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today's leftovers

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  • Day 2: Perl is dead. Long live Perl and Raku. – Raku Advent Calendar

    ‘Perl is dead’, is a meme that’s just plain wrong. Perl isn’t dead. It’s just dead to some programmers. Complicated regexes? Sigils? There’s more than one way to do it (TMTOWTDI)? Sometimes when programmers encounter Perl in the wild they react with fear. “WTF!?”, they cry! But fear needn’t be a Perl killer. If you take the time to see past Perl’s imperfections and walk the learning curve, there are rich rewards: Perl is an imperfect but pragmatic and expressive language that for 30+ years has helped programmers get the job done.

    When Larry Wall designed Raku he fixed most of Perl’s imperfections and doubled down on Perl’s DNA. Perl values pragmatism, expressivity, and whipupitude and Raku does too! Why stop at sigils ($@%) when you can have twice the fun with twigils ($!, %!, @! etc)?

    For some programmers, however, the mere sight of a twigil can induce fear. Like Perl, Raku’s expressive power is a double-edged sword – potentially stopping other programmers in their tracks. A Raku programmer’s, “DWIM” (do what I mean) can be another programmer’s “WAT!?”

  • Deriving Patterns of Fraud from the Enron Dataset

    Enron filed for bankruptcy on December 2, 2001. Arthur Anderson, one of the “Big Five” accounting firms, which audited the financial statements was dissolved as a result of the Enron scandal.

    The Enron email and financial datasets are big, messy treasure troves of information, which become much more useful once you know your way around them a bit. Enron’s complete data may be downloaded from this link here, and the refined pickle files may be downloaded from the following Github repository along with the complete code used in this article.

  • Qt Quick MultiEffect

    If you read the recent Qt Marketplace blog post, you may have noticed that something called Qt Quick MultiEffect has become available. This blog post gives more details on what Quick MultiEffect actually is and why you might want to consider using it in your Qt Quick projects.

    Let's start with a bit of background information. Qt Graphical Effects module contains a set of effects which can be used in Qt Quick user interfaces. These cover blur, shadow, mask, contrast etc. effects which can be easily applied into Quick items. When you need a single effect, these are great. But when you want to use multiple effects at the same time, performance is not optimal, because each effect renders into FBO texture which next effect then uses as its source. Because of this separation of effects, shaders also can't share calculations and textures. So multiple Qt Graphical Effects increase GPU and memory usage a bit more than desired.

  • Graylog provides end-user advancements in latest platform update

    Server Side Public License-Beginning with v4.0, Graylog Open Source will be licensed under the Server Side Public License (SSPL). First introduced by MongoDB, the SSPL license provides similar open source rights to GPL v3, and additionally extends those rights to cover cloud and SaaS offerings.

  • WordPress 5.6 Release Candidate 2 – WordPress.org

    WordPress 5.6 is slated for release on December 8, 2020, and we need your help to get there—if you haven’t tried 5.6 yet, now is the time!

  • 4 talks from Bootlin at Live Embedded Event, December 3

    As we announced back in October, Bootlin has participated to the organization of a new online conference around embedded systems: Live Embedded Event, which will take place on December 3. The registration is totally free, and the event will propose 4 tracks throughout the day, covering a wide range of topics. We encourage you to register and participate to the event!

  • Librem 14 Status Update: EVT2 Sample Is Almost There – Purism

    We truly think of the Librem 14 as our dream laptop here at Purism, and because of that and because this is a brand new design compared to the Librem 13 we find ourselves nitpicking a bit more than usual as our design becomes a reality.

    As part of this nitpicking process we make EVT (Engineering Verification Test) samples which allow us not only to fine-tune our manufacturing process, it also allows us to physically examine the laptop. Using kill switches, using the keyboard, examining the print on the case and keyboard–all these and other tests help us refine things so that the final product is something we are proud of. In addition to the more cosmetic bugs we list below, it also helps us find larger bugs. For instance we discovered issues not just with the microphone but also an issue that limited the 2nd SO-DIMM slot to 16GB RAM. We needed to re-do the PCB to address both of these issues.

