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GNOME Development Leftovers

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GNOME
  • Nightly GNOME Apps and New Adwaita GTK Theme Run Through

    In this video, we are quickly looking at Nightly GNOME Apps and a sneak peek at New Adwaita GTK Theme.

  • Emmanuele Bassi: And I’m home

    Of course I couldn’t stay home playing video games, recording podcasts, and building gunplas forever, and so I had to figure out where to go to work next, as I do enjoy being able to have a roof above my head, as well as buying food and stuff. By a crazy random happenstance, the GNOME Foundation announced that, thanks to a generous anonymous donation, it would start hiring staff, and that one of the open positions was for a GTK developer. I decided to apply, as, let’s be honest, it’s basically the dream job for me. I’ve been contributing to GNOME components for about 15 years, and to GTK for 12; and while I’ve been paid to contribute to some GNOME-related projects over the years, it was always as part of non-GNOME related work.

    The hiring process was really thorough, but in the end I managed to land the most amazing job I could possibly hope for.

  • Opera Launches Built-in Cryptocurrency Wallet for Android, ManagedKube Partners with Google Cloud to Provide a Monitoring App for Kubernetes Cluster Costs, QEMU 3.1 Released, IoT DevCon Call for Presentations and GNOME 3.31.3 Is Out

    GNOME 3.31.3 is out, and this will be the last snapshot of 2018. Note that this is development code meant for testing and hacking purposes. For a list of changes, go here, and the source packages are here.

  • Firmware Attestation

    When fwupd writes firmware to devices, it often writes it, then does a verify pass. This is to read back the firmware to check that it was written correctly. For some devices we can do one better, and read the firmware hash and compare it against a previously cached value, or match it against the version published by the LVFS. This means we can detect some unintentional corruption or malicious firmware running on devices, on the assumption that the bad firmware isn’t just faking the requested checksum. Still, better than nothing.

    Any processor better than the most basic PIC or Arduino (e.g. even a tiny $5 ARM core) is capable of doing public/private key firmware signing. This would use standard crypto using X.509 keys or GPG to ensure the device only runs signed firmware. This protects against both accidental bitflips and also naughty behaviour, and is unofficial industry recommended practice for firmware updates. Older generations of the Logitech Unifying hardware were unsigned, and this made the MouseJack hack almost trivial to deploy on an unmodified dongle. Newer Unifying hardware requires a firmware image signed by Logitech, which makes deploying unofficial or modified firmware almost impossible.

  • Robert Ancell: Interesting things about the GIF image format
  • GIFs in GNOME
  • About ncurses Colors

    These colors go back to CGA, IBM's Color/Graphics Adapter from the earlier PC-compatible computers. This was a step up from the plain monochrome displays; as the name implies, monochrome could display only black or white. CGA could display a limited range of colors.

    CGA supports mixing red (R), green (G) and blue (Cool colors. In its simplest form, RGB is either "on" or "off". In this case, you can mix the RGB colors in 2x2x2=8 ways. Table 1 shows the binary and decimal representations of RGB.

More in Tux Machines

digiKam 7.7.0 is released

After three months of active maintenance and another bug triage, the digiKam team is proud to present version 7.7.0 of its open source digital photo manager. See below the list of most important features coming with this release. Read more

Dilution and Misuse of the "Linux" Brand

Samsung, Red Hat to Work on Linux Drivers for Future Tech

The metaverse is expected to uproot system design as we know it, and Samsung is one of many hardware vendors re-imagining data center infrastructure in preparation for a parallel 3D world. Samsung is working on new memory technologies that provide faster bandwidth inside hardware for data to travel between CPUs, storage and other computing resources. The company also announced it was partnering with Red Hat to ensure these technologies have Linux compatibility. Read more

today's howtos

  • How to install go1.19beta on Ubuntu 22.04 – NextGenTips

    In this tutorial, we are going to explore how to install go on Ubuntu 22.04 Golang is an open-source programming language that is easy to learn and use. It is built-in concurrency and has a robust standard library. It is reliable, builds fast, and efficient software that scales fast. Its concurrency mechanisms make it easy to write programs that get the most out of multicore and networked machines, while its novel-type systems enable flexible and modular program constructions. Go compiles quickly to machine code and has the convenience of garbage collection and the power of run-time reflection. In this guide, we are going to learn how to install golang 1.19beta on Ubuntu 22.04. Go 1.19beta1 is not yet released. There is so much work in progress with all the documentation.

  • molecule test: failed to connect to bus in systemd container - openQA bites

    Ansible Molecule is a project to help you test your ansible roles. I’m using molecule for automatically testing the ansible roles of geekoops.

  • How To Install MongoDB on AlmaLinux 9 - idroot

    In this tutorial, we will show you how to install MongoDB on AlmaLinux 9. For those of you who didn’t know, MongoDB is a high-performance, highly scalable document-oriented NoSQL database. Unlike in SQL databases where data is stored in rows and columns inside tables, in MongoDB, data is structured in JSON-like format inside records which are referred to as documents. The open-source attribute of MongoDB as a database software makes it an ideal candidate for almost any database-related project. This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you the step-by-step installation of the MongoDB NoSQL database on AlmaLinux 9. You can follow the same instructions for CentOS and Rocky Linux.

  • An introduction (and how-to) to Plugin Loader for the Steam Deck. - Invidious
  • Self-host a Ghost Blog With Traefik

    Ghost is a very popular open-source content management system. Started as an alternative to WordPress and it went on to become an alternative to Substack by focusing on membership and newsletter. The creators of Ghost offer managed Pro hosting but it may not fit everyone's budget. Alternatively, you can self-host it on your own cloud servers. On Linux handbook, we already have a guide on deploying Ghost with Docker in a reverse proxy setup. Instead of Ngnix reverse proxy, you can also use another software called Traefik with Docker. It is a popular open-source cloud-native application proxy, API Gateway, Edge-router, and more. I use Traefik to secure my websites using an SSL certificate obtained from Let's Encrypt. Once deployed, Traefik can automatically manage your certificates and their renewals. In this tutorial, I'll share the necessary steps for deploying a Ghost blog with Docker and Traefik.