy. Let's see what can we get out of this, and why "fun" is still as important in OSM mapping as always.

about this event: https://2022.stateofthemap.org/sessions/ACCWJY/

about this event: https://programm.froscon.org/2022/events/2825.html

OpenStreetMap is a huge repository of geographic information – but how accessible is it? This panel aims at enlighting existing educational activities and platforms around OpenStreetMap topics, including editing, data usage and community governance, with the goal of exploring how new users and data consumers can approach OpenStreetMap in an easier way, and eventually widespread its adoption. During the panel we will discuss and share educational practices, experiences and tools and challenges.

During the panel, we will discuss existing educational activities and platforms around OpenStreetMap topics, including editing, data usage and community governance. When first approaching OpenStreetMap, learning tools and activities may prove to be highly beneficial for new volunteers in several aspects as well as for expert mappers to improve their knowledge.

Education around editing may lead to higher quality of data both during collaborative events or, in general, over all the mapper’s lifetime.

Mappers may have knowledge on OSM editing and complete lack of understanding on how the data can be used for software or cartographic applications. On the other hand, many data consumers may not know editing practices and how the tagging schema is refined and discussed in the OSM community.

Understanding how the OSM community is interacting and governing the project, including exposure to the guidelines related to good editing practices, organised editing, imports and licensing, may have companies and professionals better understand how to behave in this environment.

The goal of this discussion is to enlist and explore all the tools and activities that organizations and communities are developing around education on OSM, with particular focus on the audience covered by those as well as the languages this material is offered through.

about this event: https://2022.stateofthemap.org/sessions/SCBZ9Q/

The last 10 years were quite turbulent for the iD editor: After the initial idea from Richard Fairhurst was quickly picked up by a developer team at Mapbox, the editor became OSM’s default map editor almost exactly 9 years ago today. Since then, different Maintainers have managed the project, constantly enhancing its functionality and data models like iD’s built in tagging presets.

This talk will present a condensed overview of the evolution of the iD editor since 2012 and, more importantly, showcase what still lies ahead of it: Small and large improvements to the user interface, performance, data validation, customization, integration of external services and more.

Almost exactly 9 years ago, the iD editor became OSM's default editor. But its core idea was first presented even a year before that.

Looking back at the past 10 years history shows that the project has undergone quite a few different phases: The initial sparks and the coining of the name by Richard Fairhurst were followed up shortly by a rapid development phase by a team of Mapbox engineers resulting in iD being ready to stand in as OSM’s default map editor. Since then, different Maintainers have managed the project, constantly enhancing its functionality and data models like iD’s built in tagging presets..

In the last couple of years, the iD editor has also seen some usage outside of the main OSM website, for example in the form of Forks like the RapiD editor, advancing the applicability in their own specialized use cases and scenarios.

This talk will present a condensed overview of the development of the iD editor since 2012 and, more importantly, showcases what still lies ahead of it: Small and large improvements to the user interface, performance, data validation, customization, integration of external services and more. All with the goal to make iD fit for next 10 years and more to come.

about this event: https://2022.stateofthemap.org/sessions/C9AKZK/

OpenStreetMap has proven to be a really interesting and valuable classroom instrument. Making students work with OSM allows them to develop the soft skills entailed in cooperation, to interact with something bigger than their class or school and to give their contribution for the sake of the collectivity. In this particular experienced, we worked on the local area of Bari with a class with 17 female students of a "Liceo Economico-Sociale", a school not particularly engaged in the STEM field. Thus, we also wanted to help them get more confident with the STEM field, which desperately need more diversity. Furthermore, focus has been on accessibility.

During the talk, we will explain what we did during the project and the outcomes.

The activities involved:

* an introduction to OpenStreetMap, ID editor, licenses, but also Wikimedia projects

* a phase of physical mapping, in which we visited the city centre of Bari using field papers and StreetComplete to map shops/restaurants/cafes and their accessibility status, accessibility ramps and other useful information to add both on OpenStreetMap and on Wikivoyage

* the editing of OpenStreetMap and Wikivoyage to add the information gathered.

In addition to what explained in the abstract, we would like to underline how the experience benefited equally the territory, thanks to the improved geographical information and also tourism information, the students, because of the worthwhile experience they have gained and the rediscovery of the STEM field, and the community, not only because of the new information added but also due to the increment (even if little) of diversity in contributors.

As explained, we did not contribute only to OpenStreetMap, but also to Wikivoyage, the official, non-commercial and freely-licensed (CC-BY-SA) sister site of Wikipedia for tourism guides, and to Wikimedia Commons, the free multimedia database of Wikimedia projects. The two of us, Ferdinando Traversa and Rosa Colacicco, are respectively the regional coordinator for Apulia and the OpenStreetMap coordinator for Apulia of Wikimedia Italy/OpenStreetMap Italy, so the project was endorsed and sponsored by the organisation. This project is consequently also an example of synergy between OpenStreetMap and Wikimedia projects, strenghtened by the fact that in Italy chapters for WMF and OSMF coincide. Rosa Colacicco is also the president of the YouthMappers@UniBA, the local group of YouthMappers which collaborates with the department of Geology of the University of Bari.

