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FOSDEM 2019

Free and Open source Software Developers' European Meeting (FOSDEM) is a non-commercial, volunteer-organized European event centered on free and open-source software development.


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FOSDEM 2019
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by Lukas Kramer At: FOSDEM 2019 https://video.fosdem.org/2019/AW1.125/horizon.webm Horizon is a from-scratch EDA package with focus on useful parts management and rule-driven design. It has already proven it's suitability for medium-complexity projects in the board design for my master thesis. This talk covers my motivation for starting a new EDA package in 2016 and the main ideas behind horizon as well as some unique features. I'll also go into my short- and long-term plans for the project....
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FOSDEM 2019
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by Van Lindberg At: FOSDEM 2019 https://video.fosdem.org/2019/UA2.220/patent_exhaustion.webm When people think of the interaction between patents and open source, the most frequent questions have to do with the existence and scope of patent licenses, either express or implied. However, patent exhaustion may end up being far more impactful than licenses. This discussion will present the results of some recent analysis of the caselaw and discuss some of the unexpected implications of recent...
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FOSDEM 2019
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by Kyle Rankin At: FOSDEM 2019 https://video.fosdem.org/2019/Janson/cloud_is_another_sun.webm You could reasonably call cloud services the crowning achievement in the world of Free and Open Source software. Linux and Free and Open Source software killed proprietary UNIXes in bare metal data centers and went on to dominate cloud services to such a point that it has even caused Microsoft to completely change their stance and embrace Linux and Free and Open Source software or risk the future of...
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FOSDEM 2019
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by Cristina DeLisle At: FOSDEM 2019 https://video.fosdem.org/2019/UA2.220/open_source_gdpr.webm Uniformisation at the European level of data protection legislation brought on the table a lot of diversity in implementation from the private sector. Before the GDPR, member states had a specific national approach on how to interpret the previous Data protection directive 95/46/EC. Also, lots of actors came in the spotlight: the National Supervisory Authority, different public and private entities...
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by Moisés Guimarães At: FOSDEM 2019 https://video.fosdem.org/2019/UD2.120/python_application_configuration.webm This talk covers oslo.config as a replacement option for ConfigParser, ArgumentParser and os.environ integrating all of their main features. Many applications and services rely on configuration data to behave according to a set of specific needs. The standard library gives us ConfigParser, ArgumentParser and os.environ used for easy configuration via plaintext configuration files,...
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FOSDEM 2019
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by Heiko Tietze At: FOSDEM 2019 https://video.fosdem.org/2019/UA2.114/libreoffice_extensions.webm The way how users can extend Libreoffice underperform the known usability from the office suite by a special kind of storage and a cumbersome way to load it. The talk will present one possible solution, open collaboration service, and show the improvements on both sides, the contributors who upload as well ideas on how users may easier customize and enhance the program. Our extensions are hosted on...
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FOSDEM 2019
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by Matias Martinez At: FOSDEM 2019 https://video.fosdem.org/2019/H.2213/ml_on_code_coming.webm Software repositories such as Git have become a relevant source of information for software engineer researchers. For instance, the detection of commits that fulfill a given criterion (e.g., bugfixing commits) is one of the most frequent tasks done to understand the software evolution. However, to our knowledge, there is not open-source tools that, given a Git repository, returns all the instances of...
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FOSDEM 2019
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by Michael Meeks At: FOSDEM 2019 https://video.fosdem.org/2019/UA2.114/online_under_the_hood.webm The Online code-base can bring LibreOffice into an iframe in your web app. Come and hear how this works, how to integrate it with your software, and about all the options and tweaks that go with this. Online uses a WOPI-like protocol, and it is simple to integrate. Come hear about the total of three REST methods you need for a simple integration. Hear about the wealth of options to control sharing...
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by Terin Stock At: FOSDEM 2019 https://video.fosdem.org/2019/UD2.120/gomidi.webm An exploration of using Go to build a hardware MIDI player, complete with floppy drive, on a minimal Linux distribution, gokrazy. Without our standard system utilities, in this talk we'll explore Go's syscall interface, as well as Linux's other interfaces, such as netlink and kobject. There will also be sweet, sweet chiptunes. In this talk, I'll be talking about the hardware MIDI project powered by Go I built in...
