Chaos Computer Club - archive feed

A recent release of new scientific datasets generated from OpenStreetMap exemplifies the need for analysis-ready repositories of OSM data that require minimal pre-processing. We created the Analysis-Ready Daylight OpenStreetMap Distribution to provide researchers with the opportunity for simple cloud-based SQL queries of nearly 1B OSM features. We demonstrate the capabilities with intrinsic and extrinsic data coverage assessments of OSM buildings globally. Despite being one of the most open and freely available spatial datasets, OpenStreetMap (OSM) data accessibility remains a challenge. Data accessibility measures how easily end-users can access and use a given dataset for their needs [1]. Because OSM data is intended to be rendered as a map or ingested into routing engines, it is often not easily consumable by data analysts. Pre-analysis workflows require OSM data to be downloaded, parsed, and converted into more common formats, which means that novice end-users of OSM may lack the experience to readily access and use OSM data in decision-making. Incorporating communities into spatial decision-making processes, such as mapping, is important because a). community members are experts on their communities and b). have a larger stake in final solutions which directly impacts their lived-experiences[2]. OSM empowers a variety of communities, including local governments[3], digital humanitarian groups[4], and even student groups [5], to help navigate and understand places of respective importance. Research by Nirandjan et al. recently lowered barriers to using OSM data as a reference dataset of critical infrastructure [6]. After categorizing and quantifying particular types of OSM features, the authors released the data in formats more common in geospatial analysis, such as GeoTiffs [6]. This article’s popularity (ranked 90th percentile on the publisher’s website) demonstrates the importance of making OSM data—and datasets derived from OSM—more accessible by means of familiar data structures compatible with common tools. If OSM data were more accessible for analysis, could we see it used in more geospatial research and innovation at large [7]? While many community-maintained tools exist to convert, extract, and download OSM data, each requires domain knowledge of the unique OSM data structure (nodes, ways, and relations). Furthermore, working at the country or planet-scale requires extensive computational resources. To further lower the barriers to entry for OSM data analysis and extraction, we created the Analysis-Ready Daylight OpenStreetMap Distribution (ARD-OSM). ARD-OSM is published on the registry of open data (RODA) on Amazon Web Services (AWS), where it is freely available to anyone [8]. This dataset containing 1B OSM features is optimized for use with Amazon Athena, a serverless interactive query engine on AWS. Additionally, ARD-OSM has resolved the OSM data format into common geometries such as points, lines, and polygons. Data also includes pre-computed valuable attributes such as length, surface area, quadkeys, and geographic bounding boxes which are stored as additional metadata. To demonstrate the analytical capabilities of this dataset, next, we will perform a global OSM building density assessment. Building density is a common metric in OSM quality research, often used to assess map coverage and completeness, such as studied by Yeboah et al. [9]. Measuring building density requires counting all of the buildings within a defined unit of spatial analysis. We use zoom-level 11 map tiles to create an analysis grid that encompasses the global built environment in fewer than 1M tiles. Then, we divide the building count by the area of each map tile to obtain the number of buildings mapped per square kilometer. Since every feature in ARD-OSM includes the zoom-level 15 quadkey of the map tile in which it exists, we can use a SQL GROUP BY expression instead of a geospatial operator for aggregation. Here is the short query used to count the number of buildings in each zoom-level 11 map tile: ```sql SELECT substr(quadkey, 1, 11) as z11_tile, count(id) as number_of_buildings FROM analysis_ready_daylight WHERE tags[‘building’] IS NOT NULL AND release = ‘v1.12’ GROUP BY substr(quadkey, 1, 11) ``` In May 2022, running in AWS region us-east-1, this query took 15 seconds and cost just USD $0.10. The results of this query show the density of mapped buildings in OSM to be highest in Europe with additional areas of high density where Humanitarian mapping campaigns have been active such as Nepal, South Eastern Asia, and isolated parts of Africa. This is consistent with the findings of Herfort et al. [10]. How should these densities be interpreted? Do denser regions have higher levels of building completeness in which most or all buildings are mapped? Building density is an intrinsic data quality measure, to further contextualize these findings, we need to perform an extrinsic assessment by comparing our results again

The opening session of the Academic Track at the State of the Map 2022 conference. about this event: https://2022.stateofthemap.org/sessions/RBZHX7/

Tui Widgets ist eine von Grund auf neu entwickelte c++ Library. Sie stellt flexibel anpassbare Elemente zur Entwicklung von Terminal User Interfaces bereit. Dabei legen wir Wert auf eine Benutzerinteraktion, die sich analog zu Desktop Anwendungen verhält. Dieser Vortrag gibt eine Übersicht über das Framework und demonstriert anhand einer Beispielanwendung, wie das Framework verwendet wird. Auf der vergangenen FrOSCon hat Martin breites termpaint vorgestellt. Darauf aufbauend zeigen wir euch dieses Jahr Tui Widgets. Es kombiniert klassisches Look and Feel in der Tradition von Turbo Vision mit QtCore als Basis für Widgets und Event-Loop. Dabei werden die Widgets über Layout-Manager angeordnet, die auf Veränderungen der zur Verfügung stehenden Fläche reagieren können. Es stehen Elemente für Texteingabe, Radio- und Checkboxen, Buttons, Listen und Menüs genauso wie Fenster zur Verfügung. about this event: https://programm.froscon.org/2022/events/2743.html

In den letzten Jahren wurde die openSUSE-Infrastruktur deutlich verbessert. Aber ist sie jetzt perfekt? Natürlich nicht - sonst hätten die Heroes (= openSUSE Admin-Team) Langeweile, und ich könnte diesen Vortrag nicht halten. Wo Leute arbeiten, passieren natürlich auch lustige[tm] Dinge. Bringt bitte Euer eigenes Popcorn mit ;-) about this event: https://programm.froscon.org/2022/events/2780.html

