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Wednesday, 26 Feb 20 - Tux Machines is a community-driven public service/news site which has been around for over a decade and a half and primarily focuses on GNU/LinuxSubscribe now Syndicate content

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Rules for product managers at open source companies

Filed under
OSS

Product management is an interesting career. It's immensely rewarding to be the interface between users, business strategy, engineering, and product design. And it's also a highly lucrative career with increasing demand for ambitious and empathetic practitioners.

It's also a role with no single path. You might see various certifications and courses emerging to help address the serious skills shortage. The good news is that these are starting to contribute to the talent pipeline, but they struggle to address the wider demands of the role. This is especially the case where roles require direct experience across the enormous range of what it takes to build and ship successful products.

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How we decide when to release Fedora

Filed under
Red Hat

Open source projects can use a variety of different models for deciding when to put out a release. Some projects release on a set schedule. Others decide on what the next release should contain and release whenever that is ready. Some just wake up one day and decide it’s time to release. And other projects go for a rolling release model, avoiding the question entirely.

For Fedora, we go with a schedule-based approach. Releasing twice a year means we can give our contributors time to implement large changes while still keeping on the leading edge. Targeting releases for the end of April and the end of October gives everyone predictability: contributors, users, upstreams, and downstreams.

But it’s not enough to release whatever’s ready on the scheduled date. We want to make sure that we’re releasing quality software. Over the years, the Fedora community has developed a set of processes to help ensure we can meet both our time and and quality targets.

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Raspberry Pi 4: Chronicling the Desktop Experience – Firefox Upgrade – Week 18

Filed under
Linux

This is a weekly blog about the Raspberry Pi 4 (“RPI4”), the latest product in the popular Raspberry Pi range of computers.

I’ve previously looked at web browsing on the RPI4 in Week 4 of my blog, recommending Chromium and Vivaldi on this tiny machine. Chromium offers the virtue of official Raspbian support on the RPI4 and it’s published under an open source license. On the other hand, Vivaldi is no-charge proprietary software. Both web browsers earned my recommendation. At the time, I was unable to recommend Firefox because the Raspbian repositories hosted a prehistoric version; version 60.9.0 ESR to be specific. Running a version of a web browser that’s 2 years behind the latest version is totally unacceptable, even from a security standpoint alone.

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Zorin OS For Windows Users

Filed under
OS

Dear former Microsoft users, after Windows 7 (W7) officially discontinued early this year, how about looking at alternative operating system called Zorin OS? Zorin is computer operating system for everybody that is user-friendly and familiar. You can get Zorin gratis and free, you and your family can use without learning much, prepare to live peacefully without virus & antivirus, and you will be happy you can revive old computers with it. This article gives you sights on Zorin from perspective of a W7 user and see if you find it interesting. Enjoy Zorin!

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11 Linux commands I can’t live without

Filed under
Linux

Linux is an important part of our lives, especially as a system administrator. This article shares the Linux commands that I can’t live without. So, let’s begin...

So there you have it. Eleven Linux commands that most sysadmins can’t live without!

Read more

100,000 Tweets

Filed under
Site News

@tuxmachines in Twitter
The @tuxmachines account in Twitter as of this morning

We have been on Twitter for nearly a decade. It's proprietary and centralised, but some of our audience comes from there. In the start of March we'll have posted our 100,000th tweet in Twitter. A milestone? Maybe for Twitter. We try to focus on our presence in Free/libre networks, such as Mastodon, Pleroma and Diaspora. We joined Pleroma a year ago and have more followers there than we have in Twitter. Spring is fast approaching, which means we soon turn 16.

Programming: C, Perl and Python

Filed under
Development
  • C Programming Examples on Linux for Beginners

    C programming language is one of the good choices for learning computer programming for the beginners. The basic programming logic can be learned easily by using C language as a first language. Java is considered as first programming language by some people, but I think, it is better to learn structured or procedural programming using C language before learning any object-oriented programming. The basic C programming on Linux is shown in this article by using different examples for the beginners.

  • Monitorix 3.12.0 released

    Another great Perl software that I find very useful is Monitorix.

    Monitorix is FOSS lightweight system monitoring designed to monitor as many services and system resources as possible.

