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OSS

11 Best Free and Open Source Matrix Clients

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OSS

Matrix is an open standard for interoperable, decentralised, real-time communication over IP.

It can be used to power Instant Messaging, VoIP/WebRTC signalling, Internet of Things communication – or anywhere you need a standard HTTP API for publishing and subscribing to data whilst tracking the conversation history.

The standard can integrate with standard web services via WebRTC, facilitating browser-to-browser applications.

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6 open source tools for orchestral composers

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OSS

As an avid amateur musician, I've worked with many different software programs to create both simple and complex pieces. As my projects have grown in scope, I've used composition software ranging from basic engraving to MIDI-compatible notation to playback of multi-instrument works. Composers have their choice of proprietary software, but I wanted to prove that, regardless of the need, there is an open source tool that will more than satisfy them.

When my needs were simple and my projects few, I used the excellent resource Lilypond, part of the GNU project, for engraving my music score. Lilypond is a markup language used to create sheet music. What looks like a mass of letters and numbers on the screen becomes a beautiful music score that can be exported as a PDF to share with all your musical acquaintances. For creating small snippets of a score, Lilypond performs excellently.

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An open source alternative to Microsoft Exchange

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OSS

Microsoft Exchange has for many years been nearly unavoidable as a platform for groupware environments. Late in 2020, however, an Austrian open source software developer introduced grommunio, a groupware server and client with a look and feel familiar to Exchange and Outlook users.

The grommunio project functions well as a drop-in replacement for Exchange. The developers connect components to the platform the same way Microsoft does, and they support RPC (Remote Procedure Call) with the HTTP protocol. According to the developers, grommunio also includes numerous interfaces of common groupware such as IMAP, POP3, SMTP, EAS (Exchange ActiveSync), EWS (Exchange Web Services), CalDAV, and CardDAV. With such broad support, grommunio integrates smoothly into existing infrastructures.

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Komikku – manga reader for GNOME

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Software
OSS
GNOME
Reviews

A comic book is a magazine which consists of narrative artwork in the form of sequential images with text that represent individual scenes.

Panels are often accompanied by brief descriptive prose and written narrative, usually dialog contained in word balloons emblematic of the comics art form. Comics are used to tell a story, and are published in a number of different formats including comic strips, comic books, webcomics, Manga, and graphic novels. Some comics have been published in a tabloid form. The largest comic book market is Japan.

Komikku is a GTK-based manga reader for GNOME. The application is is written in Python.

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3 Best Free and Open Source GUI Image Compression Tools

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OSS

Data compression is the process of storing data in a format that uses less space than the original representation would use. Compressing data can be very useful particularly in the field of communications as it enables devices to transmit or store data in fewer bits. Besides reducing transmission bandwidth, compression increases the amount of information that can be stored on a hard disk drive or other storage device.

There are 2 main types of compression. Lossy compression is a data encoding method which reduces a file by discarding certain information. When the file is uncompressed, not all of the original information will be recovered. Lossy compression is typically used to compress video, audio and images, as well as internet telephony. The fact that information is lost during compression will often be unnoticeable to most users. Lossy compression techniques are used in all DVDs, Blu-ray discs, and most multimedia available on the internet.

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Events: LibOCon, POSI, and Kiwi TCMS at WebSummit 2021

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OSS

  • LibOCon Sponsor Interviews

    LibreOffice Conference 2021, although virtual, could not happen without the support of sponsors, which are – in order of confirmation – the following five companies: Collabora, allotropia, LPI, Omnis Cloud and CarboneIO.

  • Thank You for a Fantastic First POSI!

    We’d like to take a moment to thank our community for making our event on Practical Open Source Information a resounding success -- with more than 300 attendees, 30 speakers, a brilliant keynote address from Heather Leson of the International Federation of Red Cross and Red Crescent Societies about the role open source plays in humanitarian efforts, and three tracks, our half-day event proved to be a valuable space for many members of our community to come together and discuss a wide range of pressing issues affecting open source practitioners everywhere. (Recordings of all event talks and panels will be made available shortly!)

  • Meet Kiwi TCMS at WebSummit 2021 in Lisbon

    Kiwi TCMS is happy to announce that our first post-COVID live presence will be at WebSummit 2021, Nov 1-4 in Lisbon, Portugal. We're joining as a featured startup as part of the ALPHA program in category Enterprise Software Solutions.

    Kiwi TCMS will have an on-site presence during the exhibition (1 day) where you can easily find us. We've also applied to the Startup Showcase track where you can see Alex present on stage. In addition, if all goes well our team will be joined by Alexandre Neto of QCooperative who is leading the effort to adopt Kiwi TCMS for testing the QGIS open source project. More on that here.

Pensela: An Open-Source Tool Tailored for Screen Annotations

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Software
OSS

You may have come across several screenshot tools available for Linux. However, a dedicated screen annotation tool along with the ability to take screenshots? And, with cross-platform support?

Well, that sounds even better!

While you get many tools to beautify your screenshots and the screenshot tools like Flameshot, Pensela lets you focus on annotations first.

It focuses on offering several annotation options while giving you the ability to take full-size screenshots.

Here, I shall highlight some of its features along with my experience using it.

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5 best practices for using open source community leaderboards

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OSS

It takes a community of people with varying skill sets and expertise to build open source software. Leaderboards have become a way for open source communities to track progress and showcase and celebrate top-performing contributors. If leaderboards are done right, they can increase participation, motivate contributors with gamification, and enhance the community. But leaderboards can also have adverse outcomes—including discouraging participation.

