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today's howtos and leftovers

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HowTos
  • Condres 19.09 Cinnamon Run Through

    In this video, we are looking at Condres 19.09, the Cinnamon edition.

  • Overview Of The Lightweight Linux Operating Systems
  • How to open source your academic work in 7 steps
  • How to change the color of your Linux terminal
  • How to Setup MySQL Master-Slave Replication on Ubuntu 18.04
  • Introduction to monitoring with Pandora FMS
  • Performing storage management tasks in Cockpit
  • Semantic Placement in Augmented Reality using MrEd

    In this article we’re going to take a brief look at how we may want to think about placement of objects in Augmented Reality.

    Designers often express ideas in a domain appropriate language. For example a designer may say “place that chair on the floor” or “hang that photo at eye level on the wall”.

    However when we finalize a virtual scene in 3d we often keep only the literal or absolute XYZ position of elements and throw out the original intent - the deeper reason why an object ended up in a certain position.

    It turns out that it’s worth keeping the intention - so that when AR scenes are re-created for new participants or in new physical locations that the scenes still “work” - that they still are satisfying experiences - even if some aspects change.

    In a sense this recognizes the Japanese term 'Wabi-Sabi'; that aesthetic placement is always imperfect and contends between fickle forces. Describing placement in terms of semantic intent is also similar to responsive design on the web or the idea of design patterns as described by Christopher Alexander.

  • ArangoDB: Three Databases in One

    ArangoDB, a German database expanding its business in the United States, has released new capabilities in version 3.5 of its eponymous database management software to make it easier to query and search growing data sets across multiple data models.

    Multimodel databases take on the issue of effectively using data stored in different ways, but also of managing multiple databases, each with its own storage and operational requirements, including data consistency.

    With ArangoDB, data can be stored as key-value pairs, graphs or documents and accessed with one declarative query language. And you can do both at the same time — a document query and a graph query. The combination offers flexibility and performance advantages, explained Claudius Weinberger, CEO.

  • Open Source Is Poised To Have A Greater Impact On Security [iophk: marketeering]

    Falco, another open source security project, is a native runtime protection/detection tool for hosts and containers. It lives right in the container environment and can ascertain everything going on by watching system calls, obviating the need for agents in each container. It also provides rich out-of-box policies/rules that can be used to detect anomalous behavior in different levels, including the host, container and cluster levels.

More in Tux Machines

Python Programming

  • Improved QML Support in Qt for Python 6.0

    Since the initial port of PySide to Qt5 (a.k.a PySide2), the interaction with QML was on the list of features we wanted to fully support in our set of bindings, due to the popularity of QML. With the first official release 5.12, we had cover many use cases for the QML and Python interaction, but also we left out a couple of use cases that were really required by our community. Now that we are developing new features and improvements for Qt6, we wanted to address most of them.

  • Live-coding a music synthesizer

    After so much work and waiting, the video of my EuroPython talk is finally released! This is a fun live-coding session using NumPy and SoundDevice. The goal of this talk is to make the computer produce realistic-sounding instrument sounds, using nothing but math.

  • Which is better Python or C++?

    Programming Languages are tools. Tools selection comes after deciding what you want to do. Asking this question means that you are beginner and don’t know which programming language to learn. So In this case Selecting Python is better when you start to learn programming. Python is simple but powerful, You will learn about Abstraction and how to solve your problems quickly. When you start programming using a simple and very productive language like Python you will love it because you will make big progress in little time and you will face little problems. After you learn programming this way (The simple way) you will beat the fear of programming, You already learn how to write programs, how to debug them, and how to create something useful. Later you may face limitations in the language [...] Later you can develop complete projects in C or C++. Your knowledge in Python will help you during learning C or C++. What you will find different is just Static Typing, Memory Management and some other simple concepts.

  • Firebird driver for Python 3– release 0.8.0

    The driver is no longer beta, and is now considered as stable for Firebird 3.0 (support for Firebird 4 is still evolving till final release). Documentation is now complete.

  • Strftime Python

    In this post, we will learn about strftime() method from Python datetime package. The strftime converts date object to a string date.

today's howtos

Today in Techrights

System76 announce more Linux laptop models get open source firmware

System76, the Pop!_OS Linux distribution maker and hardware vendor for laptops, desktops and servers has announced another open source firmware push. Announced on Twitter, the official account mentioned that the Gazelle and the Adder WS models are joining the ranks and if you own them you can switch them over to their open source firmware right now. Not only that, their Darter Pro laptop model will get an automatic update to move it over to their open source EC (Embedded Controller) firmware. You can see here how to move your devices over. Founder and CEO of System76, Carl Richell, announced on Twitter: "I highly recommend switching to System76 Open Firmware if you have one of these models. Not only is your firmware largely liberated from proprietary code, your laptop will boot faster and you'll start seeing integrations between hardware (through this firmware) and Pop!_OS.". Read more