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FOSDEM 2019
- FOSDEM
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by Mike McQuaid At: FOSDEM 2019 https://video.fosdem.org/2019/K.3.401/homebrew_2.webm Talk discussion the major features, leadership and community changes accompanying Homebrew 2.0.0 (which will be released at or shortly after FOSDEM 2019). This talk will be a talk running through Homebrew's major changes since 1.0.0 and some of the trials and tribulations since then such as maintainers leaving, the lead maintainer position being abolished, becoming more focused and enabling the community to do...
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FOSDEM 2019
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by Sunku Ranganath At: FOSDEM 2019 https://video.fosdem.org/2019/H.2214/noisy_neighbor_insurance.webm Traditional NFVi dataplane performance testing rarely focuses on (availability, consumption) dark resources such as CPU Cache and Memory Bandwidth. Much of the Quality of Service fine tuning often leads to oversubscription ending up with shared resource contention often termed as noisy neighbor effects. We present the methodology and test scenarios using open source solutions - OPNFV-VSPERF...
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FOSDEM 2019
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by Edward Lewis At: FOSDEM 2019 https://video.fosdem.org/2019/K.4.601/dns_documenting_validator_requirements.webm Within the IETF there is an effort to document what is needed for a DNSSEC Validator to work. This talk is to "sell" this document to the developer community and to assess the desire to see the document published. An important question to discuss - how is this not another straw on the back of the camel. Room: K.4.601 Scheduled start: 2019-02-03 15:45:00+01 Source:...
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FOSDEM 2019
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by Corey Hulen At: FOSDEM 2019 https://video.fosdem.org/2019/Janson/mattermost_layered_extensibility.webm Mattermost is an open source, enterprise-grade messaging platform with thousands of contributors. At Mattermost, we set out to build a platform that would support a variety of extensions. Ranging from simple webhooks accepting curl commands, to bot and integration frameworks, a rich plug-in architecture across server and client experiences, to full access to system APIs with...
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CK: an open-source framework to automate, reproduce, crowdsource and reuse experiments at HPC conferences by Grigori Fursin At: FOSDEM 2019 https://video.fosdem.org/2019/UA2.118/collective_knowledge.webm Validating experimental results from articles has finally become a norm at many HPC and systems conferences. Nowadays, more than half of accepted papers pass artifact evaluation and share related code and data. Unfortunately, lack of a common experimental framework, common research methodology...
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FOSDEM 2019
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by Juliette Tisseyre At: FOSDEM 2019 https://video.fosdem.org/2019/H.2213/ml_on_code_automatic_refactoring.webm Every code base needs to be modernised at some point, either to reduce the technical debt or to migrate to another language. In such complex and challenging projects, automation is a key point to reduce the workload of low added-value tasks as monotonous refactoring or redundant paradigm translation. To do so with our clients, struggled with deeply in-debt code bases, we built an...
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Making furniture with Javascript An open-source community run platform for designers to experiment with parametric furniture design. by Amit Nambiar At: FOSDEM 2019 https://video.fosdem.org/2019/H.1308/furniture_javascript.webm An experimental project which uses web technologies to help design, display and make furniture. O-LAP is an open-source community run platform for designers to experiment with parametric furniture design. Designers create parametric furniture designs as plugins into the...
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FOSDEM 2019
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by Jiffin Tony Thottan At: FOSDEM 2019 https://video.fosdem.org/2019/H.2214/nfs_ganesha_weather_report.webm The NFS is old but simple protocol existed from long back and it is one of most widely accepted protocol in linux systems. NFS-Ganesha is user space nfs server. This talk will helpful to anyone who wants to run their day today application on nfs. NFS-Ganesha has plug-able architecture in which any file systems can easily added, currently it supports Gluster, Ceph(FS/RGW), GPFS etc. There...
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FOSDEM 2019
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by Wouter Verhelst At: FOSDEM 2019 https://video.fosdem.org/2019/H.1309/media_sreview.webm SReview is a conference video review system, originally written for FOSDEM 2017, that is now being used for the third time at FOSDEM 2019. It is also in active use by the debconf video team. This talk will explain the background in which it was written, and will also give a somewhat detailed explanation of its inner workings. For an explanation of the detailed UI design work we did to the review page over...
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by Megan Wilhite At: FOSDEM 2019 https://video.fosdem.org/2019/UB2.252A/modified_agent_based_architecture.webm Salt initially was designed to be an agent-base automation system. Salt SSH was added later on to allow an alternative that does not require installing a agent, and instead communicate over SSH. We will discuss how we modified the initial agent-based solution and the architectural decisions behind this work. We will talk through some of the challenges, lessons learned and what worked...