Auch in diesem Jahr sammeln Oliver und Michael die Themen, Kuriositäten und Aufreger des vergangenen Open Source-Jahres auf und diskutieren gemeinsam mit dem Publikum auf der Open Source Couch. Auch in diesem Jahr sammeln Oliver und Michael die Themen, Kuriositäten und Aufreger des vergangenen Open Source-Jahres auf und diskutieren gemeinsam mit dem Publikum auf der Open Source Couch. about this event: https://programm.froscon.org/2022/events/2761.html

The Small Device C Compiler (SDCC) is a free compiler targeting various 8-bit systems, including common microcontroller (µC) architectures. The SDCC-STD-UX project funded by the Bundesministerium für Bildung und Forschung aims to improve standard compliance in SDCC, in particular support for current and future C standards. SDCC targets common 8-bit µC architectures, such as the MCS-51, STM8, S08, Rabbit and Padauk, as well as some architectures now mostly relevant to retrocomputing or -gaming, such as Z80 and SM83. As a C compiler, SDCC aims to support current and future C standards, but is not up to the level of GCC or clang. For debug information, there is some basic support for ELF/DWARF. This summer, the Bundesministerium für Bildung und Forschung via the Prototypefund funds the SDCC-STD-UX effort to improve standards compliance and usability in SDCC. This ngoing effort has already resulted in substantial improvements in support for C standards that will be in the future SDCC 4.3.0 release. about this event: https://programm.froscon.org/2022/events/2819.html

Albert Einstein's quote "If you want to know the future, look at the past." couldn't be more accurate today. Many young software engineers and graduates today were born in the early 2000s and only know the struggles of early software engineering from their older colleagues, the vintage computing community or abandoned books. Further, many developers from the early 90s are retiring now and there is a danger of losing important knowledge. In my presentation we will travel back 30 years and look at how software was built from 1990 to 2020. Not in theory, but with practical examples including screenshots and actual production code from the era. [1991] "Apps" ;) for Windows 3.11 with Visual Basic 2.0 [1996] The first baby steps in "Web development" [1997] "Mobile Apps" with C++ and PalmOS [1999] Writing code for the last MacOS (Version 9) [2000] Arrival of the HTML coder ;) Web development goes mainstream [2002] C# for Windows & Windows Mobile "App development" [2003] C++ on Linux: building everything imaginable [2005] Apache, PHP, MySQL becomes mainstream [2008] Birth of "The Cloud": Developing with Google App Engine [2010] "Mobile Apps" for everyone! Building on iOS, Android & Blackberry [2012] The great merge conflict: Git sends SVN, CVS & HG to the history books [2015] Cloud & Software-as-a-Service: Goodbye InstallShield Wizard [2018] Serverless & Infrastructure-as-Code: Goodbye operating system [2020] JavaScript! How did you even survive 25 years? Sit back, relax and enjoy the ride while we fire up the flux capacitor to look at 30 years of software development and archeologically explore software history. I have experienced much of the software development history myself or through my father who built software from the 80s to the 90s. Given the time, the presentation will not go into every detail but give a glimpse and an immersion into the yesteryear of software development. It is supposed to be an insight into people interested in software development and history as well as those who might be interested to discover more about vintage computing, especially programming. While vintage computing is becoming more and more popular, vintage programming is still in it's infancy. about this event: https://programm.froscon.org/2022/events/2730.html

It’s easy to see how OpenStreetMap could be leveraged to improve the completeness and freshness of government geospatial datasets. So why aren’t all governments using OpenStreetMap? In the US, the ODbL license has prevented government agencies from using the data. Public Domain Map aims to resolve this (and other challenges) by providing a workflow that allows contributions to be used in both OpenStreetMap and public domain US Government databases. We will share the journey of Public Domain Map, and importantly, how the project is bringing together US federal agencies and open source contributors to meet this goal. about this event: https://2022.stateofthemap.org/sessions/CFVMU7/

Language barrier and the default to English puts non-English speakers at a systemic disadvantage throughout open mapping communities and humanitarian open mapping activities resulting in significant missed participation and impact. We held experimentation on language translations of key resources identified by collaborators coming from local OSM communities and we hope to share the findings in this talk. We believe that language localization will enable inclusion and participation of underrepresented groups in mapping, dialogues and other humanitarian open mapping activities. We ran small experiments with local contributors to test how localisation of resources could work in the main languages of 3 priority countries (Vietnam, Madagascar, Mozambique) and we hoped its insights would inform a self-sustainable Localization Strategy for these communities and beyond. However, the documented findings are not sufficient due to challenges encountered (including communication and technical barriers, difficulty with monitoring and evaluation, among others) during the course of the research. Hence, opportunities and recommendations will be presented for future work to explore this theme. OSM Diary post on the launch: https://www.openstreetmap.org/user/arnalielsewhere/diary/397844 about this event: https://2022.stateofthemap.org/sessions/3MMV93/

This session will provide an introduction to the OpenStreetMap operations team, what OpenStreetMap.org services we are responsible for building and maintaining. Grant recently became the OpenStreetMap Foundation's first full-time employee. Grant will present how he is helping improve reliability and security of the project's technology and infrastructure. Grant will detail how the Operations team are modernising the project's infrastructure by reducing complexity, paying-down [technical debt](https://en.wikipedia.org/wiki/Technical_debt), while reducing the need to maintain [undifferentiated heavy lifting](https://www.factoftheday1.com/p/december-23-undifferentiated-heavy). If you’re interested in what powers OpenStreetMap and make it tick, come to this session. about this event: https://2022.stateofthemap.org/sessions/D8XYDN/