    We know a lot of people have been interested to see pictures of the actual Librem 14 instead of just renders. We have made the second round of EVT samples a few weeks ago and have finally gotten a chance to take some high-quality pictures to share. We are almost there! There are just a few more tweaks we want to make that will only add a few weeks to our shipping plan, but we think it’s important to get everything perfect. With the holidays this will likely mean shipping won’t start until the beginning of January.

  • DIY Pi KVM: An easy and cheap KVM over IP for Raspberry Pi

    Traditional IP-KVM systems may cost you hundreds of dollars. DIY Pi KVM over IP is a very simple and fully functional Raspberry Pi-based KVM over IP that you can make yourself. If you do not know what IP-KVM is, it stands for keyboard, video, and mouse. It allows you to connect to a computer or a server remotely. With this, you can fix problems such as configuring the BIOS or reinstalling the OS using a virtual CD-ROM or flash drive.

  • Sparky news 2020/11

    The 11th monthly Sparky project and donate report of 2020...

  • Utkarsh Gupta: FOSS Activites in November 2020 · utkarsh2102

    Here’s my (fourteenth) monthly update about the activities I’ve done in the F/L/OSS world.

    [...]

    This was my 23rd month of contributing to Debian. I became a DM in late March last year and a DD last Christmas! \o/

    Apart from doing a bunch of activitites like attending KubeCon + RubyConf (blog to follow!), et al and simultaneously giving my undergrad exams, I did (relatively) more work than I had really anticipated!

  • FOSS Activities in November 2020

    Second month of doing these posts. In short not much has been happening the past weeks, but that would be a slight lie.

    I have sponsored rgacognes Trusted User application. The application was posted to the mailing list, and it’s currently being voted and decided by a weeks time.

    There has also been some discussion for years about bringing debug packages into Arch. This has largely been stalled but I brought it back to life again. Essentially the problem might be solved by utilizing the new debuginfod project, and we can later distribute the packages itself when we understand the new mirror requirements. There is currently a discussion on [arch-dev-public] about it.

    Along with the above, chugging along nicely with packages. Python has been rebuilt for the Python 3.9 release. This means there hasn’t been as many python package updates. Currently everything is in testing and we should see packages move to the stable repositories early next week. I simply haven’t been bothered going through the hoops of releasing package updates into stable and then deal with a rebuild for python 3.9 for testing.

  • A New Endeavour | LINUX Unplugged 382 | Jupiter Broadcasting

    A problem that just kept getting worse and worse. What it was, and why it led us to "check in" on EndeavourOS.

  • Top 10 Tools to Automate Linux Admin Tasks – Linux Hint

    If you are a Linux administrator, or you want to become one, there are certain tasks that can become repetitive and boring. In fact, back in the day, some tasks were so incredibly repetitive that it became very hard to keep track of all the servers; this is why automation tools were created to help with such tasks. These tools help you manage and administer different servers or systems at once, and some of them allow you to do a particular task with only a click or a command line. These tools mentioned below will definitely help you automate some of the tasks of a system administrator so that you can concentrate on other interesting concepts and tasks.

    Here are the top 10 Linux Admins to boost office productivity and ease of access. Click on the links to visit the homepage.

  • Google Anthos Gets Edgy on Bare Metal Servers - SDxCentral

    Google’s Anthos hybrid cloud platform now runs on bare metal servers. The move targets enterprise workloads running in on-premises data centers or edge locations, and the announcement preempts a ton of new products and capabilities that rival Amazon Web Services (AWS) will undoubtedly rollout at its annual re:Invent, which kicks off today.

    Anthos is Google’s fully managed, Kubernetes-based platform that allows users to manage their data and applications in an on-premises environment or across cloud platforms from rivals like AWS and Microsoft. Google announced the platform at its Cloud Next event in 2018, and made it generally available last year.

  • Mandriva Linux Chronicles: Good-bye, ZaReason!

    The best laptop I have ever owned (and still own, despite being purchased 6 years ago) is a ZaReason Strata.

    It is still working great, but I was one of these days fishing the market for Linux laptops, just in case.

    When I visited the ZaReason page several months ago this year, I saw that they had very few products. This year has been tough.

  • Oil and gas industry embraces open-source collaboration, encourages greener energy solutions [Ed: Greenwashing plus Openwashing]

    Krebbers and Liz Dennett (pictured, left), lead solutions architect at Amazon Web Services Inc., spoke with Rebecca Knight, host of theCUBE, SiliconANGLE Media’s livestreaming studio, during the AWS Executive Summit. They discussed how the Open Group OSDU Forum is reinventing the energy data platform. (* Disclosure below.)

