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Updated: 4 hours 2 min ago

How to build a smog sensor with a ESP8266 microcontroller

4 hours 58 min ago

Stuttgart, Germany has, like many other cities, a smog problem—even if it may be less severe than in other cities. The European Union has defined a threshold of on average 50 micrograms of dust particles per cubic meter in a 24-hour window of air to be allowed for a maximum of 35 days a year. For the last few years, actual values have been much higher for more than 35 days. There are governmental stations that measure the air pollution, but they can’t be everywhere for obvious reasons.

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Survey seeks to discover the motivations behind open source contributions

4 hours 59 min ago

Peer production is one of three fundamental ways to organize human economic activity, along with markets and firms. Yet, although it underlies billions of dollars in open source software production, it is the least understood. Participants in open source are not organized in firms, where they would work under the supervision of managers and earn a salary, nor are they individuals in a market, responding to price signals.

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14 ways being a runner is like working in tech

5 hours 20 sec ago

I started running more than a decade after I started working in tech, but I quickly saw similarities between the two activities that take up most my time. I know—and have run with—many people in tech who also happen to be runners, but I suspect my observations work well for other fields, too. I've rounded up a list of ways being a runner is like working in tech.

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The 4 components of a great decision

5 hours 1 min ago

In a previous article in this series, I wrote about front-line engagement in Japan and explained how communication technology is enabling ownership of decisions, especially among front-line workers.

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Using vi-mode in your shell

Monday 27th of March 2017 12:15:00 PM

As a participant in the greater open source community, and more specifically as a member of the Fedora Project, I have the opportunity to meet with many people and talk about all kinds of interesting technical topics. One of my favorites is the "command line," or shell, because learning about how people use the shell proficiently can give you an insight into how they think, what kind of workflows they favor, and to some extent what makes them tick.

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A Python script for fixing smart quotes in text

Monday 27th of March 2017 07:01:00 AM

About six years ago, we had a question on the Scribus mail list from someone who wanted to know whether there was an automated way to convert typewriter quotation marks to typographic quotes. In case you don't know what this means, typographic quotes (for example, and ) are sometimes referred to as curly quotes, rather than the incorrect versions on your typewriter (i.e., ").

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Getting to know core components, speed mentoring, and more OpenStack news

Monday 27th of March 2017 05:00:00 AM

Welcome to's look at what's happening in the world of OpenStack, the open source cloud infrastructure project. Starting next week, we're going to transition to a monthly format for our OpenStack news roundup. But never fear, OpenStackers, we'll be filling April with an in-depth look at the upcoming OpenStack Summit in Boston, MA. Let us know what's on your mind and which talks you hope we'll preview.

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A Game Boy emulator for the Apple Watch, RPG Maker comes to Linux, and more gaming news

Saturday 25th of March 2017 07:00:00 AM

In this bi-weekly open gaming roundup, we take a look at a Game Boy emulator for your Apple Watch, RPG Maker for Linux, Star Citizen switching to Vulkan, and more open gaming news.

Open gaming roundup for March 11-25, 2017

Open source emulator lets you play Game Boy games on an Apple Watch

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Top 5: Kubernetes on the Raspberry Pi, Securing your Raspberry Pi, and more

Friday 24th of March 2017 04:00:00 PM

In this week's Top 5, we highlight Kubernetes on the Raspberry Pi, securing your Raspberry Pi, services for securing your email, making things cheaper with your 3D printer, and why users choose Linux and open source software.

Top 5 articles of the week

5. Why do you use Linux and open source software?

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Which Linux command shell do you prefer?

Friday 24th of March 2017 07:02:00 AM

Which command shell do you prefer?

When we asked this question a year ago as a part of our article on open source shell options, over six thousand of you responded, and Bash was the overwhelming winner that time around. But preferences change over time, and we thought it was high time to ask again. Which shell do you use, and why?

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Open source job opportunities grow at crisis groups

Friday 24th of March 2017 07:01:00 AM

According to the United Nations, the number of people affected by a humanitarian crisis has doubled in the past decade. With it, so has the need for open source skilled people to join teams dedicated to solving problems associated with these emergency situations. (Read: 11 ways to get involved with Humanitarian FOSS by Heather Leson)

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3 open source link shorteners

Thursday 23rd of March 2017 07:03:00 AM

Nobody likes an impossibly long URL.

They're hard to decipher. But sometimes, between a deep directory structure on a site, plus a large number of parameters tacked on to the end, URLs just begin to get unwieldy. And back in the days before Twitter added their own link shortener to their service, a long URL meant taking precious characters away from your tweets.

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Open Labs leads 48-hour hackathon for good

Thursday 23rd of March 2017 07:01:00 AM

The local hackerspace in Tirana, Albania might be small, but they make up for size in spirit. During the weekend of March 18-19, 2017, the Open Labs Hackerspace organized the first-ever, 48-hour "open source" hackathon focused on the United Nations Sustainable Development Goals.

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How to write a web service using Python Flask

Thursday 23rd of March 2017 07:01:00 AM

Many of our customers are building useful services using our webhook feature—but unfortunately, others are not. Often we hear that no one on their team is proficient enough to write a service that can ingest a webhook payload and do something with the data. That leaves them either hoping to get cycles from their development team (unlikely) or continuing to do without.

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What does an ad agency's source code look like?

Thursday 23rd of March 2017 07:00:00 AM

In a previous article, I explained why "openness" is a solution the advertising industry should consider when attaining growth. I also explained how we've so far misunderstood the promise of openness.

This article will articulate exactly what it means for agencies to "go open," and what that will entail.

The 'open source' advertising agency

"Open": universally accessible and open to contribution
"Source": the unique logic that solves certain problems.

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Two open source secure email services

Wednesday 22nd of March 2017 07:03:00 AM

As much we all complain about email, for most of us, email is still our primary conduit for online communication. That said, numerous hacks and revelations about government surveillance have made it clear that email is also one of the most vulnerable of those conduits.

What you send via email is your business and yours alone. Besides you and the recipient, no one else should be reading that message. Not hackers, not government agencies, and definitely not nosy siblings or friends.

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5 big ways AI is rapidly invading our lives

Wednesday 22nd of March 2017 07:02:00 AM

Open source projects are helping drive artificial intelligence advancements, and we can expect to hear much more about how AI impacts our lives as the technologies mature. Have you considered how AI is changing the world around you already? Let's take a look at our increasingly artificially enhanced universe and consider the bold predictions about our AI-influenced future.

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2 new tools for creating more accessible projects

Wednesday 22nd of March 2017 07:01:00 AM

Accessibility has been an afterthought in development for far too long. The result has been costly retrofitting, the risk of inaccessible solutions, and unhappy users.

We are where we are because developers often ignore accessibility in hopes that it will resolve on its own.

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Help us write the next IT culture book

Wednesday 22nd of March 2017 07:00:00 AM

If open organizations should be flexible, inclusive, collaborative, and communal, then so should the books we write about them.

So as the open organization community at prepares its next volume in the Open Organization book series, it's working the open source way.

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How to deploy Kubernetes on the Raspberry Pi

Tuesday 21st of March 2017 07:02:00 AM

When I became interested in ARM devices, and in the Raspberry Pi in particular, my first project was an OpenVPN server.

By having the Raspberry Pi as a secure gateway to my home network, I could use my phone to control my desktop and remotely play Spotify, open documents, and a bunch of other fun things. I used an existing tutorial for that first project because I was afraid of piping anything into the command line on my own.

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