During the 2019-2020 pilot supported by Microsoft, 18 million building footprints were automatically extracted from satellite imagery for all of Tanzania and Uganda. HOT found that on average, mappers working without AI assistance could map between 1000-1500 buildings per working day. For areas with high-quality AI output, providing mappers with AI-generated building footprint suggestions increased this rate to up to 2500-3000 buildings per day approximately doubling the rate at which building data could be added to OpenStreetMap, which is the crucial link for making it available to the humanitarian information management community. While doubling mapping efficiencies (100% efficiency gain) are promising, one of the greatest challenges is making sure data is converted from AI/ML to OpenStreetMap in a rapid yet responsible community-centric way (respecting existing data contributions already in OpenStreetMap). This project enabled us to take the ‘next step’ after receiving the building predictions from Microsoft by building better tools for data conflation. This is expected to dramatically reduce manual intervention. By doing this, human mappers can focus their time and skills on value-added activities: ground-truthing and validating predictions and adding local knowledge to the map not visible from satellite imagery (such as place names, location of key lifeline infrastructure, etc. We’ll describe our mapping workflow and progress updates for Kenya and Nigeria, and the specific challenges met with this dataset extracted through machine learning will be explained. Considering the growing availability of such AI-related datasets, we’ll review common errors and how we adapted to them and to other issues such as imagery offsets, heterogeneity of existing data and other context specific challenges. Eventually we’ll propose recommendations regarding this type of editing and aspects to consider before starting such imports and how to get the community involved. about this event: https://2022.stateofthemap.org/sessions/GNEJ9G/

Lighting talks registered during the State of the Map conference. ## OSM Teams: History & Updates _by Lane Goodman_ ## Bike Data Project _by Ben Abelshausen_ ## 360° imagery everywhere _by Joost Schouppe_ ## Worldwide Administrative Boundaries Dataset Project _by Albert Bautista_ about this event: https://2022.stateofthemap.org/sessions/FGDY3F/

QGIS is one of the most used Opensource GIS software with some native functionalities to work with OSM data. Either with raster layer as a basemap, or with vector, QGIS can deal with OSM data. Depending on the amount of data to work with, the need to "refresh" the data (from the main OSM database), the extent of the coverage, different plugins or technologies are possible. This presentation will try to give an overview how it's possible to use OpenStreetMap data according to different situations (Geocoding, TMS/WMS, OverpassAPI, PostgreSQL…). The presentation will show how you can contribute to QuickOSM to add some default « mappreset » to QuickOSM on GitHub. about this event: https://2022.stateofthemap.org/sessions/AKYJPG/

Die VerwalterInnen der menschlichen Ressourcen suchen daher gerne so genannte "T-Shaped-Professionals". Der senkrechte Strich des T symbolisiert dabei das Spezialwissen, während der Querstrich das Breitenwissen darstellt. Stoeps und leyrer erzählen aus dem Nähkästchen von (in Summe) über 60 Jahren IT Erfahrung, welche Themen aus ihrer Sicht in dem den Querstrich nicht fehlen sollten. Selbsterständlich stellt die Auswahl der Themen nur eine Auswahl dar, sollte dir aber einen Überblick geben, was alles notwendig ist, um zwischen KundInnen, ManagerInnen, Herstellern, (Frontend-) EntwickerlInnen, Netzwerk-, Storage-, Betriebssystem-, Middleware-, Datenbank-, Dev(Sec)Ops-, Security und vielen weiteren Teams zu vermitteln. Die VerwalterInnen der menschlichen Ressourcen suchen daher gerne so genannte "T-Shaped-Professionals". Der senkrechte Strich des T symbolisiert dabei das Spezialwissen, während der Querstrich das Breitenwissen darstellt. Stoeps und leyrer erzählen aus dem Nähkästchen von (in Summe) über 60 Jahren IT Erfahrung, welche Themen aus ihrer Sicht in dem den Querstrich nicht fehlen sollten. Selbsterständlich stellt die Auswahl der Themen nur eine Auswahl dar, sollte dir aber einen Überblick geben, was alles notwendig ist, um zwischen KundInnen, ManagerInnen, Herstellern, (Frontend-) EntwickerlInnen, Netzwerk-, Storage-, Betriebssystem-, Middleware-, Datenbank-, Dev(Sec)Ops-, Security und vielen weiteren Teams zu vermitteln. about this event: https://programm.froscon.org/2022/events/2791.html

Verschiedene Aktive aus Projekten rund um Freie Software und Digitale Souveränität berichten aus der praktischen Arbeit und von Themenkonferenzen, was sich in Schulen und an anderen Lernorten so tut, welche Entwicklungen und Herausforderungen es gibt und wo Hilfe benötigt wird. In den Schulen wird der Grundstein für (Digital)kompetenzen gelegt – was insbesondere Konzerne dazu bewegt, ihre proprietären Systeme zur frühren Kundengewinnung und -bindung zu positionieren. Ein bisschen wie David gegen Goliath wollen verschiedene Software- und Gesellschafts-Projekte auch Freie Software und damit Digitale Souveränität in einer für politische Entscheidungsträger*innen, Schulträger und Schulleitungen greifbaren Form positionieren. Für die Bildung sind die Freiheiten, die Freie Software bietet, ein klarer Vorteil: Neben wirtschaftlichen Vorteilen durch geringere Lizenzkosten und der ohne geplante Obsoleszenz größeren Nachhaltigkeit erlauben offener Code und Lizenzen vor allem auch eine Verwendung als Unterrichtsobjekt selber. So können Lerngruppen anhand der Software, die sie in ihrer realen Lebensumwelt nutzen, informatische Konzepte erlernen und sogar selber zu ihrer realen Lebensumwelt im Digitalen beitragen. In "State of the Edu" erzählen Aktive aus verschiedenen Projekten, welche Entwicklungen es bei ihren Lösungen gibt, was sie in der praktischen Arbeit im schulischen und außerschulischen Bildungsumfeld erlebt und gelernt haben und wohin die Entwicklungen gehen. Dieses Mal gehören hierzu: <ul> <li>AlekSIS®, das Freie Schul-Informations-System – Neues Release Entwicklungvon Schul-Informations-Apps mit Schüler*innen und wie die Integration mit offenen und proprietären Systemen läuft</li> <li>Debian Edu NG? – Wie sich ein zentrales Schul-Server-System im Umfeld von dezentralem, asynchronem Lernen, Tablet-Klassen und BYOD-Konzepten schlagen muss</li> <li>Bildungsmesse didacta – Vom Austausch mit Lehrkräften, Schulträgern und kommerziellen Mitbewerbern</li> </ul> Neben Berichten erzählen wir auch, wo aktive Mithilfe benötigt wird und wo man sich, technisch und nicht-technisch, einbringen kann. Denn nur gemeinsam und mit gebündelten Kräften können wir uns erfolgreich "auf dem Markt behaupten"! about this event: https://programm.froscon.org/2022/events/2790.html