    The tl;dr is that it works really well for monitoring stand alone machines- which is what I used it for. It's tracks all sorts of metrics with minimal configuration by me, and with packages for most distros its trivial to install and update.

  • Book review - Machine Learning with Python for Everyone, By Mark E. Fenner

    Machine learning, one of the hottest tech topics of today, is being used more and more. Sometimes as the best tool for the job, other times perhaps as a buzzword that is mainly used as a way to make a product look cooler. However, without knowing what ML is and how it works behind the scenes, it’s very easy to get lost. But this book does a great job in guiding you all the way up from very simple math concepts to some sophisticated machine learning techniques.

  • Python 3.8.2 and 3.9.0a4 are now available

    On behalf of the entire Python development community, and the currently serving Python release team in particular, I’m pleased to announce the release of two of the latest Python editions.

    Python 3.8.2

    Python 3.8.2 is the second maintenance release of Python 3.8 and contains two months worth of bug fixes. Detailed information about all changes made in 3.8.2 can be found in its change log. Note that compared to 3.8.1, version 3.8.2 also contains the changes introduced in 3.8.2rc1 and 3.8.2rc2.

  • Build Systems with Speed and Confidence by Closing the Loop First!

    A completely finished “loop” is when you can provide the required input to your system, and it produces the desired output (or side effects, if that’s how you like it). The “Close the loop first” technique is about closing this loop as fast as possible by creating a barebones version of it first, providing all or some required inputs, and generating a partial form of the desired output.

    Once we have closed this barebones loop, we can then begin implementing behaviours from the inside out, so that with each new change our loop starts looking more like the actual system we want.

    Sure, this is nothing new, right? We have all heard of this advice in various forms: build a proof of concept as quickly as possible; validate the unknowns first; if you want to deliver a car, deploy a skateboard first, etc. This is similar, but I am talking today purely from a “programming” point of view. In addition to helping you fail fast, “closing the loop” first also lets you build systems with more speed.

Mozilla: Facebook Container for Firefox, Issue Trackers, Securing Firefox with WebAssembly and Ad Hoc Profiling

Filed under
Moz/FF
  • The Facebook Container for Firefox

    Even with the ongoing #deletefacebook movement, not everyone is willing to completely walk away from the connections they’ve made on the social platform. After all, Facebook — and its subsidiary Instagram — is where the mountain biking club organizes rides, people post pet pics, dance moves catch on and life’s moments get shared with friends and family, near and far. Since the Cambridge Analytica scandal broke, Facebook has been greeted with more skepticism as it’s been under a hot spotlight on how it gathers, uses and gives access to our personal data for targeted advertising and manipulation, both on and off Facebook platforms. With recent news about their policy not to block false political ads, this targeting gets ever malicious.

  • Jira, Bugzilla, and Tales of Issue Trackers Past

    It seems as though Mozilla is never not in a period of transition. The distributed nature of the organization and community means that teams and offices and any informal or formal group is its own tiny experimental plot tended by gardeners with radically different tastes.

    And if there’s one thing that unites gardeners and tech workers is that both have Feelings about their tools.

    Tools are personal things: they’re the only thing that allows us to express ourselves in our craft. I can’t code without an editor. I can’t prune without shears. They’re the part of our work that we actually touch. The code lives Out There, the garden is Outside… but the tools are in our hands.

    But tools can also be group things. A shed is a tool for everyone’s tools. A workshop is a tool that others share. An Issue Tracker is a tool that helps us all coordinate work.

    And group things require cooperation, agreement, and compromise.

    While I was on the Browser team at BlackBerry I used a variety of different Issue Trackers. We started with an outdated version of FogBugz, then we had a Bugzilla fork for the WebKit porting work and MKS Integrity for everything else across the entire company, and then we all standardized on Jira.

  • Securing Firefox with WebAssembly

    Protecting the security and privacy of individuals is a central tenet of Mozilla’s mission, and so we constantly endeavor to make our users safer online. With a complex and highly-optimized system like Firefox, memory safety is one of the biggest security challenges. Firefox is mostly written in C and C++. These languages are notoriously difficult to use safely, since any mistake can lead to complete compromise of the program. We work hard to find and eliminate memory hazards, but we’re also evolving the Firefox codebase to address these attack vectors at a deeper level. Thus far, we’ve focused primarily on two techniques...

