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OSS

Zathura – An Open Source Document Viewer for Linux

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Zathura is a plugin-based customizable and functional document viewer. It features a minimalistic user interface and is built to be light on resources. The feature that makes Zathura stand out is its flexibility as it can be customized all the way from its UI to its functionality.

Zathura got its name from the 2002 book Zathura which had a film adaptation, Zathura: A Space Adventure, released in 2005. A lot of its usage focuses on keyboard interactions due to its Vi-type key bindings – a feature that has made it popular among veteran Linux users.

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5 Best Free and Open Source Tox Clients

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Tox is a peer-to-peer instant-messaging and video-calling protocol that offers end-to-end encryption. The stated goal of the project is to provide secure yet easily accessible communication.

The Tox core is a library establishing the protocol and API. User front-ends, or clients, are built on the top of the core. Anyone can create a client utilizing the core. Tox uses the cryptographic primitives present in the NaCl crypto library, via libsodium. Specifically, Tox employs Curve25519 for its key exchanges, xsalsa20 for symmetric encryption, and Poly1305 for MACs.

Tox is licensed under the GNU General Public Licence 3.0.

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Managing the open source product roadmap

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In the first four parts of this series on the open source software supply chain, I explored open source as a supply chain, what a product is, what product managers do, and ways to differentiate open source software products from their upstream projects. In this article, I will discuss the essential elements of a roadmap and how to determine them.

Customers, as well as the sales and marketing teams who talk to them, love a roadmap. It gives them a sense of what is realistic and what is not. The roadmap is also at the heart of a product. Maintaining an up-to-date product roadmap keeps the product team focused on the customer and aligned around delivering what they need. The roadmap communicates both the strategic direction for a product and the company's perspective on problem solving.

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Also: 9 underrated responsibilities of an open source community manager

John Goerzen: Facebook’s Blocking Decisions Are Deliberate – Including Their Censorship of Mastodon

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In the aftermath of my report of Facebook censoring mentions of the open-source social network Mastodon, there was a lot of conversation about whether or not this was deliberate.

That conversation seemed to focus on whether a human speficially added joinmastodon.org to some sort of blacklist. But that?s not even relevant.

OF COURSE it was deliberate, because of how Facebook tunes its algorithm.

Facebook?s algorithm is tuned for Facebook?s profit. That means it?s tuned to maximize the time people spend on the site ? engagement. In other words, it is tuned to keep your attention on Facebook.

Why do you think there is so much junk on Facebook? So much anti-vax, anti-science, conspiracy nonsense from the likes of Breitbart? It?s not because their algorithm is incapable of surfacing the good content; we already know it can because they temporarily pivoted it shortly after the last US election. They intentionally undid its efforts to make high-quality news sources more prominent ? twice.

Facebook has said that certain anti-vax disinformation posts violate its policies. It has an extremely cumbersome way to report them, but it can be done and I have. These reports are met with either silence or a response claiming the content didn?t violate their guidelines.

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Revolt: An Open-Source Alternative to Discord

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Discord is a feature-rich collaboration platform primarily tailored for gamers. Even though you can use Discord on Linux with no issues, it is still a proprietary solution.

You can choose to use Element as an open-source solution collaboration platform, but it is not a replacement.

But, Revolt is an impressive Discord alternative that is open-source.

Let me highlight what you can expect with Revolt and if it can be a replacement for Discord on Linux.

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9 Best Free and Open Source Audio Analyzers

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OSS

There is a huge range of open source free audio software available for Linux which is both mature and feature-laden. Linux has all the tools needed to be a serious contender in music production without a user having to venture into the commercial software world. Linux is a superior platform for professional audio production: rock solid, efficient, and you don’t get fleeced for software licenses. Software that creates music can often be expensive.

Linux also sports a wide range of useful audio tools. This article examines audio analyzers. This type of software lets you visualize audio spectrum for real-time signals. Some of the programs also lets you analyze amplitude and phase spectrum as well. Also, you can visualize audio spectrum in FFT spectrum, 2D spectrogram, Octave spectrum, etc. modes.