Wer Software unter Linux installieren will hat seit jeher die Qual der Wahl: es stehen verschiedene Wege und Formate zur Verfügung, um neue Anwendungen zu installieren. Neben weit verbreiteten Formaten wie DEB und RPM gibt es mit AppImage, Flatpak und Snapcraft drei Alternativen, welche die Entwicklung und Installation von Anwendungen vereinfachen wollen - doch wie gut sind diese? Entwickler:innen kennen das Problem: liegt die eigene Software erstmal in einer vorzeigbaren Version vor, stellt sich die Frage der Verteilung. Seit jeher gibt es zahlreiche Möglichkeiten Software unter Linux zu verteilen. Neben dem Quellcode sind vor allem DEB- und RPM-basierte Pakete weit verbreitet. Doch genau hier schlummert nicht zu unterschätzender Mehraufwand: Pakete müssen regelmäßig aktualisiert und verteilt werden. Sollen Pakete auch Einzug in die offizielle Software-Auswahl gängiger Linux-Distributionen halten sind noch einige weitere Schritte vonnöten. Mit AppImage, Flatpak und Snapcraft gibt es drei alternative Ansätze, die es sich zur Aufgabe gemacht haben, dieses Problem zu lösen - doch wie gut gelingt das? In dieser Präsentation erarbeiten wir uns die Grundlagen der drei Alternativen und beleuchten Vor- und Nachteile. about this event: https://programm.froscon.org/2022/events/2754.html

Developing, using, and re-using Free Software is fun, but dealing with licensing and copyright information is not. REUSE changes that. With three simple steps, it makes adding and reading licensing and copyright information easy for both humans and machines. In this presentation, Lina Ceballos will guide us through the REUSE principles and will show us how to make licensing clear and simple. If you want to grant users the freedoms to use, study, share and improve your software, you have to grant those freedoms in the software licence. To encourage people to develop Free Software, we help developers to understand and apply Free Software licences. Since 2017, REUSE contributes to this goal. Any project that follows the initiative's recommendations makes copyright and licensing information readable for both humans and machines. In this way, we want to ensure that individuals, organisations and companies that are reusing code are aware of the licence terms chosen by the original author. REUSE does not "reinvent the wheel". On the contrary, it integrates seamlessly into development processes and other best practices when indicating Free Software licences. In addition, there are tools and documentation to help you get started. During this talk we will take a closer look at these tools and documentation, with the bonus of seeing a live demonstration of how to make a project compliant with the REUSE specifications. about this event: https://programm.froscon.org/2022/events/2756.html

Ein Anwendungsbeispiel für massive Parallelisierung mit CUDA für die semantische Suche in Multimediadatenbanken. Die schnelle Suche nach dem ähnlichen Bild - Große Multimediabibliotheken entstehen durch allgegenwärtige Smartphones aber auch in den Bereichen von Medien und Medizin. Sie Suche von ähnlichen Inhalten (Multimedia Information Retrieval) kann durch Semantische Graphen/Knowledge Graphen erfolgen. Graph Datenbanken sind dort jedoch langsamer als einem lieb ist. Mit dem vorgestellten Verfahren können Suchergebnisse durch massive Parallelisierung sehr schnell Ergebnisse liefern. Eine kleine Einführung in die Entwicklung für Parallelisierung Ein Beispiel für die Parallelisierung mit GPUs. about this event: https://programm.froscon.org/2022/events/2806.html

