How to build ROS 2 Eloquent Snaps

The end of 2019 brings about the latest ROS 2 release – Eloquent Elusor. Despite an ever growing set of features and some changes throughout the ecosystem, packaging with snaps is as easy as always. Let’s go through a quick example!

Building a Rust snap by Example

There’s plenty of official documentation which details how to create snaps. We live in the copy/paste generation though. So lets walk through a real-world example you can use as a template, or selectively yoink sections from.

Keeping the (server) lights on

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Apps Update for December

Creating new applications is the easy part. Maintaining them, making them safer and faster and adding features that make them more useful to users is what marks the difference between one-shot wonders and solid tools you can trust and enjoy for years. That is why KDE developers are constantly renewing and updating their applications, making them more reliable, more useful, and in general, just better.

What follows is just a minor sample of what you can expect from the latest round of updates for applications made by the KDE community over the last month:

Calligra Plan is Back


Calligra Plan lets you plan your projects in detail.

Calligra Plan, KDE's project planning and management tool, gets its first big update in two years.

In case you were not aware, Plan helps you manage small and large projects which require multiple resources. In order for you to model your project, Plan offers different types of task dependencies and timing constraints. You can define your tasks, estimate the effort needed to perform each, allocate resources and then schedule the project according to your needs and the actual resources available.

One of Plan's strengths is its excellent support for Gantt charts. Gantt charts help you plan, coordinate, and track specific tasks in a project. Using Gantt charts in Plan you will be able to better monitor your project's workflow.

Kdenlive Pumps up the Volume


Kdenlive rocking a brand new audio mixer.

Kdenlive developers have been adding new features and squashing bugs like crazy -- the latest version alone comes with more than 200 changes.

A lot of work has gone into improving support for audio. In the "bugs solved", department they have gotten rid of an error that would eat up memory. They have also made saving audio thumbnails much more efficient.

But the most exciting new feature is that Kdenlive now comes with a spectacular sound mixer (see image). Developers have also added a new audio clip display in the clip monitor and the project bin so you can better synchronize your moving images with the soundtrack.

Für Elisa

Talking of sound, Elisa is one of KDE's most popular up-and-coming music players. Elisa belongs to the deceptively simple, very light, very good-looking variety of players, with an intuitive and elegant interface and, in its latest version, Elisa has upgraded its looks even further to adapt better to High DPI screens. It also now integrates better with the looks other KDE applications.

Indexing music files has also improved and Elisa now supports web radios and comes with a few examples for you to try.

The Elisa music player.
The Elisa music player.

KDE Connect: Let Your Phone Rule your Desktop


KDE Connect now lets you control
the global volume of your system.

Most people who get to know KDE Connect, end up raving about it just because of how darned useful it is.

The latest version of KDE Connect packs even more features. One of the more noticeable is that there is a new SMS app that lets you read and write SMS from your computer with the full conversation history.

Developers are also adding new functionalities to existing features to make them even more useful. For example, you could already use KDE Connect to control the volume of media playing on your desktop, say, in VLC. But now you can use KDE Connect to also control your system's global volume from your phone. When giving a talk, you can control your presentation using KDE Connect to flip forward and back through your slides, and apart from integrating with other KDE apps, you can now also send files from Thunar (Xfce's file manager) and Elementary applications such as Pantheon Files.

Talking of other platforms, you can now run the mobile component of KDE Connect not only on Android, but also on all those mobile Linux platforms we'll be seeing in upcoming devices like the PinePhone and the Librem 5. The new version also provides features for desktop-to-desktop users, such as media control across desktops, remote input, device ringing, file transfers and running commands.

And Much More

But that is not all by any means: Dolphin, Spectacle, Okular and dozens of other applications have included new features you are sure to find useful. Even more projects, broaching apps, libraries and frameworks, have tweaked their code making them more stable and secure.

If you want to get an idea of the full range of changes, visit the official release announcement, or check out the changelog for every single detail of what has changed.

Getting applications made by KDE is also now easier: most are now available as Flatpaks, Snaps and AppImages. You just have to download them and they run straight out of the box. Many programs are also available for more platforms, such as Android, macOs and Windows. Krita and Okular have been available in the Microsoft Store for some time now, and they have recently been joined by Kile, a user-friendly LaTeX document editor.

Distributions will be updating their own repos and making the new versions available to Linux users over the next few weeks. Look out for your updates!

Juju 2.7: Enhanced k8s experience, improved networking and more

Canonical is proud to announce the availability of Juju 2.7. This new release introduces a range of exciting features and several improvements which enhance Juju across various areas.

To learn more about Juju, visit our page.

Kubernetes extensions

Juju is becoming the simplest way to deploy and manage your container-centric workloads. This release was aimed at bringing more Juju features to k8s charms and more k8s features to Juju.

ObjectBox, database for IoT devices, adopts snaps for simplicity and ease of installation

When designers put their heart and soul into making super-fast, easy-to-use software to help take Internet of Things (IoT) apps to the next level, installation of that software needs to meet the same high standards.

Canonical Announces Support for Kubernetes 1.17

Canonical announces full enterprise support for Kubernetes 1.17, with support covering Charmed Kubernetes, MicroK8s and Kubeadm.

CVE patching is not making your Linux secure

Linux security puzzle

Would you like to enhance your Linux security? Do you wonder what factors should be considered when evaluating your open source security from both – the infrastructure and the application perspectives? Are you keen to learn the Ubuntu security team approach?

Canonical sponsors WSLConf at Microsoft HQ

The Ubuntu 20.04 LTS Pre-release Survey

Introducing the Ubuntu AWS Rolling Kernel

Ubuntu AWS Rolling Kernel

The linux-aws 4.15 based kernel, which is the default kernel in the Ubuntu 18.04 LTS AMIs, is moving to a rolling kernel model.

<div>The State of Robotics &#8211; November 2019</div>

November, for robotics, was a good month. We’re seeing new things develop, current projects finish and more cute animals in our future. So who can complain? The news we’re covering here are things that have crossed our path and that we’ve found interesting. If you have suggestions for next months post or your own projects you would like us to highlight, don’t hesitate to get in touch.

Simplifying hardware management during Linux development

Every few months we release a Snapcraft update, with improvements to both Linux development, and snap user experience. Last week, we released Snapcraft 3.9, and this blog post will focus on the remote build feature that is now a fully accessible preview.

Let’s dig deeper into why you need to try remote build, and how you can use it today.

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