In conclusion, we would like to present this experience as a case study in order to enable others to try a similar pathway.

about this event: https://2022.stateofthemap.org/sessions/GCLYZE/

Every day millions of users experience delightful features on Bing Maps. Each user, regardless of their technical background, possesses a wealth of local knowledge that can help improve map data which for many country regions comes from OpenStreetMap. The common OSM editorial tools iD & JOSM are far too advanced for our users. Hence, we embarked on a mission to build a very simple tool - MapBuilder - that can guide users to volunteer their local knowledge to update map data via a set of guided screens. This talk will focus on the following:

- First features

- Building community engagement

- Identifying data gaps

- Potential risks and mitigations

about this event: https://2022.stateofthemap.org/sessions/B7VADW/

This talk will look at how we can ensure that a user space application was started successfully. We will provide an overview of how an application is started, looking at the glibc and the Linux kernel. Then we'll identify potential problems which could affect the application startup, both at application startup time and at build time. And finally we'll present our solutions to the identified problems, including ensuring memory integrity and unwanted interactions from the rest of the kernel.

about this event: https://programm.froscon.org/2022/events/2826.html

Vollautomatisiertes Provisionieren, deklarative Infrastruktur, minimalistische Laufzeitumgebung, wartungsfreie Systeme, automatische Updates – Mechanismen, die das Leben von Admins und Cluster Operators weniger aufregend gestalten. Der Vortrag erläutert das Konzept “Container-optimiertes Linux” und gibt einen Überblick über die wichtigsten Features und Arbeitsabläufe sowie deren Umsetzung in Flatcar Container Linux. Abgerundet wird die Präsentation mit einer kurzen Live-Demo einer Flatcar-Provisionierung.

Das Konzept “Container Linux” wurde ursprünglich von CoreOS beim ersten Release dieses Projektes um 2013 herum definiert. Das Projekt wurde leider 2020 beendet. Flatcar, begonnen als “friendly fork” von CoreOS, ist nach dessen Abkündigung zu seinem “spirituellen Nachfolger” gereift und ist nun eine vollständig freie und auf Open Source Software basierende Distribution, entwickelt von und für unsere Community.

Containerzentrische Systeme wie z.B. Kubernetes bieten durch ihre Sandbox eine strikte Trennung von Betriebssystem / Laufzeitumgebung und Applikationen. Wir nutzen diese Trennung in Flatcar, um das Betriebssystem ähnlich automatisiert provisionieren, konfigurieren, betreiben und aktualisieren zu können wie z.B. Kubernetes-Admins das von ihren Applikationen gewohnt sind, und stellen diese Mechanismen im Vortrag vor.

Der Vortrag richtet sich an Administratoren und Ops sowohl von Einzelsystemen als auch von Clustern mit Container-/ Kubernetes-workloads und an alle, die sich dafür oder für automatisierte Infrastruktur interessieren.

about this event: https://programm.froscon.org/2022/events/2774.html

In einem typischen IoT-Szenario sammelt man Daten aus diversen Datenquellen, muss diese fltern/verarbeiten, die Ergebnisse in Datenbanken abspeichern, bei definierten Zuständen Ereignisse generieren/weiterleiten und vielleicht noch dutzende andere Dinge tun. Als Softwareentwickler ist man dann schnell in der Versuchung ein oder mehrere Programm zu schreiben (...und irgendwann den Überblick zu verlieren). In diesem Vortrag wird das Softwaretool „Telegraf“ vorgestellt, welches angetreten ist, Datenströme, zentral konfigurierbar, in geordnete Bahnen zu lenken.

Schon mal was vom „EVA-Prinzip“ gehört? „EVA“ steht, im Kontext der elektronischen Datenverarbeitung, für „Eingabe – Verarbeitung – Ausgabe“ und beschreibt das Grundprinzip, nach welchem die allermeisten Computerprogramme arbeiten. Das, von der Firma Influxdata Inc. bereitgestellte und frei benutzbare (MIT-Lizenz) Softwaretool „Telegraf“ ist quasi zu 100% ein typischer Vertreter dieses Grundprinzips. Daten aus den unterschiedlichsten Quellen können, in Abhängigkeit ihrer Inhalte, konvertiert, verändert, zusammengefasst etc. und gegebenenfalls wiederum an verschiedenste Ziele weitergeleitet werden.

Telegraf unterstützt, neben der „hauseigenen“ Zeitreihendatenbank InfluxDB, zahlreiche gängige Datenquellen, kann zeitgemäße Datenformate verarbeiten und an die unterschiedlichsten Datensenken weiterleiten, quasi wie eine Ampelanlage auf einer vielbefahrenen Kreuzung. Ermöglicht wird dies durch die über 300 derzeit verfügbaren Plugins, welche durch eine zentrale Konfigurationsdatei parametrisiert werden können. Reichen die Möglichkeiten der Plugins für den konkreten Anwendungsfall nicht aus, spricht nichts dagegen, eigene Erweiterungen zu

programmieren und entsprechend einzubinden.

Der Vortrag erklärt die Prinzipien und Möglichkeiten von Telegraf. An Hand gängiger Szenarien aus dem IoT-Kosmos, werden Anregungen für eigene Experimente gegeben.

about this event: https://programm.froscon.org/2022/events/2748.html