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Programming: ‘Hack’, Berkeley Packet Filter, Python and More

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Development
  • Hack Laptop Brings Linux to Desktop for Everyone Learning to Code

    If you have a pre-teen interested in coding, $300 in loose cash and $10/month to spend on a subscription service, the new ‘Hack’ computer might be what you’re looking for.

    Most learn-to-code devices are geared toward a younger crowd, often disguised as toys. The Hack Laptop is simply an ASUS computer. It has a 1920×1080 HD display, 64GB storage, 4GB RAM, and an Intel N5000 processor. It runs Endless OS, which is a version of Linux, and that’s where the real magic begins.

    Instead of some learn-as-you-go app, the Hack Laptop is itself a teaching tool. With that $10/month subscription, students get new challenges that entice them to hack the device itself. The challenges invite them to pick apart code, and a feature dubbed ‘flip to hack’ reverts to the user interface so students can see their user-facing changes in real-time.

  • How to Make Linux Microservice-aware with Cilium and eBPF

    My name is Thomas Graf. Before I start, I would like to know a little bit about what your interests are; who is involved with the upside of things platform, kind of less the dev side, just pure platform? Who is really into kind of development and Dev-ops? So, first of all, I've been asked to stay behind a podium, so whenever you see me walk in front just give me a sign, and push me back. Apparently, the video camera is not able to catch me if I've walked forward too much.

    So what I'm here to talk about is, is BPF, Berkeley Packet Filter, and how BPF can be used to turn and Linux into what we call a Micro Service Operating System. What makes me qualified to talk about this? So I've spent about 15 years working on the Linux kernel. About 10 years of that, I've mostly focused on working and security from a subsystem perspective. So I helped write potentially the biggest monolith ever, 12 million lines of source code by now. I worked on all of the networking subsystem pretty much, a lot of security user space stuff, Netlink, prior to and so on and so on.

  • Clean Architectures in Python: the book

    I'm excited to announce that the success of the post on clean architectures encouraged me to expand the subject and to write a book that I titled "Clean Architectures in Python. A practical approach to better software design".

    The book contains a complete introduction to TDD and clean architectures, two topics that I believe are strictly interconnected. The book is 170 pages long and it is complete, at least for a first edition, but I am already planning to add content that could not fit in this release for several reasons (mostly because still unclear in my mind).

  • pinp 0.0.7: More small YAML options

    One new option was suggested (and implemented) by Ilya Kashnitsky: the bold and small subtitle carrying a default of ‘this version built on …’ with the date is now customisable; motivation was for example stating a post-publication DOI which is indeed useful. In working with DOI I also finally realized that I was blocking displays of DOIs in the references: the PNAS style use \doi{} for a footer display (which we use e.g. for vignette info) shadowing the use via the JSS.cls borrowed from the Journal of Statistical Software setup. So we renamed the YAML header option to doi_footer for clarity, still support the old entries for backwards compatibility (yes, we care), renamed the macro for this use — and with an assist from LaTeX wizard Achim Zeileis added a new \doi{} now displaying DOIs in the references as they should! We also improved some internals as e.g. the Travis CI checks but I should blog about that another time, and documented yet more YAML header options in the vignette.

  • ActiveState Adds Beta Functionality for Open Source Language Automation
  • The New LLVM Repository Is Now Officially Available Via Git On GitHub

    The LLVM project has long been transitioning from Subversion-centered development to using Git around GitHub. The new "LLVM monorepo" Git setup is now considered finalized. 

    A few days ago I wrote about the LLVM transition to Git nearly being finalized while the announcement hit the wire yesterday of its success. James Knight who has been working on this initiative announced, "The new official monorepo is published to LLVM's github organization. At this point, the repository should be considered stable -- there won't be any more rewrites which invalidate commit hashes (barring some _REALLY_ good reason...)."

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