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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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Kevin B

Jul 25 '25

Byte-Vision delivers powerful Retrieval Augmented Generation by integrating Llama.Cpp and Elasticsearch's vector search.

#rag #ai #opensource #go

1 min read

Cover image for Mastering DOM Performance & Security

Aug 2 '25

Mastering DOM Performance & Security

#webdev #programming #html #opensource

1 min read

Cover image for I built a tool to visualize Claude Code activity like GitHub contributions

ktny

Jun 29 '25

I built a tool to visualize Claude Code activity like GitHub contributions

#cli #opensource #ai #productivity

2 min read

Cover image for GSoC Week 4: RTL Madness, OAuth Adventures & Markdown Mayhem

Jun 29 '25

GSoC Week 4: RTL Madness, OAuth Adventures & Markdown Mayhem

#opensource #flutter #gsoc #learning

4 min read

Cover image for git-secure: Add authentication prompts before running sensitive Git commands)

Aug 2 '25

git-secure: Add authentication prompts before running sensitive Git commands)

#git #cybersecurity #opensource #github

1 min read

Cover image for How I Made Europe Searchable From a Single Server - The Story of HydrAIDE

Peter Gebri for HydrAIDE

Aug 1 '25

How I Made Europe Searchable From a Single Server - The Story of HydrAIDE

#news #go #opensource #webdev

4 min read

Cover image for Promptfoo x Qwen3-Coder: Unmasking Vulnerabilities in 480 Billion Parameters

Aug 1 '25

Promptfoo x Qwen3-Coder: Unmasking Vulnerabilities in 480 Billion Parameters

#promptfoo #opensource #security #llm

14 min read

darfman

Jun 29 '25

DARF: A Concept-First Blueprint for Android-Native Distributed Rendering

#opensource #android #blender #indiedev

2 min read

Cover image for Build a Fullstack Stock Portfolio Agent with Mastra and AG-UI

Bonnie for CopilotKit

Jul 30 '25

Build a Fullstack Stock Portfolio Agent with Mastra and AG-UI

#webdev #programming #opensource #ai

23 min read

Aug 1 '25

A Beginner's Guide to Location-Based Databases: How Apps Like Uber and Google Maps Work day 18 of learning system design

#programming #python #opensource #frontend

4 min read

Aug 1 '25

Introducing hyperwiz: The Next-Generation TypeScript HTTP Client

#webdev #opensource #npm #typescript

1 min read

Ricardo Sueiras for AWS

Jul 31 '25

AWS open source newsletter, #212

#opensource #aws

27 min read

Cover image for A One-of-a-Kind React Chatbot Library with Every Feature Developers Wanted

Rathod Gaurav Khemchandbhai

Aug 1 '25

A One-of-a-Kind React Chatbot Library with Every Feature Developers Wanted

#react #webdev #javascript #opensource

7 min read

Jul 21 '25

The new best way to master LeetCode fast is with this free & open source application

#interview #opensource #react #productivity

2 min read

Cover image for 4 Powerful Open Source Alternatives to Salesforce (With Cost Comparison You’ll Love)

NocoBase

Jul 21 '25

4 Powerful Open Source Alternatives to Salesforce (With Cost Comparison You’ll Love)

#opensource #learning #lowcode #nocode

9 min read

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