    [...]

    So today, we’re adding a third approach to our arsenal. RLBox, a new sandboxing technology developed by researchers at the University of California, San Diego, the University of Texas, Austin, and Stanford University, allows us to quickly and efficiently convert existing Firefox components to run inside a WebAssembly sandbox. Thanks to the tireless efforts of Shravan Narayan, Deian Stefan, Tal Garfinkel, and Hovav Shacham, we’ve successfully integrated this technology into our codebase and used it to sandbox Graphite.

    This isolation will ship to Linux users in Firefox 74 and to Mac users in Firefox 75, with Windows support following soon after. You can read more about this work in the press releases from UCSD and UT Austin along with the joint research paper. Read on for a technical overview of how we integrated it into Firefox.

  • Nicholas Nethercote: Ad Hoc Profiling

    I have used a variety of profiling tools over the years, including several I wrote myself.

    But there is one profiling tool I have used more than any other. It is capable of providing invaluable, domain-specific profiling data of a kind not obtainable by any general-purpose profiler.

    It’s a simple text processor implemented in a few dozen lines of code. I use it in combination with logging print statements in the programs I am profiling. No joke.

Audiocasts/Shows: GNU/Linux and Python

Filed under
Development
GNU
Linux
  • Going Linux #386 · Switching from OSX or macOS to Linux

    Episode 386 Time Stamps
    00:00 Going Linux #386 · Switching from OSX or macOS to Linux
    03:54 Where to look as a Mac user
    05:06 Ubuntu MATE
    06:16 Brave browser
    07:02 Elementary OS
    10:19 Zorin
    14:27 What is a PPA?
    15:38 Deepin
    19:40 Moving from Mac is easier than moving from Windows
    23:21 Let us know what you've tried
    25:03 Application pick: Brave browser
    27:18 goinglinux.com, goinglinux@gmail.com, +1-904-468-7889, @goinglinux, feedback, listen, subscribe
    28:21 End

  • Shrimps have SSHells | LINUX Unplugged 342

    A radical new way to do SSH authentication, special guest Jeremy Stott joins us to discuss Zero Trust SSH.

    Plus community news, a concerning issue for makers, an Arch server follow up, and more.

    Special Guests: Alex Kretzschmar, Brent Gervais, Martin Wimpress, and Neal Gompa.

  • Python Bytes: #170 Visualize this: Visualizing Python's visualization ecosystem
  • Talk Python to Me: #253 Moon base geekout

    This episode is a unique one. On this episode, I've invited Richard Campbell and developer and podcaster who also dives deep into science and tech topics. We are going to dig into his geekout series and spend some time talking realistically about moonbases and space travel.

    I think you're really going to enjoy the conversation. But I would love to hear, either way, if you like this minor diversion from pure Python topics (although we do talk some Python and programming). We can do more like this in the future if you all enjoy listening to these as much as I enjoyed making them.

Bosch Rexroth adopts Ubuntu Core and snaps for app-based ctrlX Automation platform

Filed under
Ubuntu

ctrlX Automation leverages Ubuntu Core, designed for embedded devices, and snaps, the universal Linux application containers, to deliver an open source platform to remove the barriers between machine control, operation technology and information technology, or OT-IT.

Industrial manufacturing solutions built on ctrlX Automation with Ubuntu Core and snaps will benefit from an open ecosystem, faster time to production and stronger security across devices’ lifecycle.

Through the use of an open architecture, industrial machine manufacturers selecting ctrlX Automation are freed from being tied to PLC specialists and proprietary systems with the software being decoupled from the hardware.

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Cosmo Communicator 2-in-1 Phone/Mini Laptop can now Dual Boot Debian Linux and Android

Filed under
Android
Linux
Debian

The Cosmo Communicator was released as a crowdfunded handheld device mixing smartphone and a small laptop features such as keyboard and display. It was launched in late 2019 and ran Google Android.

The original units were shipped and fulfilled the requirements of the crowdfunding campaign, but still were missing something the company had wanted to provide: support for Linux.

This is now fixed as Planet Computers, the company that makes Cosmo Communicator, just released a version of Debian Linux, that can be installed on the system, with the tools that the company has provided for free on its website.

