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today's howtos

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HowTos
  • Single-command Docker environments on any machine with Multipass | Ubuntu

    Multipass has a new workflow tailored to run Docker containers on macOS, Windows or Linux. One single command, no dependencies, full flexibility.

    Multipass exists to bring Ubuntu-based development to the operating system of your choice. Whether you prefer the GUI of macOS (even on M1), Windows or any other Linux, the unmatched experience of developing software on Ubuntu is there at your fingertips, just one “multipass launch” away. Today, the Multipass team is delighted to enhance this experience for developers working with containerised applications!

  • How to create fillable forms in ONLYOFFICE Docs 7.0

    ONLYOFFICE Docs is an open-source office suite distributed under GNU AGPL v3.0. It comprises web-based viewers and collaborative editors for text documents, spreadsheets, and presentations highly compatible with OOXML formats.

    ONLYOFFICE Docs can be integrated with various cloud services such as Nextcloud, Seafile, Redmine, Alfresco, etc., as well as embedded into your own solution. The editors can also be used as a part of the complete productivity solution ONLYOFFICE Workspace.
    With the latest major update, the ONLYOFFICE developers added online form functionality allowing users to create, collaborate on and fill in forms to create documents from templates. Forms can be exported in fillable PDF and DOCX.

    In this tutorial, we’ll learn how to create a fillable form with ONLYOFFICE Docs.

  • 10 Funny Commands in Linux

    On Linux, the Terminal is used quite often to maintain the system. But besides doing serious work, there are also some funny commands, which I will show you below.

    Here, we are using Ubuntu 20.04, but you can basically use any other Linux operating system.

  • GNU Linux Debian – very fast and easy semi-automatic online install Debian 11 (non-free)

    given the fact – that once installed – GNU Linux Debian can boot (almost) anywhere, the fastest and easiest way to “install” it is to simply 1:1 copy it on whatever the user wants to boot from (harddisk or usb stick (some sticks can not be made bootable, try at least 3 different vendors)).

    So… this install script 1:1 copy installs Debian 11 (non-free) on any laptop/desktop/server (depending on internet speed) very fast & easy.

    The process can be automated (on similar hardware or on hardware where /dev/sda is always the device the user wants to 1:1 overwrite).

  • What to do when App Window is larger than Screen Height in Ubuntu | UbuntuHandbook

    For Ubuntu PC or laptop with a low resolution monitor, some app windows may be bigger than screen height, thus it’s NOT fully accessible especially for the bottom part.

    This usually happens in some Qt apps and Gnome Extension settings dialog in my Ubuntu laptop with 1366×768 screen resolution. A workaround is moving the app window above the top of the screen. Here’s how to do the trick in Ubuntu!

More in Tux Machines

Arduino Projects: Sun and Power Trackers

  • This sun tracker uses an Arduino to increase solar panel efficiency | Arduino Blog

    With the rapid pace of solar panel installations over the course of the previous decade, there has been an ongoing challenge of trying to improve their efficiency. Apart from the typical silicon crystal photovoltaic cells, there are also more efficient/expensive cells known as concentration photovoltaics (CPV), which rely on a set of mirrors to focus sunlight into a small multijunction cell. Although this technology reduces the size and material requirements, it also requires precise sun tracking for peak performance. Ruediger Loechenhoff has been able to create a far cheaper solar tracker controller, which relies on an Arduino Uno to drive a set of two motors that position the panel. To achieve this, the Uno was connected to a 9-axis MPU-9250 compass module for internal positioning, a DS3231 real-time clock for accurate timing, and a DIY shading beam sunlight sensor to detect optimal angles. Operating the tracker is also quite simple since the firmware only requires an occasional calibration step after a set number of days.

  • This Arduino device can anticipate power outages with tinyML | Arduino Blog

    Our reliance on electronic devices and appliances has never been higher, so when the power goes out, it can quickly become an unpleasant and inconvenient situation, especially for those who are unable to prepare in time. To help combat this problem, Roni Bandini has devised a device he calls “EdenOff,” which is placed inside an electrical outlet and utilizes machine learning at the edge to intelligently predict when an outage might occur. Developed with the use of Edge Impulse, Bandini began by creating a realistic dataset that consisted of three columns that pertain to different aspects of an outlet: its voltage, the ambient temperature, and how long the service has been working correctly. After training a model based on one dataset for regular service and the other for a failure, his model achieved an excellent F-1 score of .96, indicating that the model can forecast when an outage might take place with a high degree of accuracy.

LibreOffice and More

  • LibreOffice at the Univention Summit 2022

    After two years of pandemic restrictions, more and more in-person events are now taking place. Members of the LibreOffice community attended the recent Univention Summit 2022 in Bremen, northern Germany. They had a stand with LibreOffice merchandise, talked to visitors and answered questions.

  • May 2022, Month of LibreOffice Awards

    In May 2022, LibreOffice has received two Awards: SourceForge’s Open Source Project of the Month, and Software Informer’s Editor’s Pick.

  • Do While – Loop Example in Python | Mark Ai Code

    Loops are an important and widely utilized element in all current programming languages. A loop is the finest solution for automating a certain repeated operation or preventing yourself from writing repetitive code in your projects. Loops are sequences of instructions that are executed repeatedly until a condition is fulfilled. Let’s take a closer look at how Python loops function.

Proprietary Software and Microsoft Proxies

  • Patch now: Zoom chat messages can infect PCs, Macs, phones with malware

    Zoom has fixed a security flaw in its video-conferencing software that a miscreant could exploit with chat messages to potentially execute malicious code on a victim's device. The bug, tracked as CVE-2022-22787, received a CVSS severity score of 5.9 out of 10, making it a medium-severity vulnerability. It affects Zoom Client for Meetings running on Android, iOS, Linux, macOS and Windows systems before version 5.10.0, and users should download the latest version of the software to protect against this arbitrary remote-code-execution vulnerability. The upshot is that someone who can send you chat messages could cause your vulnerable Zoom client app to install malicious code, such as malware and spyware, from an arbitrary server. Exploiting this is a bit involved, so crooks may not jump on it, but you should still update your app.

  • SAP attracts further criticism for Russia presence, despite promise to leave

    A Ukrainian minister has accused software giant SAP of continuing to operate in Russia despite the German vendor previously vowing to withdraw from the aggressor nation. In the months following Russia's invasion of Ukraine, SAP attracted criticism as it continued to support installations of its software in Russia and cloud services used by Russian businesses, including state-owned bank Sberbank.

  • OpenLogic by Perforce: Why we support OSI [Ed: OSI boasts about being controlled by Microsofters]
  • OpenLogic by Perforce Announces Sponsorship of Rocky Enterprise Software Foundation [Ed: Microsoft proxy lays its hands on Rocky after it ran away from Microsoft]

Videos: Steam Deck, LinuxFX, Brave Beta on Debian 11, and Destination Linux 279