Integrating Progressive Web Apps in GNOME (Application Development and Deployment) Room: Samsung Room The GNOME Foundation funded me to work a project starting in November 2021 to make Progressive Web Apps first-class citizens in the GNOME desktop environment. Progressive Web Apps are essentially websites which make use of web standards to enable them to look and feel more like native apps: they can be installed like native apps, used without the usual browser chrome such as the address bar, and they can support some or all of their functionality offline. My project has consisted of working on a new portal to allow Flatpak'd web browsers to install web apps without adding sandbox holes, adding back support for web apps to GNOME Software, and revamping the web app support in GNOME Web. This presentation will cover the project and hopefully get you excited about PWAs on linux desktops!

HDR? in GNOME? (Application Development and Deployment)

• Benjamin Otte

Room: Samsung Room: Remote With these new buzzwords like "[high dynamic range](https://en.wikipedia.org/wiki/High_dynamic_range)", "[color management](https://en.wikipedia.org/wiki/Color_management)", "[high bit depth](https://en.wikipedia.org/wiki/Color_depth#Expansions)", "[nits](https://en.wikipedia.org/wiki/Candela_per_square_metre)", "[color spaces](https://en.wikipedia.org/wiki/Color_space)", "[wide gamut](https://en.wikipedia.org/wiki/Gamut#Wide_color_gamut)", "[tone mapping](https://en.wikipedia.org/wiki/Tone_mapping)" and more being talked about and printed onto monitors, it seems a good time somebody explained them. Especially because there is an ongoing project to bring all these things to mutter, GTK, and the rest of the platform and you might want to use these features. And if you think so too and don't want to spend lots of time reading up on Wikipedia and Gitlab issues yourself, this talk will present an overview of what all those concepts mean and how they tie together, then go over what has been happening to support them in GNOME for users and developers to make use of those features and enjoy the full spectrum of colors that modern monitors offer.

Unconscious bias & imposter syndrome workshop What are unconscious bias and imposter syndrome, and how do they affect our lives as open source contributors and maintainers? This workshop introduces these two concepts and shares stories from other open source communities. We'll conclude with an interactive exercise to explore its impact on our community and strategies to mitigate their effects on our well-being.

Font rendering in GNOME (Application Development and Deployment) Room: Bosch Auditorium GNOME has a first-class solution for rendering internationalized text since its early days, with Pango. In recent years, development of text rendering and font handling has moved more and more to harfbuzz. In this presentation, we will take a look at the shape of the text rendering stack underneath GTK, compare how it worked in the past, how it works today, and provide some outlook for how and why it might change in the future. The talk will be accessible to anyone with a general interest in typography and graphics.

What's new with JavaScript in GNOME: The 2022 Edition (Application Development and Deployment) Room: Samsung Room: Remote This talk is the latest in the yearly series about improvements made in GNOME's JavaScript platform. If you are writing code for a GNOME app or shell extension that uses JavaScript and you want to know how to modernize your code or use new language features, this talk will be interesting for you. And if you are interested in working on a JavaScript engine and want some ideas for projects to get started with, from beginner through expert level, this talk will definitely be interesting for you!

GNOME Streamers

• Daniel Garcia Moreno (endless)

Room: Bosch Auditorium Motivated by other GNOME community members, I've started to do daily GNOME live coding streams, and I think this is a great way to connect with the community and to show to the newcomers and other members the real work behind the GNOME development and to show a more personal face of the programing work. In this talk I'll talk about my motivations, what I've learned and how this live stream sessions have an impact in my contributions to GNOME, and we can start a discussion about the success of this kind of activities in the community.

Paying technical debt in our accessibility infrastructure (Application Development and Deployment) Room: Samsung Room GNOME's accessibility infrastructure has not kept up with changes in the rest of the platform. I am embarking on a project to pay its technical debt. This talk is about making it easy to work on GNOME's accessibility infrastructure, by adding modern amenities to it: continuous integration, auto-generated code instead of a hand-written protocol implementation, unit tests and end-to-end tests. It is not 2010 anymore, let's do this!