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List of Linux Syscalls

Filed under
Linux

In this guide you’ll find a full list of Linux syscalls along with their definition, parameters, and commonly used flags.

You can combine multiple flags by using a logical AND and passing the result to the argument in question.

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100 Keyboard Shortcuts to Use Linux Like a Pro

Filed under
Linux

Linux veterans understand that the keyboard is mightier than the mouse because there are many actions that take multiple mouse clicks but can be accomplished with a single keyboard shortcut. Learning at least a handful of keyboard shortcuts can make you significantly more productive as a Linux user and earn you serious bragging rights in the Linux community.

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Intel’s 5G-oriented Atom P5900 features up to 24 10nm Tremont cores

Filed under
Linux

Like the C3000, the P5900 supports up to 128GB DDR4, now at up to 2933 MT/s. It similarly supports 16x PCIe 3.0, 16x SATA 3.0, 4x USB 3.0, and 4x USB 2.0 interfaces. However, the SATA links can now be reconfigured as up to 16x PCIe 2.0 or 16x USB 3.0, so you can now have up to 32x PCIe lanes. Other features include GPIO, 3x UARTs, and -40 to 85°C support.

We saw no mention of OS support, but we imagine that like the Atom C3000, the Atom P5900 is primarily designed to run Linux. The C3000 has appeared on a variety of Linux-powered networking appliances such as Advantech’s FWA-1012VC, as well as numerous COM Express Type 7 modules like Avnet/MSC’s MSC C7B-DV. Earlier this month, it showed up on a Versalogic Grizzly SBC.

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Games: Ultimate Chicken Horse, Dota Underlords, Overclocking With GreenWithEnvy

Filed under
Gaming
  • Hilarious party-platformer 'Ultimate Chicken Horse' free update due next month

    Ultimate Chicken Horse, a party-platform where you build the platforms as you go is getting a sweet free update with some new toys to play with next month.

    A game you absolutely need to play too! After only just getting into it myself thanks to the Humble Sweet Farm Bundle last month, it was pretty hilarious to try. Clever Endeavour Games have now announced the "A·cobra·tic Update" which is due out on March 12, for all platforms and it's free.

    It's going to include a new Snake character (who rides a Skateboard), two new levels and four new blocks. Along with "a handful of improvements, minor additions to the game, and plenty of bug fixes". The new blocks flamethrower, one-way gate, cannon and beehive sound like they will be fun to screw with others.

  • Dota Underlords from Valve is out with the City Crawl campaign mode

    Valve's latest game, Dota Underlords, has today left Early Access and with it comes a huge patch full of new content and features.

    The biggest addition to the Underlords strategy game is the City Crawl campaign. A single-player mode, that explains a bit about what's going on. It seems "Mama Eeb" passed away, leaving a power vacuum in White Spire, with the four Underlords attempting to take control. City Crawl is where you do that, as you go through various different types of challenges and while doing so earn new outfits for the Underlords.

  • Linux Gaming: Overclock your Nvidia GPU on Linux with GreenWithEnvy

    Overclocking your Nvidia card on Linux used to be a nightmare. There was lots of different commands you had to type into the terminal, and there was no easy way to monitor your temperature and fan speeds. Thanks to Roberto Leinardi’s program GreenWithEnvy, you can now overclock with a simple, clean GUI.

Programming: AWK and Python

Filed under
Development
  • The easy-going syntax of AWK commands

    An endearing feature of AWK is the flexibility of its syntax. Some other languages have very strict rules about how to write commands, and if you disobey the rules, you get error messages.

  • Easily Clip/Split Large Videos With this Python Script

    Sometimes you have may have a large video file, and you want to split that video into many smaller videos with start and end times that you specify yourself. And of course, you don’t want to do it manually with a video editor because it’s gonna take forever.

    What we are talking about for example, is when you have a video of 10 minutes, and you want to create 3 smaller clips out of it such that the first one is between 1:20 and 2:20 for example, and the second one is between 3:00 and 4:00 and the last one is between 7:10 and 8:15. Such things is theoretically hard, but not with Python and its amazing tools!