ZaReason Linux PC Vendor Closes After More Than A Decade

  • ZaReason Linux PC Vendor Closes After More Than A Decade Of Selling Linux Hardware

    After a long run and being one of the early boutique Linux PC vendors, California-based laptop/desktop/server vendor ZaReason is the latest casualty of the COVID-19 pandemic.

    ZaReason had been around since 2008 offering Linux across various laptops, desktops, and servers. In recent years we've heard less from the Berkeley based company as they battled increased competition from the likes of System76, Purism, Tuxedo Computers, and also more Linux pre-loaded devices coming directly from the likes of Lenovo and Dell. ZaReason offered Ubuntu and other Linux distributions on their systems that ranged from Intel NUC devices to customed Sager laptops geared for Linux/open-source driver support.

GNU/Linux PC company ZaReason goes out of business

  • Linux PC company ZaReason goes out of business due to COVID-19

    But one of the nice things about buying a computer running free and open source software is that there’s no shortage of community-based support including forums, chats, and social media groups. And existing customers who are unhappy with the operating system that came with with their computer (the company used to offer a choice of various Linux distros), can always download and install the operating system of their choice as a replacement.

    Meanwhile if you’re in the market for a new PC that comes with Linux pre-installed, there are a growing number of options. System76 has been around for years, and Purism has been making interesting moves in this space (including launching one of the first Linux smartphones).

    In Europe, there’s Tuxedo Computers and SlimBook (which also sells Windows computers).

    And major PC makers including Dell, Lenovo, and HP offer a number of systems with Linux these days as well.

Well-Known Linux Laptop Seller Forced to Close

  • Well-Known Linux Laptop Seller Forced to Close

    And sadly for customers of the California-based PC seller its cessation means any active warranty or planned software support has ended too.

    In a storefront notice ZaReason write: “…our product line has been getting smaller and our tech support has been slowing down to a crawl. Unfortunately, the pandemic has been the final KO blow. It has hit our little town hard and we have not been able to recover from it.”

Linux hardware vendor ZaReason has officially closed up shop

  • Linux hardware vendor ZaReason has officially closed up shop

    Always sad when a Linux-focused business fails. ZaReason announced recently that they're no longer in business.

    ZaReason aren't even a name that was heard all that often, which is part of the problem. You hear a lot about System76, TUXEDO, Slimbook, Star Labs and other Linux vendors but ZaReason gradually reduced their output and now we know why.

    In the statement they sent out it mentioned how their product line was getting smaller and their tech support was "slowing down to a crawl". So what happened? Well, "the pandemic has been the final KO blow" they said with their "little town" being hit hard and they've been unable to recover from it. They officially shut on November 24, 2020. No other reasons were given but it's likely increased competition from the previously mentioned vendors plus the likes of Dell, Lenovo and others in the Linux space also not helping them.

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More in Tux Machines

Mozilla Leftovers

  • Firefox Nightly: These Weeks in Firefox: Issue 91
  • Phabricator Etiquette Part 1: The Reviewer

    In the next two posts we will examine the etiquette of using Phabricator. This post will examine tips from the reviewer’s perspective, and next week will focus on the author’s point of view. While the social aspects of etiquette are incredibly important, we should all be polite and considerate, these posts will focus more on the mechanics of using Phabricator. In other words, how to make the review process as smooth as possible without wasting anyone’s time.

  • Robert O'Callahan: Visualizing Control Flow In Pernosco

    In traditional debuggers, developers often single-step through the execution of a function to discover its control flow. One of Pernosco's main themes is avoiding single-stepping by visualizing state over time "all at once". Therefore, presenting control flow through a function "at a glance" is an important Pernosco feature and we've recently made significant improvements in this area. This is a surprisingly hard problem. Pernosco records control flow at the instruction level. Compiler-generated debuginfo maps instructions to source lines, but lacks other potentially useful information such as the static control flow graph. We think developers want to understand control flow in the context of their source code (so approaches taken by, e.g., reverse engineering tools are not optimal for Pernosco). However, mapping potentially complex control flow onto the simple top-to-bottom source code view is inherently lossy or confusing or both. For functions without loops there is a simple, obvious and good solution: highlight the lines executed, and let the user jump in time to that line's execution when clicked on. In the example below, we can see immediately where the function took an early exit.