Mapping is time-consuming and requires a high workforce when it comes to keeping maps up-to-date. Mapillary brings a different approach to geospatial data collection with street-level imagery. This approach allows communities to collect geospatial data faster and cheaper. But can Mapillary-generated data be useful for enriching OpenStreetMap? In this study, Mapillary-extracted map data will be examined against ground truth to assess data quality on contributing to OpenStreetMap. In this case study the positional accuracy and completeness are assessed by benchmarking Mapillary-generated data against ground truth for street light provided by Ordu Metropolitan Municipality in the borough of Altinordu, which covers an area of 9 km2. A total number of 323 street lights were recorded in the authoritative dataset. Completeness and positional accuracies are evaluated for each street light for different camera setups. In order to compare the impact of camera type on positional accuracy, street-level imagery was collected with three different cameras: iPhone 11, GoPro Hero 7 Black and GoPro Max. Collected street-level imagery was uploaded to Mapillary by using the Desktop Uploader. Imagery which are captured from different cameras is isolated during the upload to compare map data accuracy, completeness and correctness comparison based on camera type. In this experiment, we validate the effectiveness of Mapillary extracted map data by focusing on streetlights by evaluation results based on completeness and positional accuracy key performance indicators. The best result of completeness is achieved with GoPro Hero 7 Black with 87.57% in the working area and it is followed by GoPro MAX with 77.30% for Mapillary extracted street light data . Lastly, the completeness of iPhone 11 acquired data is 71.89%. In terms of positional accuracy, our experiment shows GoPro MAX captured street-level imagery can be extracted with 2.02 m of positional error and it is followed by GoPro Hero 7 Black with 2.17 m of positional error. The average positional error of street light which is extracted from iPhone 11 captured street-level imagery is 2.21 m. This positional error is close to the precision of a single frequency GPS receiver. This experimental study shows that positioning accuracy is highly related to the GPS accuracy of the capture device, and in general, a large part of the final positional error can be attributed to this. Mapillary's 3D reconstruction is able to mitigate some of these effects. Additionally, capturing with a large field of view has a positive effect on accuracy. In this study we also validate that positional accuracy depends on various factors of the capture process; precision of GPS receiver and additionally positioning hardware, resolution and quality of the images, image capture frequency of the camera, imagery density in the working area and type of photo such as flat or 360. The overall positional accuracies are under 5m which can be a promising solution for enriching street lights data on OpenStreetMap and collecting streetlights inventory for the municipalities and governmental bodies if this data will not be used for surveying purposes or reference data, however Mapillary-generated data can be useful and time effective as complementary data with low cost collection expenses. about this event: https://2022.stateofthemap.org/sessions/DKLT7X/

What if provisioning a server was easy? No dependencies, declarative way, early-boot and no half-state provisioned instance? Let's dive into Ignition, a one-time provisioning software. In this talk, we'll cover an overview of Ignition, an open-source software developed by Fedora CoreOS and used by a couple of Linux distribution (mainly cloud oriented like Flatcar). Illustrated with configuration examples, we will start from the execution in the initramfs to a fully booted and provisioned system. Finally, we will have a look to Ignition config generation and how it's possible to contribute to the software. about this event: https://programm.froscon.org/2022/events/2776.html

opsi ist ein heterogenes OpenSource Client-Management-System. Dieser Vortrag gibt einen Einblick in die Testinfrastruktur, die mit den Jahren aufgebaut wurde, um die Entwicklung und die Releases vom opsi-Projekt zu unterstützen. Das reicht von Codetests bis zu End-To-End-Tests. Dabei wird ein Einblick gegeben, welche Technologien eingesetzt werden und wie die Test-Strategie umgesetzt wurde. CI First hat sich als goldene Regel etabliert. Aber was bedeutet das und vor allem warum ist das wichtig? Auch diese Fragen werden im Vortrag beantwortet. about this event: https://programm.froscon.org/2022/events/2795.html

Cockpit is an easy to use web-based interface for your servers which relies on a lot of external dependencies for it's functionality. This talk describes how Cockpit is tested, tests are run on multiple distributions and issues reported upstream. Cockpit is an easy to use web-based interface for your servers and is supported & tested on Debian, Ubuntu, RHEL, CentOS, Fedora and Arch Linux. Cockpit depends on a lot of external dependencies for it's features such as managing networking, firewall rules, users, containers, virtual machines and services. To make sure a new feature works well and keeps working on all supported distributions Cockpit has an elaborate custom testing CI setup. All issues found during testing are reported upstream and automatically detected when a new version fixes the issue by our CI. This talk explains how we run our tests on multiple distributions, write tests so they work on all distributions and constantly test new releases and updates of distributions. Also included is how our npm dependencies are tested and how we make sure to not introduce UX regressions by having pixel tests, in general this talk discusses the whole CI architecture of Cockpit, how we keep our CI under control from running too long and report and track issues upstream. about this event: https://programm.froscon.org/2022/events/2779.html

Dieser Vortrag beleuchtet die Anforderungen der Datenschutzgrundverordnung an die Betreiber:innen von webbasierten Diensten. Menschen die eine Instanz von <em>was auch immer</em> für <em>wen auch immer</em> aufsetzen, erfahren, worauf sie achten müssen und welche Handlungsschritte noch notwendig sind, wenn das eigentliche Setup schon steht und so eigentlich produktiv gehen könnte. Entwickler:innen erfahren, wie sie ihre Software so bauen können, dass sie möglichst einfach DSGVO-konform einsetzbar wird. Freie Software wird in aller Regel als besonders datenschutzfreundlich beschrieben. Sie ist per Definition transparent und ermöglicht ein hohes Maß an Kontrolle. Die Abwesenheit von datengetriebenen Geschäftsmodellen führt zu Implementierungen, bei denen Datensparsamkeit eher die Regel als die Ausnahme ist. Optimale Voraussetzungen also, um datenschutzkonforme Alternativen zu den proprietären Cloud-Diensten zu schaffen. Aber leider reicht der DSGVO das nicht. Um zu verstehen was die Datenschutzgrundverordnung von uns will, müssen wir die dort verankerten Rollenkonzepte entwirren. Als Betreiber:in einer webbasierten Anwendung wird man zum „Verantwortlichen“ oder zum „Auftragsverarbeiter“ – je nachdem für wen man das Ganze betreibt. Und Datenschutz macht man nie für sich selbst, sondern die „Betroffenen“. Das können aktive User sein, aber auch die vermeintlich anonymen Besucher, die nur bis zur Login-Maske kommen. Weil Internet=IP. Und IP-Adressen sind per Definition personenbezogen. Sagt jedenfalls die DSGVO. Daher kommt man im Fall von webbasierten Anwendungen nicht um formellen Datenschutz à la DSGVO herum und übernimmt in einer der beiden Rollen Verantwortung dafür, was die Software die man da betreibt so tut. Neben den üblichen Anforderungen aus dem Bereich der IT-Sicherheit muss man ein hohes Maß an Transparenz herstellen und sich Gedanken machen, warum man welche Daten hat. Und falls mal jemand mehr wissen will, muss man auch genauer nachschauen können und im Zweifel für die Person im eigenen System etwas aufräumen. about this event: https://programm.froscon.org/2022/events/2769.html

