today's leftovers

• Talking About Communities and ‘People Powered’ with Leo Laporte

  I have always had a bit of a soft spot for the TWiT team and more specifically Leo Laporte. Years ago I used to co-host FLOSS Weekly on their network and occasionally I pop over to the studio for a natter with Leo. With ‘People Powered: How communities can supercharge your business, brand, and teams‘ coming out, I thought it would be fun to hop over there. Leo graciously agreed and we recorded an episode of their show, Triangulation.

• Linux Action News 123

  Speed is the big story around GNOME 3.34, two new major Firefox security features start to roll out, and we explain the CentOS 8 delay. Plus our thoughts on the PineTime, and more.

• KaOS 19.09 Run Through

  In this video, we are looking at KaOS 19.09.

• Congress Is Investigating Apple's Repair Monopoly

  For years, the independent repair community has said that Apple has engaged in anticompetitive behavior by refusing to sell parts to repair shops who are not “authorized” by the company. The company has also lobbied heavily against so called right-to-repair legislation, which would require it and other electronics companies to sell parts and tools to the general public. It has sued independent repair companies for using aftermarket and refurbished parts and worked with the Department of Homeland Security to seize unauthorized repair parts from small businesses both at customs and from individual shops. And, as the committee's letter notes, Apple cut a deal with Amazon that restricted who is allowed to sell refurbished Apple devices on Amazon.

  Apple has made small strides toward opening up the repair ecosystem. Earlier this month, the company said it would begin to sell repair parts to certain independent repair shops, though it has not said how much they will cost or what parts will be available.

  The internal communications are due to the committee on October 14.

Qt Quick on Vulkan, Metal, and Direct3D

Now that the first beta of Qt 5.14 is getting closer, it is time to start talking about one of the big new features. We cannot possibly cover all the details around the graphics stack improvements and the road to Qt 6 in one post, so in part 1 and 2 we will describe the background and take a closer look at what 5.14 will ship with, and then dive into the technical details and future directions in another set of posts later on. Also: Linux Drivers Entries Suggest two APU AMD Lines in 2020

today's howtos and programming

• How to Install Postman on Debian 10

• freshclam[15552]: Can’t create temporary directory /var/lib/clamav/clamav-969944fd9a258fa7aff08976496d8541.tmp

• 30 Linux Permissions Exercises for Sysadmins

• How to Check Linux Mint Version Number & Codename

• Four semanage commands to keep SELinux in enforcing mode

• How to start developing with .NET [Ed: Red Hat has totally lost it. It promotes Microsoft.]

• Constraint programming by example

  There are many different ways to solve problems in computing. You might "brute force" your way to a solution by calculating as many possibilities as you can, or you might take a procedural approach and carefully establish the known factors that influence the correct answer. In constraint programming, a problem is viewed as a series of limitations on what could possibly be a valid solution. This paradigm can be applied to effectively solve a group of problems that can be translated to variables and constraints or represented as a mathematic equation. In this way, it is related to the Constraint Satisfaction Problem (CSP). Using a declarative programming style, it describes a general model with certain properties. In contrast to the imperative style, it doesn't tell how to achieve something, but rather what to achieve. Instead of defining a set of instructions with only one obvious way to compute values, constraint programming declares relationships between variables within constraints. A final model makes it possible to compute the values of variables regardless of direction or changes. Thus, any change in the value of one variable affects the whole system (i.e., all other variables), and to satisfy defined constraints, it leads to recomputing the other values.

• Samuel Sutch: Why Python Has Become an Industry Favorite Among Programmers

  With the world stepping towards a new age of technology development, it isn’t hard to imagine a future that will be full of screens. And if so be the case then, demand for people with strong programming skills will definitely rise with more number of people required to develop and support the applications. Python Training is always a good idea for those wishes to be a part of this constantly developing industry. Python language is not only easy to grasp, but emphasizes less on syntax which is why a few mistakes here and there doesn’t give as much trouble as some other languages does.