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FOSDEM 2019
- FOSDEM
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by Joris Geessels At: FOSDEM 2019 https://video.fosdem.org/2019/UD2.120/python_extending_numba.webm Over the years the Numba project has proven itself to be a pragmatic and effective tool to accelerate numerical computations significantly. Numba however puts some restrictions on the code that can be accelerated. These restrictions can force you to compromise, making your code less readable or more difficult to integrate with the rest of your code. This tradeoff makes Numba less attractive. In...
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FOSDEM 2019
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by Stephane Carrez At: FOSDEM 2019 https://video.fosdem.org/2019/AW1.125/ada_database.webm The presentation describes how Ada Database Objects helps in connecting to an SQLite/MySQL/PostgreSQL database from Ada. It explains how by mapping SQL tables in Ada records, it simplifies saving and updating database records and makes the application more safe and reliable. The presentation will briefly describe the Ada code generator (Dynamo) that is behind this. Room: AW1.125 Scheduled start:...
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FOSDEM 2019
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by Daniel Kiper At: FOSDEM 2019 https://video.fosdem.org/2019/K.3.401/grub_upstream_and_distros.webm The presentation will discuss current state of GRUB upstream development and cooperation with distributions. The first half of presentation will be focusing on last year and current development efforts. The second half will discuss cooperation between GRUB upstream and distros. In general it will show current progress in the project and main pain points. One of the goals of the presentation is...
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FOSDEM 2019
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by Magnus Hagander At: FOSDEM 2019 https://video.fosdem.org/2019/UA2.220/whats_new_in_postgresql_11.webm PostgreSQL 11 is out! Do you know what your favorite feature is yet? This talk will outline some of the bigger new features in this new version of PostgreSQL, giving you a chance to pick your favorite feature -- or to change your mind if you already had one! PostgreSQL 11 is out! Do you know what your favorite feature is yet? This talk will outline some of the bigger new features in this new...
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FOSDEM 2019
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by Andy Wingo At: FOSDEM 2019 https://video.fosdem.org/2019/K.4.201/guile3fasterprograms.webm There's a new major version of the Guile language implementation coming, and it's on average around twice as fast as Guile 2.2. Guile 3, expected to be released in Spring 2019, achieves these improvements by adding on a just-in-time compilation system to its virtual machine. Co-maintainer Andy Wingo will walk you through how we managed to achieve these improvements while not increasing startup latency,...
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FOSDEM 2019
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by Lauri Apple At: FOSDEM 2019 https://video.fosdem.org/2019/UB5.132/community_collaboration_open_source_is_the_better_way.webm Do you wish that your project team was more productive? Do you struggle with communication and project quality? Are you missing opportunities to make a bigger impact because of ineffective communication? Are you unsure why there is turnover among your most effective contributors? Do you see the benefits that collaboration brings to other projects, but are unsure how it...
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FOSDEM 2019
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by Hans Verkuil At: FOSDEM 2019 https://video.fosdem.org/2019/K.4.401/hdmi_cec.webm The past year the focus in this kernel subsystem was on bug fixing, new drivers and improved CEC debugging support. This presentation gives an overview of the current status and future work. This talk is a replacement for the cancelled talk by intel's Manasi Navare "Display Stream Compression: More pixels, faster, over DisplayPort", as intel decided not to approve travel for Manasi. Room: K.4.401...
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FOSDEM 2019
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by Jan Verschelde At: FOSDEM 2019 https://video.fosdem.org/2019/AW1.125/ada_parallel.webm Tasking in Ada provides an effective tool for shared memory parallelism. An "any time" algorithm is an algorithm that, given some more resources, will improve the accuracy of an estimate. For example, consider the estimation of Pi by a Monte Carlo method. With multitasking, the status of the running of an "any time" algorithm can be monitored without interrupts. The programming concepts...
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by Michael Jeanson At: FOSDEM 2019 https://video.fosdem.org/2019/UA2.114/containers_lttng.webm Follow up on the work that was done since last year's 'LTTng: The road to container awareness' presentation. A quick glance at the base features that were merged upstream, what is still missing and the tooling integration with container runtimes we plan to build on those features. Room: UA2.114 (Baudoux) Scheduled start: 2019-02-03 12:50:00+01 Source: https://www.youtube.com/watch?v=hra-eu6EOpY...
