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today's leftovers

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Misc
  • Is it an upgrade, or a sidegrade?

    I went to a nearby store, looked at the offers... And, in part due to the attitude of the salesguy, I decided not to (installing Linux will void any warranty, WTF‽ In 2018‽). Came back home, and... My Acer works again!

  • How To Install KDE Plasma Mobile On Your Android Smartphone?

    New Linux-based mobile operating systems and hardware projects have been making numerous headlines in the recent months. Projects like postmarketOS, Plasma Mobile, Librem 5, etc., have managed to gain momentum and support of open source community.

    To give you a rough idea of how things are going on the Plasma Mobile land, its developers have shared two methods (Via: Softpedia) to test Plasma Mobile on an actual Android smartphone. In a previous post, they also shared virtual machine images of the OS.

  • A KDE Love Story: Translating Kalzium into Chinese

    When I was a high school student, chemistry was not my cup of tea. My grades in chemistry were not bad either, but I hated memorizing those organic compounds. Then, I decided to major in computer science at university, and from that moment, destiny tightly bonded me and Free and Open Source Software.

  • Last week in Kube
  • fwupd now tells you about known issues

    That one little URL for the user to click on is the result of a rule engine being added to the LVFS. Of course, firmware updates shouldn’t ever fail, but in the real world they do, because distros don’t create /boot/efi correctly (cough, Arch Linux) or just because some people are running old versions of efivar, a broken git snapshot of libfwupdate or because a vendor firmware updater doesn’t work with secure boot turned on (urgh). Of all the failures logged on the LVFS, 95% fall into about 3 or 4 different failure causes, and if we know hundreds of people are hitting an issue we already understand we can provide them with some help.

  • I love free software… and Gentoo does! #ilovefs

    Some people care if software is free of cost or if it has the best features, above everything else. I don’t. I care that I can legally inspect its inner workings, modify and share modified versions. That’s why I happily avoid macOS, Windows, Skype, Photoshop.

  • Multiplexing Input or Output on a Raspberry Pi Part 1: Shift Registers

    A Raspberry Pi doesn't have that many GPIO pins, and neither does an Arduino Uno. An Arduino Mega does, but buying a Mega to go between the Pi and the keyboard kind of misses the point of scavenging a $3 keyboard; I might as well just buy an I2C or MIDI keyboard. So I needed some sort of I/O multiplexer that would let me read 31 keys using a lot fewer pins.

    There are a bunch of different approaches to multiplexing. A lot of keyboards use a matrix approach, but that makes more sense when you're wiring up all the buttons from scratch, not starting with a pre-wired keyboard like this. The two approaches I'll discuss here are shift registers and multiplexer chips.

  • Fanless, Linux-friendly Kaby Lake mini-tower drives seven 4K displays

    Compulab’s rugged “Airtop2” mini-tower runs Linux Mint or Win 10 on a Xeon E3-1275 or Core i7-7700 CPU with optional Nvidia Quadro P4000 graphics plus up to 64GB DDR4, a 6-drive NVMe/SATA subsystem, up to 7x display ports, and optional M.2 and FACE modules.

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.