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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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Mar 27

🤟 I Built the Most Comprehensive Open-Source Sign Language Dataset Catalog — 73+ Datasets, 26 Languages

#opensource #ai #a11y #python

3 min read

AI Miracle

Mar 26

An AI News Aggregator That Clusters 30+ Sources in Real-Time — Here's How It Works

#ai #productivity #webdev #opensource

2 min read

dumije

Mar 30

I Got Tired of Losing Data History, So I Built a Python Library to Fix It. Meet Chrono Temporal (chrono-temporal)

#programming #opensource #postgres #python

4 min read

Dobrosav Vlaskovic

Mar 27

How I implemented a local-first Git workflow in an Electron/React app (building a Postman alternative)

#javascript #api #productivity #opensource

2 min read

Kobby Owen

Mar 27

Stop Mocking Manually — Generate a Full Fake API in Seconds

#python #opensource #development #backend

2 min read

Awa Destiny Aghangu

Mar 26

Getting Started with Docling: PDF to Structured Data

#ai #opensource #python #tutorial

3 min read

Samarth Bhamare

Mar 26

I built 10 autonomous AI agents for Claude Code — here's how they work Tags: ai, webdev, productivity, opensource

#webdev #ai #programming #opensource

4 min read

Cover image for Index-RAG: Citation-first approach to RAG

Praneeth Vadlapati

Mar 26

Index-RAG: Citation-first approach to RAG

#ai #rag #opensource #machinelearning

5 min read

Mar 27

8 Free Web Tools I Built — No Ads, No Signup, No Tracking

#webdev #javascript #opensource #productivity

2 min read

Mar 26

clang-format-inc: Format Only the Lines You Changed in C++

#cpp #devtools #opensource #git

2 min read

Mar 30

I built a free robots.txt generator & tester (no login, client-side)

#webdev #seo #opensource

1 min read

Cover image for Anthropic's Reference MCP Server Fails Security Audit: Why 'Copy-Paste' Infrastructure is Leaking Your Credentials

Mar 30

Anthropic's Reference MCP Server Fails Security Audit: Why 'Copy-Paste' Infrastructure is Leaking Your Credentials

#mcp #security #ai #opensource

5 min read

Mar 27

# Apache Data Lakehouse Weekly: March 20–27, 2026

#news #community #dataengineering #opensource

7 min read

Cover image for We kept thinking SentinelGate was ready. It wasn't.

Andrea

Mar 26

We kept thinking SentinelGate was ready. It wasn't.

#ai #webdev #opensource #security

6 min read

Mar 30

How to Run 3 OpenClaw Bots That Collaborate in Discord — Step by Step

#ai #docker #tutorial #opensource

4 min read

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