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FOSDEM 2019
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by Amir Fefer At: FOSDEM 2019 https://video.fosdem.org/2019/H.1308/jquery_react.webm Migration from legacy javascript to react in a well existing project isn't instant or easy, but the outcome will be worth it. How we can combine legacy with a modern front end, surviving the hybrid umbrella, improving application's client and enjoy coding ! The migration process from legacy javascript to react might take you some time and wouldn’t be easy, but the outcome will be worth it. Two years ago, the...
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by Dmitry Levin At: FOSDEM 2019 https://video.fosdem.org/2019/K.3.401/set_versioned_package_dependencies.webm Set-versioned package dependencies is a free software technology invented in ALT and implemented in ALT package repositories and distributions since 2010 to prevent breakages caused by updates of shared libraries containing incompatible changes. Every time a shared library is going to be updated, there is a chance of incompatible changes in the library that will cause breakages in some...
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FOSDEM 2019
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by Peter Smith At: FOSDEM 2019 https://video.fosdem.org/2019/K.4.201/llvm_lld.webm One of the main features of LLD, the LLVM Linker, is its high performance, frequently outperforming existing linkers by a substantial margin. In this presentation we'll take a look at why this might be? Starting with a brief description of the linker and what it must do, we'll look at how LLD approaches the problem, compare and contrast with other open source linkers and see how it performs on a selection of...
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by Belen Barros Pena and Bernard Tyers At: FOSDEM 2019 https://video.fosdem.org/2019/AW1.120/ethics_for_foss_user_research.webm This talk will be about establishing good ethical guidelines and standards for user research for the SecureDrop project. The 2 speakers have contributed to SecureDrop, an open-source software platform for secure communication between journalists and whistleblowers. This talk will be about how we established good ethical guidelines and standards for user research for...
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FOSDEM 2019
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by Joao Eduardo Luis At: FOSDEM 2019 https://video.fosdem.org/2019/H.2214/cehp_mgr_modules_fun_and_profit.webm In this talk, we will demonstrate how Ceph's ceph-mgr can be leveraged for whatever silly project we want, as long as we have a silly idea for a project and enough to time to sink into it. In our case, we will show how one could relay health status (and other information) to the user by visual, annoying means -- i.e., by plugging into a Philips Hue bridge, and changing the colors of...
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FOSDEM 2019
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by Gernot Heiser At: FOSDEM 2019 https://video.fosdem.org/2019/AW1.121/world_of_sel4.webm This talk will cover the developments of and around seL4 over the past 4 years, covering new and improved functionality for supporting mixed-criticality real-time systems, status and future of its formal verification, an overview of past and future deployments, and an assessment of the state of seL4's open-source ecosystem. seL4 is the world's first (and still only real-world suitable) operating system...
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FOSDEM 2019
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by Björn Schießle At: FOSDEM 2019 https://video.fosdem.org/2019/UD2.218A/nextcloud.webm Nextcloud enables you to regain control over your data and freely share and sync them. That's probably the part of Nextcloud most people are already familiar with. But Nextcloud takes huge efforts to go beyond handling your data and provides strong collaboration and communication tools. In 2019 most people not only want to store their data, they are looking for a integrated platform which allows them to do...
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FOSDEM 2019
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by Tim-Philipp Müller At: FOSDEM 2019 https://video.fosdem.org/2019/H.1309/media_gstreamer_1_16.webm This talk will take a look at what's been happening in the GStreamer multimedia framework as of late: What's new in the latest GStreamer 1.16 release and what features you can expect to land in the near future. It will be fairly high-level and is targeted at both application developers and anyone interested in cross-platform multimedia. GStreamer is a highly versatile plugin-based multimedia...
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Automate Kubernetes Workloads with Ansible Easy deployment, self-service provisioning, and day-2 management! by Michael Hrivnak At: FOSDEM 2019 https://video.fosdem.org/2019/UB2.252A/automate_kubernetes_ansible.webm Ansible, the familiar IT automation tool, makes it easier than ever to automate your Kubernetes cluster. This talk introduces two practical ways to define and provision complex applications using Ansible Automation with Kubernetes. Have you longed for a simple yet powerful way to...