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Building an open source community health analytics platform

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Rochester Institute of Technology (RIT) has made considerable strides in increasing its presence in the open source world lately. RIT's Free and Open Source Software and Free Culture minor is the first of its kind in academia. For example, its open source programs office, Open @ RIT, has begun helping RIT faculty and staff fellows build and maintain communities for their open source projects.

These strides are driven by the students, faculty, and staff at RIT. Already, a growing number of people at the university are heading their own open projects. However, running an entirely open source project can be cumbersome. Much of this comes from maintaining a community for the project and managing data such as the project's code, issue tracking, and repositories.

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Cozy – modern audio book player

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OSS
Reviews

Linux offers a huge array of open source music players. And many of them are high quality. I’ve reviewed the vast majority for LinuxLinks.

Cozy is different to the music players we’ve covered. While it plays music the software is geared to playing audio books. Cozy is free and open source software. It’s written in Python.

Let’s see how it fares.

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A guide to simplifying invoicing with this open source tool

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Many IT projects are late, over budget, and subject to dramatic changes during development. This makes invoicing for them one of the most taxing activities in IT. It's stressful—it involves dealing with ambiguities, conflicting interests, and human error. Worse, every single decision made during the project affects how much you can bill for. When a sales guy brags—incorrectly—that your software "includes this feature," you can't invoice for the time to build it. When a support guy admits something is a bug rather than an imprecise spec, you won't be able to charge money for it.

This tutorial explains a methodology and a tool to streamline this process. Together, they help reduce frustration, improve customer relationships, and achieve a higher percentage of billable hours. The tool is free, open source, and can be applied to a wide range of organizations—from a self-employed IT guy to a multimillion-dollar software business.

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3 Best Free and Open Source CoffeeScript Static Site Generators

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LinuxLinks, like most modern websites, is dynamic in that content is stored in a database and converted into presentation-ready HTML when readers access the site.

While we employ built-in server caching which creates static versions of the site, we don’t generate a full, static HTML website based on raw data and a set of templates. However, sometimes a full, static HTML website is desirable. Because HTML pages are all prebuilt, they load extremely quickly in web browsers.

There are lots of other advantages of running a full, static HTML website.

Here’s some of the main ones...

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More in Tux Machines

Best Free and Open Source Alternatives to Adobe Photoshop

Adobe is a large multinational computer software company with over 22,000 employees. Its flagship products include Photoshop, Illustrator, InDesign, Premiere Pro, XD, Acrobat DC, as well as the ubiquitous the Portable Document Format (PDF). Their products are wrapped up and marketed as the Creative Cloud, a subscription-only way of accessing more than 20 desktop and mobile apps and services for photography, design, video, web, UX, and more. We are long-standing admirers of Adobe’s products. They develop many high quality proprietary programs. It’s true there are security and privacy concerns in relation to some of their products. And there’s considerable criticism attached to their pricing practices. But the fundamental issue regarding Adobe Creative Cloud is that Linux isn’t a supported platform. And there’s no prospect of support forthcoming. Read more

6 Best Command Line Music Players for Linux in 2021

Linux terminal is used for performing administrative tasks without having any issues. However, many people don't know that we can play music through the command line. Linux provides different CLI music players by which users can play the audio files from the terminal. CLI music players are simple to use and consume lesser memory. This article briefs about the 6 best command line Music players for Linux in 2021. Read more

Stable Kernels: 5.14.13, 5.10.74, 5.4.154, 4.19.212, 4.14.251, 4.9.287, and 4.4.289

I'm announcing the release of the 5.14.13 kernel.

All users of the 5.14 kernel series must upgrade.

The updated 5.14.y git tree can be found at:
	git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-5.14.y
and can be browsed at the normal kernel.org git web browser:
	https://git.kernel.org/?p=linux/kernel/git/stable/linux-s...

thanks,

greg k-h
Read more Also: Linux 5.10.74 Linux 5.4.154 Linux 4.19.212 Linux 4.14.251 Linux 4.9.287 Linux 4.4.289

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