Language Selection

English French German Italian Portuguese Spanish

Programming Leftovers

Submitted by Roy Schestowitz on Thursday 3rd of February 2022 10:09:16 PM Filed under
Development
  • Here We Go

    I Hate gl_PointSize And So Can You

    Yes, we’re here.

    After literally years of awfulness, I’ve finally solved (for good) the debacle that is point size conversion from GL to Vulkan.

    What’s so awful about it, you might be asking. How hard can it be to just add gl_PointSize to a shader, you follow up with as you push your glasses higher up your nose.

    Allow me to explain.

  • Suntime Calculation with Lua and the Great Gift of Open Source

    Sometimes there are those unremarkable things which let you pause for a moment, and realize what a great gift of our time open source software and open knowledge is. At some point in time someone figured out how to calculate the sunrise and sunset time on the current date for your location. Someone else wrote that up and probably again a different person published it on the internet. The Internet Archive preserved a copy of it so I can still link to it. Someone took this algorithm and published a code sample on StackOverflow, which was later on used by the SatAgro guys to create the python-suntime library. Now I could come along, copy the core function of this library, and convert it within a few hours, mostly spent learning a few things about Lua, to a Lua script.

  • 5 Excellent Free Books to Learn Crystal - LinuxLinks

    Crystal is a general-purpose, concurrent, multi-paradigm, object-oriented programming language.

    With syntax heavily inspired by the language Ruby, it is a compiled language with built-in static type-checking, but specifying the types of variables or method arguments is generally unneeded. This adds the benefit of a shallower learning curve.

    The language also offers a powerful macro system, the compiler automatically checks for null references in compile time, a sleek concurrency model that uses green threads, as well as dedicated syntax to easily call native libraries.

    Crystal is published under the Apache License 2.0.

  • Qt Design Studio 3.0 Released

    We are happy to announce the release of Qt Design Studio 3.0.

  • Turn tabs into spaces on Linux and vice versa

    The Linux expand and unexpand commands sound like they can make files larger and smaller, but what they actually do is turn tabs into spaces and spaces into tabs.

    In this post, we’ll use some simple text files to demonstrate what happens when you use expand and unexpand. We’ll also compare how these commands work with some likely more familiar commands—sed and awk—that can provide similar results and offer additional options.

  • Async Rust in 2022

    Almost a year ago, the Async Working Group embarked on a collaborative effort to write a shared async vision document. As we enter 2022, we wanted to give an update on the results from that process along with the progress we are making towards realizing that vision.

    [...]

    To set the scene, imagine it's Rust 2024, and you've decided to build your first project in Rust. You're working on a project that uses GitHub and you'd like a tool that will walk over all the issues on your repository and do some automatic triage. You decide to use async Rust for this. You pull out the Rust book and thumb over to the Async I/O section. In there, it shows you the basic structure of an async Rust application.

»

More in Tux Machines

digiKam 7.7.0 is released

After three months of active maintenance and another bug triage, the digiKam team is proud to present version 7.7.0 of its open source digital photo manager. See below the list of most important features coming with this release. Read more

Dilution and Misuse of the "Linux" Brand

Samsung, Red Hat to Work on Linux Drivers for Future Tech

The metaverse is expected to uproot system design as we know it, and Samsung is one of many hardware vendors re-imagining data center infrastructure in preparation for a parallel 3D world. Samsung is working on new memory technologies that provide faster bandwidth inside hardware for data to travel between CPUs, storage and other computing resources. The company also announced it was partnering with Red Hat to ensure these technologies have Linux compatibility. Read more

today's howtos

  • How to install go1.19beta on Ubuntu 22.04 – NextGenTips

    In this tutorial, we are going to explore how to install go on Ubuntu 22.04 Golang is an open-source programming language that is easy to learn and use. It is built-in concurrency and has a robust standard library. It is reliable, builds fast, and efficient software that scales fast. Its concurrency mechanisms make it easy to write programs that get the most out of multicore and networked machines, while its novel-type systems enable flexible and modular program constructions. Go compiles quickly to machine code and has the convenience of garbage collection and the power of run-time reflection. In this guide, we are going to learn how to install golang 1.19beta on Ubuntu 22.04. Go 1.19beta1 is not yet released. There is so much work in progress with all the documentation.

  • molecule test: failed to connect to bus in systemd container - openQA bites

    Ansible Molecule is a project to help you test your ansible roles. I’m using molecule for automatically testing the ansible roles of geekoops.

  • How To Install MongoDB on AlmaLinux 9 - idroot

    In this tutorial, we will show you how to install MongoDB on AlmaLinux 9. For those of you who didn’t know, MongoDB is a high-performance, highly scalable document-oriented NoSQL database. Unlike in SQL databases where data is stored in rows and columns inside tables, in MongoDB, data is structured in JSON-like format inside records which are referred to as documents. The open-source attribute of MongoDB as a database software makes it an ideal candidate for almost any database-related project. This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you the step-by-step installation of the MongoDB NoSQL database on AlmaLinux 9. You can follow the same instructions for CentOS and Rocky Linux.

  • An introduction (and how-to) to Plugin Loader for the Steam Deck. - Invidious
  • Self-host a Ghost Blog With Traefik

    Ghost is a very popular open-source content management system. Started as an alternative to WordPress and it went on to become an alternative to Substack by focusing on membership and newsletter. The creators of Ghost offer managed Pro hosting but it may not fit everyone's budget. Alternatively, you can self-host it on your own cloud servers. On Linux handbook, we already have a guide on deploying Ghost with Docker in a reverse proxy setup. Instead of Ngnix reverse proxy, you can also use another software called Traefik with Docker. It is a popular open-source cloud-native application proxy, API Gateway, Edge-router, and more. I use Traefik to secure my websites using an SSL certificate obtained from Let's Encrypt. Once deployed, Traefik can automatically manage your certificates and their renewals. In this tutorial, I'll share the necessary steps for deploying a Ghost blog with Docker and Traefik.

More on Tux Machines: About ● Gallery ● Forum ● Blogs ● Search ● News ● RSS Feed

Part of Bytes Media ● Sister sites below.

TechBytes Techrights button

Powered by Drupal, an open source content management system

Content available under CC-BY-SA CC

© by original authors

Powered by CentOS 6.5 (GNU/Linux), Varnish, and Drupal 6