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by Jakub Jelen At: FOSDEM 2019 https://video.fosdem.org/2019/UD2.218A/pkcs11_in_os.webm During last year, we worked hard to make cryptographic tokens usage consistent across the operating system and to improve its usability, mostly using the means of PKCS#11 URIs. This was done for both administrators and end users, in the end resulting in easier configuration of HSMs and authentication using smart cards and cryptographic tokens. I will outline what we worked on to improve the user experience...
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FOSDEM 2019
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by Shelley Lambert At: FOSDEM 2019 https://video.fosdem.org/2019/H.1302/tested_business.webm With the proliferation of OpenJDK binaries for a developer or a business to choose from, one factor in determining the selection is quality. How do you know your choice is up to snuff? The AdoptOpenJDK Quality Kit is an open and transparent verification story for OpenJDK binaries. A robust and adaptable test kit that can be utilized by any OpenJDK implementor, and represents the quality bar required by...
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FOSDEM 2019
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by Hong Phuc At: FOSDEM 2019 https://video.fosdem.org/2019/H.2215/fossasia.webm I grew up in the Mekong Delta, South of Vietnam. I first learned about free software at a FOSS event in Hanoi in 2007. I started to engage with the local Linux User Group in Singapore during my study time. Later on, I co-founded FOSSASIA - a community devoted to improving people’s lives through sharing Open Technologies and knowledge. I especially wanted to connect people together and to encourage developers from...
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FOSDEM 2019
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by Alexandru Csete At: FOSDEM 2019 https://video.fosdem.org/2019/AW1.120/sdr_makerspace.webm SDR Makerspace (https://sdrmaker.space) is a collaboration between the European Space Agency and Libre Space Foundation with the objective of bringing innovative open-source SDR technologies to space communications. Makers, open-source hackers, SDR enthusiasts, and researchers are brought together to work on small SDR hardware and software projects, focusing on rapid prototyping and development of...
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by Brad Harder At: FOSDEM 2019 https://video.fosdem.org/2019/K.4.201/tcllang.webm An introduction to the simplicity of Tcl, some use cases, and examples of tweaking-and-extending. Room: K.4.201 Scheduled start: 2019-02-02 11:40:00+01 Source: https://www.youtube.com/watch?v=36KqbE48g0E Uploader: FOSDEM
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FOSDEM 2019
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by Thomas Barabosch At: FOSDEM 2019 https://video.fosdem.org/2019/K.3.401/kleak.webm Kernel memory disclosures - also known as kernel information leaks - denote the inadvertent copying of uninitialized bytes from kernel space to user space. Such disclosed memory may contain cryptographic keys, information about the kernel memory layout, or other forms of secret data. In this presentation, we introduce KLEAK, our method to dynamically detect kernel memory disclosures. It utilizes a simple form...
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FOSDEM 2019
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by Michael Gran At: FOSDEM 2019 https://video.fosdem.org/2019/K.4.201/templatinglanguagesinteractive.webm Interactive Fiction, or "Choose Your Own Adventures" games, have been reinvigorated by new, friendly tools such as Twine. Twine and its scripting language Harlowe are a type of Templating Language, where static presentation content dominates, but is modified by small snippets of embedded code. Thus, Harlowe is in the same family of templating languages such as PHP, M4, or...
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FOSDEM 2019
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by Alexander Todorov At: FOSDEM 2019 https://video.fosdem.org/2019/H.2215/test_case_management.webm In the world of professional QA there are many proprietary test management tools but very few open source ones. This lightning talk will tell the audience why and how we resurrected Kiwi TCMS and what are we doing to make it the best open source test case management system! FOSDEM marks 10 years since the first version was released and our team will celebrate at the Open Source Test Management...
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FOSDEM 2019
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by Aleks Aubin At: FOSDEM 2019 https://video.fosdem.org/2019/UD2.218A/yunohost.webm The YunoHost and Internet Cube projects are driven by the existing complexity in deploying and maintaining a server providing basic services, such as mail and web applications. How realistic is it to fight for a free and decentralized internet if only an elite of technicians have the skill, knowledge and time to administrate and maintain servers ? Since a few years, the intention of those projects is to solve...
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FOSDEM 2019
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by John Sullivan At: FOSDEM 2019 https://video.fosdem.org/2019/H.1308/js_love_it.webm The vast majority of JavaScript carries no license or copyright notice at all, often because of concerns about optimizing bandwidth and speed, but also because of a lack of awareness. As JavaScript developers, you are well-positioned to help solve this problem -- by clearly licensing your code, by making improvements to the common tooling, and by providing important feedback on what licensing methods make the...