The Amazon Forest, its traditional peoples, and riverside communities represent an immense challenge for official cartography, due to scale and extension factors. This presentation aims to show the experiences of the Unificar Ações e Informações Geoespaciais (UAIGeo) chapter of the Brazilian YouthMappers in mapping riverside communities in the Amazon rainforest region, focusing on the city of Tefé and its islands. Due to its female leadership role and the goals of empowering young women in geospatial and technical skills, the presentation emphasizes the importance of engaging and encouraging female students to link mapping and female empowerment. In Brazil, it is still an immense challenge to produce official cartography on the regional and local scale due to the extension of the territory, the number of municipalities (5,568 plus the Federal District), and the expensive cost of producing the mapping. Such factors are more significant in the Northern Region of the Country, where an important part of the Brazilian Amazon Forest and many traditional peoples and riverside communities are located. Many of the riverside communities do not have records in documents about their ancestral knowledge, cultures, territories, etc. Their knowledge and stories are transmitted orally and, despite the importance of this legitimate source of data, an important amount of information can be lost over time [1] The distances between riverside communities, in addition to the small geographic space the built infrastructure occupies, make them invisible in many official mapping. The riverside buildings are not visible in official mappings and have cultivated areas between 0,2 to 3 hectares. In this context, collaborative mapping through open data platforms is one cheaper possibility to mitigate the lack of maps in Brazilian municipalities. The OpenStreetMap (OSM) platform emerges as promising because it has wide territorial coverage of high-resolution images, which makes it possible to view the communities on the local cartographic scale. This presentation has the aim to show the experiences of the Brazilian YouthMappers’ chapter Unificar Ações e Informações Geoespaciais (UAIGeo), in partner with Centro de Estudos Superiores de Tefé-Universidade do Estado do Amazonas - CEST/UEA, within mapping riverside communities in the Amazon rainforest. In its initial phase, the project received support from the Everywhere She Maps program, due to its women leadership role and goals of empowering young women in geospatial and technical skills. Globally, on average 35% of female students entering the university choose fields in science, technology, engineering, and math - STEM [2]. The Global Gender Gap Report 2020 shows that Brazilian women represent just 18% of employees in technological jobs, a percentage below the global average [3]. Additionally, according to a study that has analyzed OSM users and the manifested gender, by 2019 female participation reached 13% [4]. For this reason, this presentation emphasizes how important it is to engage and incentivize women’s participation both from external and local communities. Gender relations are important components of key forest-related issues, such as climate change and the differences in opportunities facing women in these contexts. However, there is little literature on forest and gender in Latin America, particularly in the Amazon Forest [5] The chapter have been coordinating a series of mapping activities focused on the municipality of Tefé and verified that volunteers have mapped so far 11.082 buildings in the Humanitarian OpenStreetMap Tasking Manager platform since last year. Together with local collaborators from CEST/UEA, chapter members validated some names of communities on one of Tefé’s islands. Chapter members carried out fieldwork in Tefé to know the local reality and some places that they had mapped. They also conducted studies in São Luís do Macari, a community that is located on an island in the middle of the Solimões River. Results of remote and fieldwork activities will be presented while at the same time emphasizing the importance of engaging and encouraging female students to link mapping and female empowerment. * [1] De Magalhães Lima, D.; Ferreira Alencar, E. (2001). A lembrança da História: memória social, ambiente e identidade na várzea do Médio Solimões. Lusotopie, v. 8, n. 1, p. 27-48, (Accessed April 18, 2022). * [2] UNESCO. (2019). Descifrar el código: La educación de las niñas y las mujeres en ciencias, tecnología, ingeniería y matemáticas (STEM)—UNESCO Digital Library. https://unesdoc.unesco.org/ark:/48223/pf0000366649 (Accessed April 18, 2022) * [3] GGGR. Global Gender Gap Report 2020. World Economic Forum, Geneva. 2020. Available in: https://www3.weforum.org/docs/WEF_GGGR_2020.pdf (Accessed Feb. 23, 2022) * [4] Gardner, Z., Mooney, P., De Sabbata, S., & Dowthwaite, L. (2020). Quantifying gendered participation in OpenStreetMap: Responding to theories of fem

OpenStreetMap Foundation Board Ask Us Anything (i.e. AMA). We will take questions from the audience, or other questions that people can submit before the event, and we will talk about and answer them. We can talk about the past actions of the board, and what future plans we have. This is a chance to ask the OSM Foundation Board questions, to engage with the board. Let’s have a conversation about the Foundation, the Board and how all the parts work together. If you know nothing about what the board is doing, this is a chance to find out. Find out what the Foundation does and doesn’t do, what it can and can’t do. Find out how you can help, how you can get involved. The Board is committed to openness and wants to engage with the community. about this event: https://2022.stateofthemap.org/sessions/AT3YM7/

OSM is almost 20 years old and we already achieved so much. What if the governance of the project as well as our relationship to time and money were the biggest obstacles to ensure a bright future? Let’s discuss the priorities to unleash the full potential of our community. about this event: https://2022.stateofthemap.org/sessions/A8JLUY/

Our digital champions project in Tanzania has transformed the lives of 353 women who had never used a smartphone before into confident advocates of mapping in their extremely marginalised communities. They have delivered training to over 9000 women in these villages and reported over 470 cases of gender based violence in their villages to the police and social services who have then used the maps to find and protect these women. Giving local women and youth the digital tools to protect their sisters in their communities is an extremely cost effective, long term solution to build up our mapping community and make it more inclusive, and share lessons learnt We will talk about the digital champions project which has transformed the lives of 353 women who had never used a smartphone before into confident advocates of mapping in their extremely marginalised communities. They have delivered training to over 9000 women in these villages and reported over 470 cases of gender based violence in their villages to the police and social services who have then used the maps to find and protect these weomen. We will show giving local women and youth the digital tools to protect their sisters in their communities is an extremely cost effective, long term solution to build up our mapping community and make it more inclusive, and share lessons learnt about this event: https://2022.stateofthemap.org/sessions/FJWKRV/