The case for Internet autonomy (and how GNOME can help). (Privacy and Security) Room: Bosch Auditorium In an increasingly volatile world, a growing number of threats to individual safety and privacy are posed by increased reliance on centralised Internet services for communication, search and information access. In today’s climate lawmakers, poorly-regulated corporations, hostile nations and conflicts impact data, security, connectivity –and the risk of losing all three– for anyone on the planet. The Free and Open Source desktop is uniquely positioned to put tools in the hands of the world’s end users which allow them to safely control their personal computing and data with trust and transparency. What technology exists that GNOME could and should be supporting for our users in regards to these threats? How can we promote personal digital safety and autonomy? What do our partners bring to the space, and what more can be done by our community collectively? These questions, along with some possible answers, will be addressed in this presentation.

Streaming GNOME from GNOME for GNOME (Community Building and Diversity) Room: Bosch Auditorium: Remote For the past 3 years, GNOME contributors have been streaming on various platforms. Viewers can now witness the creation of new features in real time, learn how a software release is done, how a bug is fixed, and so much more. Engagement with the community is branching into a new field, reaching new and bigger audiences. What caused this revolution? Let's revisit history and see what happened in these years that empowered community members to stream, how the tooling is improving, how it impacted the community engagement, and some unscientific predictions of the future of streaming within GNOME.

Using GNOME Boxes to contribute to GNOME (Application Development and Deployment) Room: Bosch Auditorium In this presentation we will dive into GNOME Boxes and discuss how it can be useful to the GNOME development process, helping developers, translators, designers, marketers, and documentation writers. We will demonstrate some standard contribution workflows combining GNOME OS and Flatpak apps, while using GNOME Boxes features such as file sharing, device redirection, display sizing, etc...

Post-Collapse Computing (Use of GNOME by Users) Room: Samsung Room: Remote The climate crisis is here. This year's IPCC report pretty bluntly states that unless we take drastic action in the next 2-3 years, civilization as we know it will collapse in our lifetimes. While we can and should fight to avoid the worst effects of this crisis while we still can, it's also worth asking: What if we fail, in part or completely? What will the world look like in 20 years? And what does it mean for free software, and GNOME in particular? In this talk I'll go over some of the scenarios we're likely to face if we don't change course, from a free software lens. What can we do today to prepare for potential disruption or collapse of infrastructure like power grids, the internet, or global supply chains? But also, what will we need in this future that free software can help provide?

The New Architecture for Printing and Scanning - What GNOME/GTK Developers Need to Know (Design of User and Developer Experiences)

• Till Kamppeter (OpenPrinting/Canonical)

Room: Bosch Auditorium With the background of all modern printers being driverless IPP (Internet Printing Protocol) printers (AirPrint, Mopria, IPP Everywhere ...) and the standard job format being PDF and not PostScript any more for years we will have changes in the architecture of the printing stack. From the [3.x series](https://openprinting.github.io/OpenPrinting-News-October-2021/#cups) on (release end-2023) [CUPS](https://github.com/OpenPrinting/cups) will not support classic printer drivers with PPD (PostScript Printer Description) files any more but go totally IPP supporting only driverless IPP printers. To not drop support for legacy printers, drivers are provided as [Printer Applications](https://linuxplumbersconf.org/event/11/contributions/1030/attachments/758/1450/Designing-and-Packaging-Printer-and-Scanner-Drivers.pdf), software emulators of IPP printers. As many driverless IPP printers are multi-function devices with a built-in scanner, scanning also gets driverless, via IPP or via eSCL, In this talk an introduction to the New Architecture is given and how it affects GNOME/GTK, what are the requirements and possibilities to support it in GNOME/GTK, and also how it works with sandboxed/distribution-independent packaging.

Strategies for increasing open-source projects visibility in underrepresented demographics (Community Building and Diversity) Room: Samsung Room Innumerable ways, open-source projects have unquestionably advanced the software industry. It has sped up innovation and provided a platform for maintainers and contributors to feel a sense of belonging to a community while collaboratively contributing to the project's development and success. Notwithstanding these growing advantages, open-source projects continue to represent a substantial issue: achieving greater demographic diversity. The importance of achieving demographic diversity in an open-source project cannot be over emphasized as it will lead to the development of building a diverse team, recruitment of maintainers and contributors from diverse race, color, gender, and other minority groups.