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FOSDEM 2019
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by Martin Kepplinger At: FOSDEM 2019 https://video.fosdem.org/2019/H.2215/skulls_coreboot.webm Skulls makes it easy to install an unlocked, up-to-date and easy to use coreboot-based BIOS on your laptop. It should be a starter drug to more advanced systems like Heads. Room: H.2215 (Ferrer) Scheduled start: 2019-02-02 16:40:00+01 Source: https://www.youtube.com/watch?v=Bj9LmJNO1iw Uploader: FOSDEM
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FOSDEM 2019
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by James Shubin At: FOSDEM 2019 https://video.fosdem.org/2019/UA2.114/containers_mgmt.webm Mgmt is a next gen config management tool that takes a fresh look at existing automation problems. The tool has two main parts: the engine, and the language. The engine has a number of resources, including a container resource. We will feature a number of demos of this resource, and discuss how the language can be used to build a custom container automation solution. The language is a minimalistic,...
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by Petr Horáček At: FOSDEM 2019 https://video.fosdem.org/2019/H.2213/vai_apply_complex_network_configuration_to_your_kubernetes.webm Classical Kubernetes workload consists of microservices, that are relatively cheap to restart and reschedule. With the expansion of containerized application technologies, heavier, longer-living applications are looking to leverage Kubernetes. These applications may keep a complex state that is hard to relocate and may have strong hardware requirement. Thus,...
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by Ecaterina Moraru At: FOSDEM 2019 https://video.fosdem.org/2019/AW1.120/panel_more_designers.webm Open discussion about getting more designers participating in Open Source projects and better understanding of the barriers that may be preventing them from contributing. We will invite several designers into the panel, to share their experience with their open source communities and provide insight on the topic. Some questions will be interactive and the public can also vote and respond,...
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FOSDEM 2019
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by Shawn Tabrizi At: FOSDEM 2019 https://video.fosdem.org/2019/H.1302/substrate.webm Substrate is an open-source framework which allows developers to easily create new, customizable blockchains. At its heart, Substrate is a combination of three technologies: WebAssembly, Libp2p and AfG Consensus. Substrate chains have three distinct features that make them "next-generation": a dynamic, self-defining state-transition function; light-client functionality from day one; and a progressive...
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FOSDEM 2019
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by Stijn Jans At: FOSDEM 2019 https://video.fosdem.org/2019/UD2.218A/bug_bounty.webm The European Commission has launched the EU-FOSSA2 project where they want to invest in the security of open source projects by running bug bounty programs against popular software. Intigriti got the first position in this contract and will be running programs for some really known open source projects. In these programs, users from the community will be invited to help testing the security of these programs...
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by Stéphane Graber At: FOSDEM 2019 https://video.fosdem.org/2019/UA2.114/containers_lxd_update.webm Over 2018, LXD's userbase grew significantly, partly thanks to it shipping on all Chromebooks. But other than merely getting more users, we've still been very hard at work introducing a number of exciting new features. The main one of those has certainly been LXD clustering which released alongside our second LTS release back in April. We've also been adding a wide variety of storage related...
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by Mary Bennett At: FOSDEM 2019 https://video.fosdem.org/2019/AW1.126/riscvsail.webm At the GNU Tools Cauldron, my colleague, Jeremy Bennett, showed how the long established GNU tool, CGEN, can be used to create an assembler, disassembler and simulator from a semi-formal description of the RISC-V architecture in Scheme (https://gcc.gnu.org/wiki/cauldron2018#cgen). However the CGEN specification in Scheme is far from rigorous by today's standards. Alastair Reid of ARM has shown how SAIL can be...
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by Karim Boumedhel At: FOSDEM 2019 https://video.fosdem.org/2019/H.2213/vai_use_kcli.webm What if you could use the same tooling to interact with libvirt, kubevirt, gcp, aws ovirt or openstack ? In this talk, I will present kcli, the tool I initially wrote to ease my work on libvirt and which evolved into a multiprovider abstraction tool We will detail installation, typical workflow and advanced features I use every day. Room: H.2213 Scheduled start: 2019-02-02 14:30:00+01 Source:...