Der Vortrag erklär anhand von Beispielen aus den Berichten der Beauftragten für den Datenschutz, welche Fehler bei der Programmierung und Anwendung von Software gemacht und durch die Datenschutzbehörden beanstandet wurden. Im Anwendungabereich der Datenschutzgrundverordnung sind durch die Verantwortlichen die datenschutzrechtlichen Grundsätze einzuhalten. Der Vortrag erklärt, warum es die datenschutzrechtlichen Grundsätze gibt und zeigt exemplarisch anhand von Beispielen aus den Datenschutzberichten der (Landes-) Beauftragten für den Datenschutz (und die Infromationsfreiheit) welche Fehler bei der Programmierung und Anwendung von Software gemacht und durch die Datenschutzbehörden beanstandet wurden. Die Nichtberücksichtigung der datenschutzrechtlichen Vorgaben stellt für den Softwareentwickler unter Umständen auch ein rechtliches Risiko trotz weitestgehendem Haftungsausschluss durch FOSS-Lizenzen dar. Wann dies der Fall ist, wird abschließend kurz erläutert. about this event: https://programm.froscon.org/2022/events/2794.html

Smartphones and other mobile devices are ubiquitous and while we're picky about free software on our laptops, desktops and servers lots of us have a truck load full of proprietary software in their pocket every day. Does it have to be that way? How would a way out of the duopoly look like? What are the upsides? What works today? What are the gaps? How can you get involved? about this event: https://programm.froscon.org/2022/events/2797.html

Kann es nicht vorteilhaft sein sich mit anderen Open Source Projekten oder sogar mit Unternehmen zu vernetzen und sich auszutauschen? Das wird jetzt zwischen Linux-Distributionen und IBM beim Open Mainframe Project praktiziert. Daneben gibt es viele weitere Möglichkeiten sich auch als Unternehmen in Open Source Projekten einzubringen. Das wird hier im Vortrag mit integriert. Open-Source-Projekte – besonders Linux-Distributionen – zeichnen sich durch die Zusammenarbeit in Upstream-Projekten aus. Auch für Unternehmen kann es von Vorteil sein, zu Open-Source-Projekten beizutragen. Man baut seine Partnerschaften aus, arbeitet über Communities mit anderen Unternehmen zusammen und kann so auch etwas für die Kunden tun. Aber ist es auch möglich, dass mehrere Linux-Distributionen sich für die Zusammenarbeit mit Unternehmen in Arbeitsgruppen organisieren? Das wurde von openSUSE, Fedora und Debian für eine bessere Zusammenarbeit mit IBM über das Open Mainframe Project als Beispiel organisiert. In diesem Vortrag geht es um die Vorteile für Unternehmen zur Zusammenarbeit mit Open Source Communities wie auch die Möglichkeiten und Vorteile der Zusammenarbeit zwischen Open-Source-Projekten. about this event: https://programm.froscon.org/2022/events/2799.html

The Ahrtal flood disaster and a war in Europe will obviously increase requirements on geo-redundancy. OpenSource via MARS can help. Experiences from 1&1 IONOS datacenters running millions of customers and petabytes of data will inform you on current state and on future trends. This talk will discuss more possibilties for datacenters, how geo-redundancy can be built and operated, and in long term. The Linux kernel module MARS is now replicating more than 10 petabytes over long distances, running on thousands of servers. A future version shall be able to replace iSCSI inside of any geo-redundant datacenter, providing location transparency of /dev/mars/mydata by local handover while the virtual device can stay mounted, in addition to geo-redundant long-distance handover and failover. about this event: https://programm.froscon.org/2022/events/2741.html

Pull requests sind ein Weg, den Software-Entwicklungsprozess zu organiseren und robuster zu gestalten. Sie sind besonders nützlich bei lokal und zeitlich verteilter Zusammenarbeit, in globalen Open Source-Projekten wie auch in kleineren Unternehmen. Aber was macht gute Pull Requests aus? Gutes Reviews? Und wie können wir den Weg für beide ebnen? Malte erzählt, was er von Open Source-Projekten zum Umgang mit Pull Requests gelernt hat, welche Synergien sich in seinem Entwicklungsprozess ergeben haben und gibt ein paar weitere Ideen zur Einrichtung der Umgebung, zum Schreiben, zum Reviewen und zum Mergen von Pull Requests. about this event: https://programm.froscon.org/2022/events/2728.html

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

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

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/

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/

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/

Über GraphQL Federation können Microservices in eine umfassende API zusammengefasst werden und dennoch individuelle Clientanfragen verarbeiten. Für einen führenden Video on Demand (VoD) Anbieter ist es wichtig, auf dem Abspielgerät präsent zu sein, das der Kunde verwendet. Um die Top 20 der Abspielgeräte mit den neusten Features zu versorgen, muss die Plattform im Hintergrund die notwendigen Daten zügig anbieten und Redundanzen in der Entwicklung vermeiden. Microservice-Architekturen sind heute der Standard in digitalen Plattformen. Jedoch gibt es einige Herausforderungen, um z. B. Feature-Teams eine universelle API effektiv umzusetzen. GraphQL als Orchestration Layer mit den Microservices verhilft Frontends zu einem optimalen Zugriff auf die benötigten Daten. Der Talk erklärt die Vorteile von Microservices für digitale Plattformen und wie GraphQL dazu beitragen kann - nicht nur für VoD-Dienste. about this event: https://programm.froscon.org/2022/events/2805.html

