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Programming Leftovers

Submitted by Roy Schestowitz on Saturday 24th of April 2021 09:28:22 PM Filed under
Development
  • Sébastien Wilmet: C dialects versus C++ dialects

    Some developers say that since the C++ programming language is so large, containing lots of features, each C++ programmer ends up writing code in a different subset of C++, a different dialect.

    This essay looks at whether the C language - which contains a much smaller set of core features than C++ - is any better with regards to the "dialects problem".

  • Thoughts about gedit and Rust

    Nothing concrete yet, I've not started to work on it. But after a break of several months, I'm now considering learning Rust, and incrementally rewriting gedit in Rust.

  • Optimizing Android release packages

    In the first part of this post I described a way to build release packages of KDE apps for Android using Craft on KDE’s Binary Factory infrastructure. In this part we are now going to look at how to review and optimize the package content, and where to get the metadata for the app stores from.

    Inspecting APKs

    Before starting this work KDE Itinerary’s nightly build APK for 32bit ARM was about 36MB, without translation catalogs. The first working and complete release APK built with Craft came in at over 140MB, obviously not the direction I was going for. Fortunately there’s a number of ways to optimize this, currently we are approaching about 22MB, without loss of functionality and full translations.

  • GNU Guix: Building derivations, how complicated can it be?

    Derivations are key to Guix, they're the low-level build instructions used for things like packages, disk images, and most things than end up in the store.

    Around a year ago, the established approach to build derivations across multiple machines was daemon offloading. This offloading approach is mostly static in terms of the machines involved and uses SSH to communicate and move things between machines.

    The Guix Build Coordinator project set out to provide an alternative approach, both to explore what's possible, but also to provide a usable tool to address two specific use cases.

    The first use case was building things (mostly packages) for the purpose of providing substitutes. At the time, the daemon offloading approach used on ci.guix.gnu.org which is the default source of substitutes. This approach was not scaling particularly well, so there was room for improvement.

    The second use case was more aspirational, support various quality assurance tasks, like building packages changed by patches, regularly testing fixed output derivations, or building the same derivations across different machines to test for hardware specific differences.

    While both these tasks have quite a lot in common, there's still quite a lot of differences, this in part led to a lot of flexibility in the design of the Guix Build Coordinator.

    [...]

    When used as a standalone GNU/Linux distribution, Guix offers a declarative, stateless approach to operating system configuration management. Guix is highly customizable and hackable through Guile programming interfaces and extensions to the Scheme language.

»

More in Tux Machines

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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

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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.

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