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by Deb Nicholson At: FOSDEM 2019 https://video.fosdem.org/2019/UA2.220/foss_governance.webm There are lots of ideas out there about how to run a free and open source software project... but not all strategies were created equal. Sometimes governance "just happens" but more often than not, projects end up with some things that work and some that don't. Transparency, clear expectations and compassion go a long way towards helping you find people who support your vision but can still...
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by Allan Jude At: FOSDEM 2019 https://video.fosdem.org/2019/K.3.401/zfs_powered_magic_upgrades.webm Describe a system of using ZFS Boot Environments to quickly, safely, and atomically upgrade 100s of remote machines. Overview: * How the file system hierarchy is modified to allow the systems to be upgraded in-place * How we use ZFS to create and deploy the boot environments * Simplifying the creation of the BEs using poudriere image * Extending poudriere image to support ZFS * Using zfsbootcfg...
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by Noel Grandin At: FOSDEM 2019 https://video.fosdem.org/2019/UA2.114/clang_plugins_in_libreoffice_global_analyses_across_a_large_codebase.webm Clang plugins in LibreOffice - global analyses across a large codebase In the old days, we expended considerable effort to make our global analyses more efficient, especially when dealing with large codebases like LibreOffice. However, with the advent of modern hardware and software tools this has become largely necessary. This talk will focus on some...
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by Gildas Chabot At: FOSDEM 2019 https://video.fosdem.org/2019/UD2.120/gotensorflow.webm The goal of this talk is to guide you through the integration of pre-trained models into a Go app. From A to Z, we will build an AI image search with Go and Tensorflow. AI is on everybody's lips nowadays. Every company wants to bring it to its customers. Google, Facebook, Microsoft and more are racing against each other with research papers and open-source frameworks. From a developer point-of-view, it has...
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by Heinrich Hartmann At: FOSDEM 2019 https://video.fosdem.org/2019/UB2.252A/latency_slos_done_right.webm Latency is a key indicator of service quality, and important to measure and track. However, measuring latency correctly is not easy. In contrast to familiar metrics like CPU utilization or request counts, the "latency" of a service is not easily expressed in numbers. Percentile metrics have become a popular means to measure the request latency, but have several shortcomings,...
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FOSDEM 2019
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by Pavel Kruhlei At: FOSDEM 2019 https://video.fosdem.org/2019/H.1308/e2e_tests_cypress.webm The normal state of things with end-2-end testing is a pain: tests are flaky, slow, verbose and written by some QA guy. Let's see if I can convince you that it doesn't need to be like that, with an example of Cypress.io framework: a dev-centric open-source tool designed to make our life a little simple. Room: H.1308 (Rolin) Scheduled start: 2019-02-03 13:00:00+01 Source:...
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Ten years of Puppet installations: what now? Lessons learned, sane suggestions, outlook for the future. by Alessandro Franceschi At: FOSDEM 2019 https://video.fosdem.org/2019/UB2.252A/ten_years_puppet.webm The presenter has more than 10 years of experience in installing, configuring, designing, migrating Puppet infrastructures of any size and kind. This presentation is all about sharing experiences and knowledge on what has worked and what hasn't, ways to introduce automation and approaches to...
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FOSDEM 2019
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by Stephane Carrez At: FOSDEM 2019 https://video.fosdem.org/2019/AW1.125/ada_secureweb.webm Web application security is often underestimated, and using a secure framework can help reduce application vulnerabilities. Ada Web Application (AWA) is a web framework that leverages Ada's safety features to provide a secure environment on top of which safe applications are built. AWA is based on several Java-like technologies such as Java Beans, Java Servlet, Java Server Faces, other standards such as...
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Is a single DNS vendor enough? Discussion about complexities of multi-vendor deployment, and why you should do it anyway. by Petr Špaček At: FOSDEM 2019 https://video.fosdem.org/2019/K.4.601/dns_is_single_vendor_enough.webm Why is using a single DNS implementation not enough? Discussion about complexities of multi-vendor deployment, and why you should use multi-vendor setup anyway. In theory all the DNS server implementations do basically the same thing, so why bother with deploying and...
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FOSDEM 2019
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by Bradley M. Kuhn, Michael Jaeger, Philippe Ombredanne, Valerio Cosentino, Max Sills and Thomas Steenbergen At: FOSDEM 2019 https://video.fosdem.org/2019/UA2.220/license_tools_panel.webm License Compliance has become big business. Many proprietary tools exist, but fortunately in recent years FLOSS tools to aid understanding the licenses of codebases have been created. This panel includes developers of many of these freely available tools. We'll discuss what these tools do, if they can actually...