The Community Health Analytics Open Source Software (CHAOSS) community, a Linux Foundation project, focuses on bringing standardization to open source project health and metrics. Leaderboards are a topic that keeps coming up during those conversations. Initially, this blog post was a presentation I made for Upstream 2021, the Tidelift event that kicked off Maintainer Week, a weeklong celebration of open source maintainers. This article will explore five best practices to help communities use leaderboards successfully and improve their project health through metrics.

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Why my public library chooses Linux and open source

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Linux
Interviews
OSS

The Crawford County Federated Library System has been using Linux and open source software in its IT operations since 1999. They realized early on the potential of open source and integrated it into their enterprise. They were a part of my own Linux journey as I built a content filtering system for our school district. Twenty years ago, there were few models for the use of open source in libraries and education. Meadville Public Library and the Crawford County Federated Library System were the leaders then and now. Recently I had some questions about how to help libraries in our own library system, and I called Meadville. They referred me to Cindy Murdock Ames, their IT Director. I asked her what they were using for patron desktop computers. Cindy sent a brief email that piqued my interest, and I asked her if she would agree to an email interview. She graciously accepted.

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9 Best Free and Open Source Command-Line Image Compression Tools

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Software
OSS

Data compression is the process of storing data in a format that uses less space than the original representation would use. Compressing data can be very useful particularly in the field of communications as it enables devices to transmit or store data in fewer bits. Besides reducing transmission bandwidth, compression increases the amount of information that can be stored on a hard disk drive or other storage device.

There are 2 main types of compression. Lossy compression is a data encoding method which reduces a file by discarding certain information. When the file is uncompressed, not all of the original information will be recovered. Lossy compression is typically used to compress video, audio and images, as well as internet telephony. The fact that information is lost during compression will often be unnoticeable to most users. Lossy compression techniques are used in all DVDs, Blu-ray discs, and most multimedia available on the internet.

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More in Tux Machines

today's howtos

  • How to use wall command in linux - Unixcop

    wall is (an abbreviation of write to all) is a Unix command-line utility that displays the contents of a computer file or standard input to all logged-in users. It is used by root to send out shutting down message to all users just before poweroff. It displays a message on the terminals of all logged-in users. The messages can_be either typed on the terminal or the contents of a file. Also usually, system administrators send messages to announce maintenance and ask users to log out and close all open programs.The messages ‘re shown to all logged in users with a terminal open.

  • Any Port in a Storm: Ports and Security, Part 1

    When IT and Security professionals talk about port numbers, we’re referring to the TCP and UDP port numbers a service is running on that are waiting to accept connections. But what exactly is a port?

  • Book Review: Data Science at the Command Line By Jeroen Janssens

    Data Science at the Command Line: Obtain, Scrub, Explore, and Model Data with Unix Power Tools written by Jeroen Janssens is the second edition of the series “Data Science at the Command Line”. This book demonstrates how the flexibility of the command line can help you become a more efficient and productive data scientist. You will learn how to combine small yet powerful command-line tools to quickly obtain, scrub, explore, and model your data. To get you started, author Jeroen Janssens provides a Docker image packed with over 80 tools–useful whether you work with Windows, macOS, or Linux.

  • How to Take a Typing Test on Linux With tt

    In the modern era of technology, typing has become one of the most common activities for a lot of professions. Learning to type faster with accuracy can help you get more things done in the same amount of time. However, touch typing is not a skill that you can master overnight. It takes regular practice and testing to improve your speed and accuracy gradually. While there are a lot of websites that help you achieve this, all you essentially need on Linux is a terminal. Let's see how.

  • FIX: Google Chrome doesn’t work on Kali linux
  • How to install OpenToonz on a Chromebook

    Today we are looking at how to install OpenToonz on a Chromebook. Please follow the video/audio guide as a tutorial where we explain the process step by step and use the commands below. If you have any questions, please contact us via a YouTube comment and we would be happy to assist you!

Security and DRM Leftovers

Linux 5.15-rc3

So after a somewhat rocky merge window and second rc, things are now
actually looking pretty normal for rc3. Knock wood.

There are fixes all over, and the statistics look fairly regular, with
drivers dominating as they should (since they are most of the tree).
And outside of drivers, we have a fairly usual mix of changes -
architecture fixes, networking, filesystems, and tooling (the latter
being mostly kvm selftests).

Shortlog appended, it's not too long and easy to scan through to get a
flavor for the details if you happen to care.

Please do give it a whirl,

             Linus

Read more Also: Linux 5.15-rc3 Released - Looking "Pretty Normal" Plus Performance Fix - Phoronix

Huawei launches OS openEuler, aims to construct 'ecological base of national digital infrastructure'

Chinese tech giant Huawei launched openEuler operating system (OS) on Saturday, another self-developed OS after the HarmonyOS, as it tries to "solve the domestic stranglehold problem of lacking its homegrown OS in basic technology," and build a full-scenario covered ecosystem to prepare for more US bans. The openEuler OS can be widely deployed in various forms of equipment such as servers, cloud computing and edge computing. Its application scenarios cover Information Technology, Communication Technology and Operational Technology to achieve unifying an operating system with multi-device support, according to the company's introduction. In the ICT field, Huawei provides products and solutions such as servers, storage, cloud services, edge computing, base stations, routers, industrial control among others, all of which need to be equipped with an OS. Huawei has therefore been building capabilities to achieve a unified OS architecture, and meet the demands of different application scenarios, the firm said on Saturday. The openEuler program was initially announced back in 2019 as an open source operating system. Today's launch is an updated one. Read more