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

Es muss ein HAL sein - als UI für den eigenen digitalen Sprachassistenten. Ein Erfahrungsbericht von der Idee bis zur fertigen Umsetzung (natürlich mit einer Live Demo). Am Anfang (ca 2017) war es nur ein per USB angeschlossenes RFID-Lesegerät, um über entsprechende RFID-Karten dann Hörspiele über ein Soundsystem für den Sohnemann zu starten. Im Laufe der Zeit wurde daraus das Ziel einen FOSS basierten digitalen Sprachassistenten zu erschaffen - natürlich in Gestalt eines HAL9000. In diesem Vortrag wird der lange Weg vom Design des 3D-Modells über die Auswahl der Software (und den Hintergründen zu erfolgten Umstiegen), der Hardware (ebenfalls mit ein paar Kursänderungen) und allem Anderen was irgendwie dazu gehört. Der Vortrag könnte sowohl als Crash-Course in die Thematik <i>Digitaler Sprachassistent</i> verstanden werden, wird aber auch für Erfahrenere in den Themenfeldern einiges Interessantes in petto haben. about this event: https://programm.froscon.org/2022/events/2760.html

<p> 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. </p> <p> 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. </p> <p> 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. </p> <p> 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. </p> 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

Open data is a trend in Taiwan, and some community members of OpenStreetMap or Wikidata are importing or merging information they obtain from government sources into the corresponding OpenStreetMap and Wikidata Database. The village dataset is available by sharp file and detains metadata with reference numbers, and the river dataset covered big rivers in Taiwan. In this talk, I will talk about the process of importing data, maintaining data, and linking each data not only with the government source but also to OpenStreetMap and Wikidata. I will not only talk about dealing with the village and river datasets but also with other import project in Taiwan, like Taichung address dataset import, schools, kindergarten, etc. And I will also have a short introduction of Taiwan community activities, both OpenStreetMap and Wikidata. Recently OpenStreetMap Taiwan got funded by Wikimedia Foundation to improve Taiwan mapping data and also Wikimedia related projects like Wikidata, Wikipedia, Wikivoyage, Wiki Commons, etc. about this event: https://2022.stateofthemap.org/sessions/TJMAQT/

This talk will cover the growing New York City OpenStreetMap community and our efforts at coordinating mapping our cities’ quirks into the OSM data model. New York City (and much of America) has sidewalks that end abruptly, intersections without proper pedestrian control, uncontrolled slip lanes, bike paths that lead into stairways, crossings without curb cuts. Mapping these features helps NYC pedestrians analyze conditions, report and advocate for changes. he New York City community is interested in keeping track of pedestrian features throughout the five boroughs. Both to improve routing and to keep track of dangerous or poorly designed infrastructure. While NYC is required by law to create accessible conditions, our sidewalk mapping today helps find areas that do not yet meet those standards. OpenStreetMap contains the most up to date resources for the city’s bike lane network, including planned projects. Discussions helped standardize when to draw bike lanes separated from the road lane (when there is a barrier) and coordinate responses to new construction (the race to survey the new Brooklyn Bridge bike lane.) While the city may consider a certain segment protected, OpenStreetMap’s “on the ground rule” brings our maps closer to reality. In 2021 the community came together to focus on completing sidewalks in Flushing, Queens. In 2021 and 2022 the community mapped bicycle racks using fieldpapers. These efforts show how to organize support to improve a single area, and bring in new mappers with an activity focused on a single goal. Completed areas can then drive analysis. I will share examples of areas that have been mapped and where they brush up against the guidelines for bike and pedestrian mapping. I will also share analysis driven by this mapping. Finally there will be anecdotes having reported issues to the city and keeping track of progress with OpenStreetMap. about this event: https://2022.stateofthemap.org/sessions/YAYNSB/

We're all now experiencing that remote working and virtual conferencing are important tools to stay connected. Not just in current circumstances but also in the wider future. That's why it's important to offer an easy-to-use, efficient, and quick replacement. Nextcloud is a platform for complete online collaboration and communication and can help to quickly adept and stay connected. Nextcloud is built by Nextcloud GmbH that has employees in home-offices in 15 countries and the Nextcloud Community which is spread all over the world.This talk gives an inside look at how Nextcloud GmbH works together with the Nextcloud community-building Nextcloud. about this event: https://programm.froscon.org/2022/events/2731.html

LOWA - LibreOffice WebAssembly. Most recent updates, working code, and ample stories of how we got to have LibreOffice run natively in a browser. about this event: https://programm.froscon.org/2022/events/2796.html

Every day hundreds of people sign up for OpenStreetMap. We have several active OpenStreetMap communities, communities that are struggling to sustain themselves and at the same time, there are countries with no existing OpenStreetMap communities despite having contributors from those countries. This idea of a community playbook is to act as a guide for persons interested in starting up an OSM community and sustaining OSM communities with lessons drawn from existing communities. The community playbook is based on 4 themes; Identifying local community issues, attracting and engaging students, Connecting contributors motivation to mapping and Training about this event: https://2022.stateofthemap.org/sessions/U77MUX/

The MapOSMatic web frontend allows to create printable maps from OSM data interactively. This is not the only way to use its rendering backend, it is also possible to directly use its ocitysmap Python library to render maps from your own Python code and a local stylesheet and database setup, or to use the REST-like API of the web frontend to send automated render requests to a MapOSMatic web instance from almost any programming language without any local setup effort. The presentation will give a short overview of both API variants, showing the different options to interact with the MapOSMatic render infrastructure programmatically. As example applications an alternative neighbourhood about this event: https://2022.stateofthemap.org/sessions/HBBZKV/