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Programming Leftovers

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  • Highlights of YaST Development Sprint 95

    Due to recent events, many companies all over the world are switching to a remote working model, and SUSE is not an exception. The YaST team is distributed so, for many members, it is not a big deal because they are already used to work in this way. For other folks it might be harder. Fortunately, SUSE is fully supporting us in this endeavor, so the YaST team has been able to deliver quite some stuff during this sprint, and we will keep doing our best in the weeks to come.

    Before jumping into what the team has recently done, we would also like to bring your attention to the migration of our blog from the good old openSUSE Lizards blog platform to the YaST website. So, please, if you use some feeds reader, update the YaST blog URL to the new one.


  • Don’t forget about Steam Link on Raspberry Pi



    Connect your gaming PC to your TV with ease, thanks to Steam Link and Raspberry Pi.



  • My Ideal Processor, Part 6502



    I am now working on a board which allows a 6502 to be replaced with an Arduino Nano or similar. This is for the development of a system which is entirely detached from the ongoing clusterf*cks of Wintel, GNU/Linux, systemd and Android. As an example, the Feb 2020 flap involving systemd-crond could have been averted with simple-cron, which I published in Jun 2016. Yeah, guys. Keep downloading random binaries. One day, you'll get one which works.


    I spent an inordinate amount of time devising a state machine. However, the result was worthwhile. Indeed, it may be of general interest to anyone who wants to support or extend a variety of processor architectures on a micro-controller using about 14 I/O pins. This includes 6502, 6507, 6510, 65816, 6800, 6809, 6811, 8008, 8051, 8080, 8085, 8088, Z80, 68008 or similar. The critical part of the design is 3-4 multiplexed control lines which are upwardly compatible. This allows migration of processor emulation from legacy host to standalone card bus system. This can be achieved using one implementation of firmware. If downward compatibility is broken and firmware varied, it is possible to re-purpose some legacy states of the multiplexed control lines and implement a card bus system with a significantly larger address-space. However, it remains vastly preferable for each application to run within a highly restricted address-space.


  • Daniel Stenberg: let’s talk curl 2020 roadmap

    ...join in and watch/discuss the curl 2020 roadmap live on Thursday March 26, 2020. Sign up here.

    The roadmap is basically a list of things that we at wolfSSL want to work on for curl to see happen this year – and some that we want to mention as possibilities.(Yes, the word “webinar” is used, don’t let it scare you!)

    If you can’t join live, you will be able to enjoy a recorded version after the fact.


  • 2020.12 JVM Nullification



    Christian Bartolomäus has fixed a long standing issue on the JVM backend: not having a proper representation for nqp::null. This special value is used a lot in Rakudo in hot code paths to indicate that something has not been initialized yet.


  • Fail-fast on missing required arguments in JavaScript using default values that throw



    Missing arguments are not fun.

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.