  • Real Python: How to Work With a PDF in Python

    The Portable Document Format or PDF is a file format that can be used to present and exchange documents reliably across operating systems. While the PDF was originally invented by Adobe, it is now an open standard that is maintained by the International Organization for Standardization (ISO). You can work with a preexisting PDF in Python by using the PyPDF2 package.

  • PyCoder’s Weekly: Issue #409 (Feb. 25, 2020)

Linux (Kernel): Clear Linux, AMD Radeon Graphics and Raspberry Pi 4

Filed under
Linux
  • One Of Clear Linux's Kernel Patches To Help With Boot Time Proposed For Upstreaming

    Besides Clear Linux delivering often leading x86_64 Linux performance at run-time, when it comes to boot performance it has also been at the forefront -- in some configurations, can boot in 300 ms. Intel has invested significantly in ensuring Clear Linux boots as fast as possible for when running in the cloud or on containers in order to respond to increased demand as quickly as possible as well as for use-cases like Clear Linux within automobiles where they need to get automobile cameras active within two seconds of power on. One of their many kernel patches could be on its way to the mainline kernel.

  • Running The Linux 5.6 Kernel With AMD Radeon Graphics

    Now hitting about mid-way through the Linux 5.6 kernel with early fallout having been addressed, we've been ramping up our testing/benchmarking of this next major kernel release. Here is our initial experience with the AMDGPU driver on Linux 5.6.

    Linux 5.6 brings many new features As it concerns the AMDGPU kernel driver, there is reset support for Renoir and Navi, initial bring-up for AMD Pollock, HDCP 2.x support, the kernel bits for Vulkan timeline semaphore support, DP MST DSC compression, and other fixes and code improvements.

  • VC4 DRM Driver Gets Patched For BCM2711 / Raspberry Pi 4 Support

    While the Linux 5.5 kernel landed Broadcom BCM2711 SoC and Raspberry Pi 4 enablement, one of the loose ends has been getting the open-source "VC4" DRM driver wired up for the display hardware on this latest Raspberry Pi. Patches are now pending for VC4 DRM to provide that display support and could potentially see it mainlined for Linux 5.7.

Intel: HEVC, ANV Vulkan Driver, Linux 5.7 and New Security Hole

Filed under
Linux
Hardware
  • Intel Adds VA-API Acceleration For HEVC REXT To FFmpeg

    Intel open-source developers have contributed support for VA-API acceleration of HEVC REXT "Range Extensions" content with the widely-used FFmpeg library.

    HEVC Range Extensions are extensions to H.265 geared for areas of content distribution, medical imaging, still imaging, and more. Among the changes with HEVC REXT are supporting 4:2:2 and 4:4:4 chroma sampling formats. HEVC Range Extensions are laid out in much more detail in this IEEE.org paper.

  • Intel Boosts Gen7 GPU Vulkan Compute Performance By ~330% For Geekbench

    Intel's open-source "ANV" Vulkan driver for Linux doesn't see much attention for pre-Broadwell hardware but today it saw a big improvement for Vulkan compute on aging Gen7 Ivybridge/Haswell era hardware.

    Jason Ekstrand, the lead developer of the Intel ANV Vulkan driver, discovered that in their driver's pipeline code the data cache functionality would end up being disabled when a shader was pulled out of the pipeline cache. For Broadwell/Gen8+ the data cache bit was being ignored but this oversight ended up having huge implications for Gen7 Intel graphics hardware (Ivybridge/Haswell) as the oldest supported by Intel's Vulkan driver.

  • Intel Has Accumulated 400+ Graphics Driver Patches So Far For Linux 5.7

    Intel just sent out their initial pull request of new feature changes/improvements to DRM-Next that in turn is for landing in about one month's time when the Linux 5.7 merge window kicks off. With taking longer than usual to send in their first round of feature updates, this first of several pull requests already amounts to over 400 patches.

    While it is a big pull request given the extra time for patches to accumulate, there aren't too many user-facing changes. Though there is a lot of enablement work for Tiger Lake as well as continuing Gen11 Ice Lake and Elkhart Lake work. For Ice Lake / Elkhart Lake there are a number of driver workarounds added. For Gen12 / Tiger Lake there are workarounds, display fixes, RPS is re-enabled, and other work.

