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Programming Leftovers

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  • Paru: AUR Helper Isn't Just A Rust Rewrite

    Don't worry you can keep using Yay but the main developer decided to start up a new project called Paru which initially started as just a rust rewrite of yay but since then has had a few nice additions that might a little bit nicer to work with and bit a bit better of an aur helper.

  • Who you gonna call? Perl client and website for Google Civic Information API

    I recently became aware of a very cool service provided by the Google. The Civic Information API provides contact information for all elected representatives (from head of state down to municipal official) for any US address.

    I wrote the Perl client for the API, published as Net::Google::CivicInformation. Get a free API token and you're up and running.

  • Greyscale, you might be doing it wrong

    While working on ansi_colours crate I’ve learned about colour spaces things I’ve never thought I would. One of those is intricacies of greyscale. Or rather not so much greyscale itself but conversion from sRGB. ‘How hard can it be?’ one might ask, ‘Just sum all components and divide by three!’ one might provide a helpful suggestion.

    Taking an arithmetic mean of red, green and blue coordinates of the colour is often mentioned method for conversion to greyscale. Inaccuracy of the method is usually acknowledged but justified by its simplicity and speed. That’s a fair trade-off except that equally simple and fast algorithm which is noticeably more accurate exists. It is built on an observation that green contributes the most to the luminosity and that computers like powers of two.

  • What’s the point: Facebook SDK, Grafana, DigitalOcean, GNU nano, Istio, OpsRamp, and Elastic

    GitLab users wanting to deploy code on Digital Ocean’s platform as a service offering App Platform can now do so via a new integration.


    Version 5.5 of text editor GNU nano is now available. The release, which has been given the code name Rebecca, includes an option to suppress the title bar and just show some basic editing information at the bottom, as well as a way of changing the prompt bar’s colour. Other changes help highlight search results, and are meant to make toggles more consistent.

  • Setup your KDE development environment - kdesrc-build & Kate - Kate | Get an Edge in Editing

    Kate (and KDE) is always in need of more contributors.

    Over the years we tried to make the development experience more pleasant and move to tools that are more widely adopted by developers around the world.

    We traveled from ancient CVS repositories over to Subversion and since years are up and running on Git.

    We moved our code hosting to a more beginner friendly GitLab instance in the last year, too.

    And I really think this does seem to show effects, at least for Kate & related projects we got a nice influx of contributions over GitLab.

  • My Staff Software Engineering Reading List

    After reading Four books professional developers should read, by Phil Eaton, I was inspired to write my own engineering reading list.

    Originally I thought of this as a “staff engineering” reading list, because I probably wouldn’t have appreciated these earlier in my career. When starting out, my reading was mostly about the specifics of using Ruby on Rails, HTML, and CSS. Which was great, and worked well for me.

    But while the books in this list have been useful for me as an engineering leader, anybody at any level can get a lot out of them. Here they are: [...]

  • Quantifying Technical Debt

    Getting out of tech debt can feel like a Sisyphean task. It’s not uncommon for organizations to declare code bankruptcy and rewrite working systems from the ground up. As a former enterprise software consultant, I have participated in some of these rewrites. They cost half a million dollars almost automatically. They can cost millions easily.

    Something that pricey and frustrating deserves analysis: how do we end up in this situation? How do we measure it? And how do we alleviate, or even better, prevent such a situation?

  • Avoiding Technical Debt

    In the last post, after debunking a few misconceptions about technical debt and where it comes from. I proposed that we measure software maintenance requirements in terms of ongoing development effort. I described how this maintenance load increases faster for some teams than others with two example cases: a “yikes” case and an “average” case. We ended on the topic of technical bankruptcy, when teams take on the exorbitant expense of rewriting their code from scratch because, for a couple of years, it allows them to feel like they’re on top of their maintenance load until it gets out of control again. We ended on a question:

    So is maintenance load just destined to get out of control?

  • Reducing Technical Debt

    In the last post, we talked about the role of code stewardship in avoiding the accrual of maintenance load on your code base. But keeping your maintenance load from growing any further isn’t helpful—and might be impossible—if you’re already at your maintenance limit now. So…

    How do we reduce maintenance load?

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.