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Programming: GNOME, RQuantLib, Skills and Wombat Dressing Room

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Development
  • Federico Mena-Quintero: Exposing C and Rust APIs: some thoughts from librsvg

    Librsvg exports two public APIs: the C API that is in turn available to other languages through GObject Introspection, and the Rust API.

    You could call this a use of the facade pattern on top of the rsvg_internals crate. That crate is the actual implementation of librsvg, and exports an interface with many knobs that are not exposed from the public APIs. The knobs are to allow for the variations in each of those APIs.

    This post is about some interesting things that have come up during the creation/separation of those public APIs, and the implications of having an internals library that implements both.

  • Dirk Eddelbuettel: RQuantLib 0.4.11: More polish

    New year, new RQuantLib! A new release 0.4.11 of RQuantLib arrived overnight on CRAN; and a Debian upload will follow shortly.

    QuantLib is a very comprehensice free/open-source library for quantitative finance; RQuantLib connects it to the R environment and language.

    This version does three new things. First, we fixed an oversight on our end and now allow a null calendar (as the C++ API). Second, the package switched to tinytest as a few of my other packages have done, allowing for very flexible testing during development and deployment—three cheers for easily testing installed packages too. Third, and per a kind nag from Kurt Hornik I updated a few calls which the current QuantLib 1.17 marks as deprecated. That lead to a compile issue with 1.16 so the change is conditional in one part.

  • Top Skills In Demand For 2020 [Ed: One cannot properly study jobs in need based only on ads in a site owned and controlled by Microsoft]

    The start of the year, when it is traditional to come up with self-improving resolutions, is a good time to contemplate new job opportunities. So what are employers looking for in 2020? Here we have two lists of the most sought skills.

    The first thing to note is that both of them are biased and there is little common ground between them. The divergence is because they have been constructed with differing goals. As a jobs site Dice is on the look out for the terms that crop up in job postings while LinkedIn Learning is hoping to sign you (or your employer) up to its skill building courses which are provided by Lynda.com, the online learning platform which LinkedIn acquired in 2015.

  • Google open-sources tool to boost 2FA adoption in npm

    Google has open-sourced an npm publishing tool for heightened security across organizations? client libraries.

    The tool, Wombat Dressing Room, aims to reduce the security risks associated with the automation of npm publishing.

    ?On my team, a small number of developers manage over 75 Node.js libraries,? Benjamin Coe, developer engineer at Google, said in an announcement on Friday (January 10).

    ?We see automation as key to making this possible,? he said.

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.