  • Intel KVM Virtualization Hit By Vulnerability Over Unfinished Code

    At least not another hardware vulnerability, but CVE-2020-2732 appears to stem from unfinished code within the Intel VMX code for the Linux kernel's Kernel-based Virtual Machine (KVM) support.

    CVE-2020-2732 as of writing isn't yet public but we've been closely monitoring it since seeing a peculiar patch series earlier today and not finding much information on it.

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More in Tux Machines

Zorin OS For Windows Users

Dear former Microsoft users, after Windows 7 (W7) officially discontinued early this year, how about looking at alternative operating system called Zorin OS? Zorin is computer operating system for everybody that is user-friendly and familiar. You can get Zorin gratis and free, you and your family can use without learning much, prepare to live peacefully without virus & antivirus, and you will be happy you can revive old computers with it. This article gives you sights on Zorin from perspective of a W7 user and see if you find it interesting. Enjoy Zorin! Read more

11 Linux commands I can’t live without

Linux is an important part of our lives, especially as a system administrator. This article shares the Linux commands that I can’t live without. So, let’s begin... So there you have it. Eleven Linux commands that most sysadmins can’t live without! Read more

100,000 Tweets

@tuxmachines in Twitter
The @tuxmachines account in Twitter as of this morning

We have been on Twitter for nearly a decade. It's proprietary and centralised, but some of our audience comes from there. In the start of March we'll have posted our 100,000th tweet in Twitter. A milestone? Maybe for Twitter. We try to focus on our presence in Free/libre networks, such as Mastodon, Pleroma and Diaspora. We joined Pleroma a year ago and have more followers there than we have in Twitter. Spring is fast approaching, which means we soon turn 16.

Programming: C, Perl and Python

  • C Programming Examples on Linux for Beginners

    C programming language is one of the good choices for learning computer programming for the beginners. The basic programming logic can be learned easily by using C language as a first language. Java is considered as first programming language by some people, but I think, it is better to learn structured or procedural programming using C language before learning any object-oriented programming. The basic C programming on Linux is shown in this article by using different examples for the beginners.

  • Monitorix 3.12.0 released

    Another great Perl software that I find very useful is Monitorix. Monitorix is FOSS lightweight system monitoring designed to monitor as many services and system resources as possible. The tl;dr is that it works really well for monitoring stand alone machines- which is what I used it for. It's tracks all sorts of metrics with minimal configuration by me, and with packages for most distros its trivial to install and update.

  • Book review - Machine Learning with Python for Everyone, By Mark E. Fenner

    Machine learning, one of the hottest tech topics of today, is being used more and more. Sometimes as the best tool for the job, other times perhaps as a buzzword that is mainly used as a way to make a product look cooler. However, without knowing what ML is and how it works behind the scenes, it’s very easy to get lost. But this book does a great job in guiding you all the way up from very simple math concepts to some sophisticated machine learning techniques.

  • Python 3.8.2 and 3.9.0a4 are now available

    On behalf of the entire Python development community, and the currently serving Python release team in particular, I’m pleased to announce the release of two of the latest Python editions. Python 3.8.2 Python 3.8.2 is the second maintenance release of Python 3.8 and contains two months worth of bug fixes. Detailed information about all changes made in 3.8.2 can be found in its change log. Note that compared to 3.8.1, version 3.8.2 also contains the changes introduced in 3.8.2rc1 and 3.8.2rc2.

  • Build Systems with Speed and Confidence by Closing the Loop First!

    A completely finished “loop” is when you can provide the required input to your system, and it produces the desired output (or side effects, if that’s how you like it). The “Close the loop first” technique is about closing this loop as fast as possible by creating a barebones version of it first, providing all or some required inputs, and generating a partial form of the desired output. Once we have closed this barebones loop, we can then begin implementing behaviours from the inside out, so that with each new change our loop starts looking more like the actual system we want. Sure, this is nothing new, right? We have all heard of this advice in various forms: build a proof of concept as quickly as possible; validate the unknowns first; if you want to deliver a car, deploy a skateboard first, etc. This is similar, but I am talking today purely from a “programming” point of view. In addition to helping you fail fast, “closing the loop” first also lets you build systems with more speed.