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Open Source

May The Source Be With You! Articles about Open Source and Free Software as a philosophy, and its application to software development and project management.

submission guidelines

UPDATED APRIL 8, 2020

To keep this tag clean and meaningful, please ensure your post fits into at least one of the following categories:

Organizing, managing, running, or working in an Open Source project.
Open Source philosophy, licensing, and/or practical and legal topics thereof.
Advocacy and adoption of Open Source philosophy.

DO NOT use this tag if you are simply using technologies which happen to be open source.

You should NOT use this tag for any of the following:

Promoting open source projects, such as feature lists or announcements. (Use #news or Listings.)
Contributor requests. (Use #contributorswanted or Listings.)
Tutorials/articles that happen to use an open source tool. (Use appropriate technology tags.)
Showing off something you've built that happens to be open source. (Use the #showdev tag.)
Sharing lists of open source projects. (Use #githunt or the appropriate technology tags.)

Projects must comply with the Open Source Definition (see below) to legally use the term "open source".

As all "Free Software" officially complies with the standards of Open Source anyway, this tag covers both (collectively, FOSS).

about #opensource

Open Source is so much more than "you can read the code". It is formally defined by the Open Source Initiative.

"Open Source" should not be confused with the similar Free Software, which is defined by the Free Software Foundation. Generally, all Free Software is also Open Source, and the two camps often cooperate; however, the concepts are distinct! (The tags are merged here on DEV.to for simplicity, however.)

Open Source Hardware is defined and overseen by the Open Source Hardware Assocation

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Cover image for We had enough of brainrot. We built a terminal app for Instagram to stop that.

Jet Chiang

Nov 25 '25

We had enough of brainrot. We built a terminal app for Instagram to stop that.

#programming #react #opensource #cli

2 min read

Cover image for Deep Dive: Building Real-Time Facial Emotion Detection on Raspberry Pi with YOLOv11

Malar Kondappan

Nov 24 '25

Deep Dive: Building Real-Time Facial Emotion Detection on Raspberry Pi with YOLOv11

#machinelearning #raspberrypi #python #opensource

4 min read

Cover image for Why Communication Platforms Break When They Start Scaling

Nov 26 '25

Why Communication Platforms Break When They Start Scaling

#community #webdev #programming #opensource

2 min read

Cover image for Make your Node.js APIs bulletproof using TypeScript Decorators 🛡️

João Neto

Nov 21 '25

Make your Node.js APIs bulletproof using TypeScript Decorators 🛡️

#opensource #javascript #typescript #node

2 min read

Cover image for Coding for Springs: Turning Local Water Maps into Real-World Infrastructure

Nov 21 '25

Coding for Springs: Turning Local Water Maps into Real-World Infrastructure

#discuss #data #opensource #community

6 min read

Dec 25 '25

Export Your Confluence Documentation Like a Pro: Introducing Confluence Export CLI

#automation #opensource #documentation #cli

4 min read

Cover image for How to Quickly Build a Real System to Replace Excel: A Complete Guide

NocoBase

Dec 15 '25

How to Quickly Build a Real System to Replace Excel: A Complete Guide

#opensource #lowcode #nocode #excel

7 min read

ZiLing

Dec 25 '25

I Monkey-Patched Python to Stop AI Agents from Accessing Private Networks

#python #ai #security #opensource

3 min read

Dec 25 '25

How I Optimized FFmpeg Filters with Slice Threading (My First Contribution)

#c #opensource #ffmpeg #performance

3 min read

Dec 25 '25

Reading Ruby 4.0 NEWS with Pros

#news #opensource #ruby

46 min read

Cover image for Launched: Pain Tracker v1.0.0 (Open Source, Local-First, Trauma-Informed)

CrisisCore-Systems

Dec 25 '25

Launched: Pain Tracker v1.0.0 (Open Source, Local-First, Trauma-Informed)

#showdev #opensource #react #privacy

3 min read

Steven Hur

Nov 21 '25

My First Python Package Release on PyPI: repo-code-packager

#opensource #python #tutorial #beginners

3 min read

Oleksandra

Nov 21 '25

My Open-Source Contribution: Adding a feature to typescript-language-server

#opensource #typescript #tooling #performance

2 min read

Apache SeaTunnel

Nov 26 '25

From Newcomer to Power Contributor: South Korea’s Doyeon Kim Shines in Apache SeaTunnel in Just Six Months

#community #beginners #opensource #career

5 min read

Cover image for Is the Gap Between Open-Source and Closed-Source AI Finally Over? I tested GLM 4.7 & Its Really Impressive

Dec 25 '25

Is the Gap Between Open-Source and Closed-Source AI Finally Over? I tested GLM 4.7 & Its Really Impressive

#ai #machinelearning #opensource

4 min read

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