Language Selection

English French German Italian Portuguese Spanish

Software: MuseScore 3.4, arduino-copilot and LibreOffice 6.4 RC3

Filed under
LibO
Software
  • MuseScore 3.4 Release

    Today we are pleased to announce another significant update, MuseScore 3.4. In addition to dozens of bug fixes, it introduces UX improvements when working with score elements and telemetry.

  • Music Notation Software MuseScore 3.4 Released!

    Right-click on the Appimage, then go to Properties -> Permissions, check the box ‘Allow executing file as program’. Finally run the Appimage to launch MuseScore 3.4 and enjoy!

    MuseScore also available as Snap (runs in sandbox), which can be installed directly from Ubuntu Software, though it’s still v3.3.4 at the moment.

    Also the flathub repository contains MuseScore flatpak package....

  • announcing arduino-copilot

    arduino-copilot, released today, makes it easy to use Haskell to program an Arduino. It's a FRP style system, and uses the Copilot DSL to generate embedded C code.

    [...]

    Copilot is quite an impressive embedding of C in Haskell. It was developed for NASA by Galois and is intended for safety-critical applications. So it's neat to be able to repurpose it into hobbyist microcontrollers. (I do hope to get more type safety added to Copilot though, currently it seems rather easy to confuse eg miles with kilometers when using it.)

    I'm not the first person to use Copilot to program an Arduino. Anthony Cowley showed how to do it in Abstractions for the Functional Roboticist back in 2013. But he had to write a skeleton of C code around the C generated by Copilot. Amoung other features, arduino-copilot automates generating that C skeleton. So you don't need to remember to enable GPIO pin 13 for output in the setup function; arduino-copilot sees you're using the LED and does that for you.

    frp-arduino was a big inspiration too, especially how easy it makes it to generate an Arduino sketch withough writing any C. The "=:" operator in copilot-arduino is copied from it. But ftp-arduino contains its own DSL, which seems less capable than Copilot. And when I looked at using frp-arduino for some real world sensing and control, it didn't seem to be possible to integrate it with existing Arduino libraries written in C. While I've not done that with arduino-copilot yet, I did design it so it should be reasonably easy to integrate it with any Arduino library.

  • LibreOffice 6.4 RC3 is available

    LibreOffice 6.4 RC3 is available for downloading now. There are builds for all main OS for 64 bit. There is a 32 bit build for Windows also. These builds are only for testing.

More in Tux Machines

postmarketOS in 2020-02

Long time readers may ask themselves: what's with the strange title? Where's the traditional "xyz days of postmarketOS" post? Truth is, that this is a low-key update post, one that is rather "rushed out" in a few hours instead of spending a whole week on adding all the fancy photos and gifs webm animations and so on. Consider this the minimal effort of making the project not look dead on the homepage, while not getting too distracted from the deep development lands that our minds are sunken into. We are on track with our project direction 2020 plans. In a nutshell, we will create a stable releases of postmarketOS based on Alpine stable, while still having the development channel based on Alpine edge. Furthermore, the status of supported devices will become clearer. The PinePhone, possibly the Librem 5 and few more will be labeled as officially supported in their deviceinfo and in the wiki. postmarketOS should be usable as daily driver on these. All other devices will be categorized further, depending on active maintainer count and what is working. Think of it like the AUR: still useful, but sometimes broken and you need to know what you are doing when using these. The devices will get split into their own git repository, so one can use the device packages with both the "edge" and "latest" (stable!) channel of all other packages. @ollieparanoid and @Minecrell are evolving pmbootstrap as needed. Read more

Android Leftovers

KDE: Cutelyst 2.10.0 and SimpleMail 2, Okular Examined, FOSDEM & Plasma Mobile Sprint

  • Cutelyst 2.10.0 and SimpleMail v2 released!

    Cutelyst the C++/Qt Web framework and SimpleMailQt just got new releases. Cutelyst received many important bugfixes and if you are compiling it with View::Email it also requires SimpleMail 2, the latter got an Async API which is on production for a few months, allowing for a non-blocking send mail experience.

  • Okular is an open source universal document viewer for Windows, Linux and macOS

    Wouldn't it be nice if you had one program to view them all? That's exactly what Okular does. It's an open source universal document viewer for Windows, Linux and macOS. The program is made by KDE, a name Linux users should be familiar with, among other creations they are the ones behind the popular Kubuntu (Ubuntu + KDE Software) distro. Let's begin touring the interface. The sidepanel on the left can be used to jump to the Contents, Thumbnails, Reviews and Bookmarks sections. Select one of the options and the list of corresponding items are displayed in the panel to the right of the sidebar. The Contents option lists each section/chapter in a document, along with the sub-items, page numbers, etc. The Thumbnail mode pane displays a preview of each page in the document, you can scroll through it and click to go to the selected page. The Reviews pane contain the annotations that have been made on the document. If you don't have any, you can add some by hitting the F6 key or from the Tools menu > Review. Bookmarks are custom links that you have added, i.e., if you bookmark a page it will be displayed in the side-panel for future reference. Hit Ctrl + B to bookmark a page.

  • FOSDEM & Plasma Mobile Sprint

    Last week I decided to take KDE Itinerary for a test tour. Between the train rides there was also time for some KDE stuff. FOSDEM After writing an exam on Friday afternoon I took a train to Frankfurt. I did so not to enjoy the beautiful scenery of the area around Frankfurt central station at night but to be able to catch an early train towards Bruxelles for my first time at FOSDEM. It has been a great experience to meet so many people interested in what KDE does at the KDE booth. It also was awesome to meet all the folks that are working hard on making Linux on the phone become a thing.

Want to be an innovative company? Adopt enterprise open source

Nearly all IT professionals (95%) agree that enterprise open source is important, with 75% of professionals citing it as "extremely important," a Red Hat report found. Enterprise open source isn't just a trend, but a growing movement, as 77% of respondents expect their organizations to increase open source use in the next 12 months. "Historically, open source was seen [mainly] in web infrastructure," said Gordon Haff, Red Hat technology evangelist. "What you're seeing today is how open source is becoming a space where companies and individuals come together to collaborate in new areas of technology." Read more