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FOSDEM 2019
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by Roman Kennke At: FOSDEM 2019 https://video.fosdem.org/2019/H.1302/build_gc_minutes.webm A new Garbage Collector interface has been introduced in OpenJDK 10, and has been further improved in OpenJDK 11 and 12. This talk will give a short sight-seeing tour through its design and its important interfaces and should give you an idea where to start, if you'd want to make your own Garbage Collector or want to get started with OpenJDKs existing collectors. Room: H.1302 (Depage) Scheduled start:...
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Sans IO: safe and testable network protocols Building safe, deterministic and testable network protocols by removing IO by Geoffroy Couprie At: FOSDEM 2019 https://video.fosdem.org/2019/UD2.208/rust_sans_io.webm Implementing network protocols is a hard task, especially considering the support of conflicting implementations, or long term maintenance. And it does not help that testing them often requires complex client or server setups. By removing IO from the equation, and instead working...
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ONOS Introduction Overview of ONOS, Open Network Operating System from ONF, the Open Networking Foundation. by Laszlo Papp At: FOSDEM 2019 https://video.fosdem.org/2019/H.2214/onos_introduction.webm ONOS is an open source project, written in Java that aims to deliver a software-defined networking (SDN) OS focusing on scalability, high availability, and high performance. The session will go over the ONOS modular architecture, its main tenets, use cases, and applications. It will describe the...
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Porting U-Boot to a Modular Device Booting Linux via U-Boot on a board which can be composed of several different modules by Marek Behún At: FOSDEM 2019 https://video.fosdem.org/2019/K.4.401/porting_u_boot_to_a_modular_device.webm Currently, Das U-Boot and Linux use device tree to specify how the different hardware components are connected to each other on a board. If a board has a way via which the user can plug in another hardware component, unless we are talking about universal buses like...
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by Martin Sedmair At: FOSDEM 2019 https://video.fosdem.org/2019/K.3.201/dotnet_medical_imaging.webm Medical image reconstruction is a highly demanding topic in terms of processing power, memory consumption and computational complexity. In the past several low level approaches have been conducted that improved performance but made such systems become inflexibel and reduced maintainability. This presentation shows a setup of using the .NET framework as well as a GPU-based integration in the C#...
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by Richard Brown At: FOSDEM 2019 https://video.fosdem.org/2019/UA2.114/containers_kubic.webm As the world moves more and more towards containerised solutions, a number of real questions start to appear. - What is the perfect platform for running containers atop? - How to use this platform as part of a flexible, scalable, highly available infrastructure fabric? - How to minimize the maintenance and administration of this platform at scale? All of these problems are well answered in an enterprise...
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Uyuni: A world-class open source frontend solution for managing your software-defined infrastructure with Salt https://www.uyuni-project.org/ by Pablo Suárez Hernández and Julio González Gil At: FOSDEM 2019 https://video.fosdem.org/2019/UB2.252A/uyuni_world_class_frontend.webm Uyuni (https://www.uyuni-project.org/), an opinionated fork of the Spacewalk project, provides open source lifecycle management for today's datacenter. With the help of Salt for configuration management it keeps your...
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FOSDEM 2019
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by Tomer Brisker At: FOSDEM 2019 https://video.fosdem.org/2019/UB5.132/community_back_from_the_dead.webm "Hamakor" is a non-profit that was founded in 2003 as the umbrella organization of the Israeli Free and Open Source Software community. It organized multiple events, led various public campaigns and even took part in defining some local standards. But over the years, many of the early members have moved on and the activities slowly dwindled. By 2014, all that remained was several...
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FOSDEM 2019
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by Norvald H. Ryeng At: FOSDEM 2019 https://video.fosdem.org/2019/H.1301/lateral_mysql.webm MySQL 8.0 supports SQL feature T491 LATERAL derived table, also called the "for each" loop of SQL. What is it? How does it work? How can you use it? What is it good for? Learn all about it in this talk! Room: H.1301 (Cornil) Scheduled start: 2019-02-02 14:10:00+01 Source: https://www.youtube.com/watch?v=BDSNv4xvZ5Q Uploader: FOSDEM
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