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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 The Unexpected Open-Source Hub in Sri Lanka’s Hill Country

Prasanna Indunil

May 30 '25

The Unexpected Open-Source Hub in Sri Lanka’s Hill Country

#opensource #srilanka

1 min read

May 30 '25

Window.performance in nuqs source code.

#window #opensource #nuqs #nextjs

2 min read

suxin2017

May 30 '25

Rust High-Performance Proxy: How lynx-server Reached 100 GitHub Stars

#rust #proxy #github #opensource

3 min read

Cover image for Stop Paying for Feature Flags: Meet ToggleNet, the Open-Source .NET Alternative

Carlo Luisito Adap

Jul 3 '25

Stop Paying for Feature Flags: Meet ToggleNet, the Open-Source .NET Alternative

#dotnet #csharp #featureflags #opensource

8 min read

Walid

May 29 '25

🚀 A Flutter Progress Bar That Shimmers — shimmer_progress_bar is Here!

#flutter #uidesign #dart #opensource

2 min read

Cover image for Promptfoo x Ollama x DeepSeek R1: Turning My Model Into a Cyber Warzone

Jul 2 '25

Promptfoo x Ollama x DeepSeek R1: Turning My Model Into a Cyber Warzone

#promptfoo #opensource #ollama #redteaming

11 min read

Cover image for I Built My Own Offline ChatGPT Stack Because the Internet is Temporary and Cats Are Agents of Chaos

Jay

Jul 3 '25

I Built My Own Offline ChatGPT Stack Because the Internet is Temporary and Cats Are Agents of Chaos

#ai #opensource #learning

3 min read

Cover image for Breaking Down RL2: Why We Built a Ray-Less RL Framework for AI Agents

Accio by Alibaba Group

Jul 3 '25

Breaking Down RL2: Why We Built a Ray-Less RL Framework for AI Agents

#machinelearning #deeplearning #python #opensource

1 min read

Cover image for Open-source Quotes webapp

Evaldas Visockas

May 29 '25

Open-source Quotes webapp

#opensource #api #quotes #webapp

5 min read

Andriy Ovcharov

Jul 2 '25

Code with Soul: Solaria & Barva Themes for VS Code

#vscode #themes #webdev #opensource

2 min read

Cover image for Better than Claude Code

Jul 2 '25

Better than Claude Code

#github #opensource #rag

1 min read

Cover image for Adding Passkey Login to My Open Source Project n1netails Using Yubico and WebAuthn

Shahid Foy

Jul 3 '25

Adding Passkey Login to My Open Source Project n1netails Using Yubico and WebAuthn

#passkeys #security #fullstack #opensource

4 min read

Linh Hồ

Jul 2 '25

I've just released a comprehensive document on System Design!

#systemdesign #softwareengineering #opensource #tutorial

1 min read

Cover image for Stop Breaking OpenTofu: These 5 Errors Are Killing Your Deployment

TerraformMonkey

Jul 2 '25

Stop Breaking OpenTofu: These 5 Errors Are Killing Your Deployment

#terraform #opensource #devops #sre

3 min read

Edwardvaneechoud

May 29 '25

Stop Drawing ETL Diagrams — Your Python Code Visualizes Itself

#python #dataengineering #opensource #programming

4 min read

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