  • Marco Castelluccio: On code coverage and regressions

    There are two schools of thought when it comes to code coverage: those who think it is a useless metric and those who think the opposite (OK, I’m a bit exaggerating, there are people in the middle…). I belong to the second “school”: I have always thought, intuitively, that patches without tests are more likely to cause postrelease regressions, and so having test coverage decreases risk. A few days ago, I set out to confirm this intuition, and I found this interesting study: Code Coverage and Postrelease Defects: A Large-Scale Study on Open Source Projects. The authors showed (on projects that are very different from Firefox, but still…) that there was no correlation between project coverage and the amount of bugs that are introduced in the project and, more importantly, there was no correlation between file coverage and the amount of bugs that are introduced in the file.

today's howtos

Nvidia GPU Passthrough To Windows VM From Linux Host

Nvidia has now officially enabled GPU passthrough support for Windows virtual machines on GeForce graphics cards. In other words, this effectively means it?s possible to run a Linux machine and then run a virtual Windows machine within it, and hand that unfettered access to a graphics card. This is a big win for those wanting to run Windows games from within a virtual machine on your Linux desktop. They will be able to play Windows-based games using a virtual machine with GPU passthrough enabled. Read more

IBM/Red Hat/Fedora Leftovers

  • Red Hat Satellite 6.8.6 has been released [Ed: They have unpublised this since.]

    We are pleased to announce that Red Hat Satellite 6.8.6 is generally available as of April 13, 2021.

  • A brief intro to Red Hat OpenShift for Node.js developers – IBM Developer

    Container-based deployment models are the modern way to develop and deliver your applications. The most common tool for building with containers is Kubernetes, an open-source container-orchestration system for automating computer application deployment, scaling, and management. Kubernetes has helped usher in a standardized way to deploy and manage applications at scale, but it can be a sprawling, difficult beast to manage when your application becomes more mature and more complex. A company will need to have a robust DevOps team to manage a full-fledged Kubernetes-based production system. [...] My colleague, JJ Asghar summed it up nicely: “OpenShift provides creature comforts to talk to the Kubernetes “API”—at the same level of robustness—as long as you’re willing to use the opinions OpenShift brings.” The good news? Those opinions are tried and tested, enterprise-ready choices with the backing and support of Red Hat. So, what do Node.js developers need to know about OpenShift deployment? This blog post covers the “what” and “how” of deploying your Node.js application in an OpenShift environment.

  • Fedora Community Blog: Community Blog monthly update: March 2021

    In March, we published 21 posts. The site had 5,520 visits from 3,652 unique viewers. 888 visits came from search engines, while 450 came from the WordPress Android app, and 386 came from Twitter and 208 from Reddit.

  • How Red Hat data scientists use and contribute to Open Data Hub

    Artificial intelligence (AI) and machine learning (ML) drive much of the world around us, from the apps on our phones to electric cars on the highway. Allowing such things to run as accurately as possible takes huge amounts of data to be collected and understood. At the helm of that critical information are data scientists. So, what’s a day on the job look like for data scientists at Red Hat? Don Chesworth, Principal Data Scientist, gives you a glimpse into his day-to-day in a short video (aptly named "A Day in the Life of a Red Hat Data Scientist") that’s now available on our website. Isabel Zimmerman, Data Science Intern, provides a look at some of the tools she uses on the job in "Using Open Data Hub as a Red Hat Data Scientist." We’ll cover some of the highlights in this post.

  • IBM Brings COBOL Capabilities to the Linux on x86 Environment

    IBM has announced COBOL for Linux on x86 1.1, bringing IBM's COBOL compilation technologies and capabilities to the Linux on x86 environment. According to the IBM announcement, COBOL for Linux on x86 can help modernize, integrate, and manage existing applications, data, and skill sets to ease an organization’s transformation into a more flexible business. To connect business components with suppliers, partners, employees, and clients, and to position organizations to quickly take advantage of opportunities and respond to challenges in real time, COBOL for Linux on x86 can help meet these challenges and enable use of existing COBOL code while upgrading applications with the newest technologies.

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