State of the Shell (Application Development and Deployment) Room: Bosch Auditorium: Remote With GNOME 41 and 42 released, there is much to celebrate since last year. This session will go through the improvements done since last talk, and cover highlights and latest development plans in Mutter and GNOME Shell.

Improving the Vala developer experience (Application Development and Deployment) Room: Bosch Auditorium: Remote Is Vala “dead” as was once [proclaimed](https://www.bassi.io/articles/2017/02/13/on-vala/)? Vala is a programming language created by GNOME in 2006. It is used by many components, and has been adopted by outside projects like elementaryOS. Recent years have seen renewed interest in the language. An overview of the past two years improving the Vala developer experience with new tooling and language features will be discussed.

How GNOME can help your career GROW (Encourage New Contributors) Room: Samung Room Has GNOME helped grow your career? Or, interested in learning ways to harness the GNOME community to help accelerated your skills and network? This panel discussion will highlight how GNOME has helped grow the careers of some of our community members and what tactics you can take to grow yours!

The life of WebKitGTK and their friends outside the Gnome Desktop (Use of GNOME Technologies Outside of the Desktop) Room: Bosch Auditorium A common question that arises regularly is why someone invest time and energy in WebKitGTK? What does one gets in exchange? Building WebKitGTK requires patience, let alone the challenge of understanding, and contributing to its source code. We aim to shed light and answer that type of questions. We will explain the synergia between WebKitGTK and its sidekick WPE, as well as the underlying libraries and technologies. We will explore how the developmet of one helps the other, how they are used on millions of devices that are not regular desktops, and what the desktop gets in return. We will show the optimizations we have worked on to help make powerful user interfaces relying mostly on CSS and SVG, improvements in libsoup and GStreamer. Also examples of deployments on devices with limited resources such as speakers, cooking machines, vending machines, or point of sales; and examples of challenges to overcome.

Workshop: How to Make Paint: The Original Open Source Communication Channel

• Robin Tafel

Room: Samsung Room Hosted by: Robin Tafel Let's make paints! Join GUADEC 2022 keynote speaker, Robin Tafel for this fun, hands-on workshop, where we'll learn how to make watercolor paints.

GNOME Online Accounts BOF

• Robert McQueen (Endless OS Foundation)

Room: Bosch Auditorium GNOME online accounts has traditionally struggled to copy with requirements from cloud providers on secret keys, or use of APIs. This BOF aims to look at GOA and how it can be maintained better in future.

Workshop: Usability testing workshop: Making your software easy to use

• Jim Hall

Room: Bosch Auditorium: Remote Usability testing helps you make your websites and software easier for everyone to use. In this hands-on 2-hour workshop, attendees will learn the fundamentals of usability testing, and walk through all the steps to design, create, execute, and analyze a usability test. You’ll be well prepared to do your own usability tests in your organization.

BoF: HDR - high dynamic range displays

• Benjamin Otte
• Nils deGraef
• Sebastian Wick (Red Hat)
• Matthias Clasen

Room: Bosch Auditorium The mutter and GTK teams have been working on support for HDR content for a while now. This BOF is meant to continue the discussion of status and open questions. We would also highly welcome if application developers for apps that could benefit from HDR support (image viewers, video players, etc) want to come by and discuss questions around HDR and color.

BoF: Opensource, Neurodiversity, Accessibility and How to include people with disabilities in opensource

• Rikard Grossman-Nielsen

Room: Bosch Auditorium: Remote Opensource, Neurodiversity, Accessibility and How to include people with disabilities in open source by Rikard Grossman-Nielsen, neurodiverse linux user and teacher with Aspergers and ADHD. Topics: • What are ADHD, Asperger's, Dyslexia, and Dyscalculia? • Strengths of ADHD, Asperger, Dyslexia, and Dyscalculia • What is Neurodiversity? • Four questions of the method cognitive walkthrough and what they mean in simple terms • Examples of how to make GNOME Calendar more accessible • Example of how to make Fedora Workstation more accessible • The need for a high-quality open source speech synthesis • Problem and possibilities with current accessibility standards for people with learning differences • My personal neurodiverse strengths • How to include more neurodiverse people in open source internship programs such as Outreachy and similar? • The ethics of diversity and inclusion • Examples of how to include more people with disabilities in open source projects • Final thoughts and questions from the audience