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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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Pavel Kostromin

Apr 15

Contributing to React Router: Implementing Callsite Revalidation Opt-out Without Prior Experience

#reactrouter #opensource #contribution #performance

11 min read

Cover image for I built a 4-week hackathon focused entirely on real-world debugging instead of Leetcode problems

Medea

May 4

I built a 4-week hackathon focused entirely on real-world debugging instead of Leetcode problems

#programming #opensource #hackathon #career

2 min read

Cover image for 🚀 I Built a Full-Stack Blog CMS with Next.js + Supabase (And You Can Use It Today)

Apr 15

🚀 I Built a Full-Stack Blog CMS with Next.js + Supabase (And You Can Use It Today)

#showdev #nextjs #opensource #webdev

3 min read

Cover image for You got selected for GSoC 2026, now what?

May 4

You got selected for GSoC 2026, now what?

#opensource #gsoc #software #webdev

5 min read

Apr 15

How This Developer Built a Personalized Go Tutor Using Claude Code's

#ai #opensource #programming #machinelearning

3 min read

Cover image for Your AI coding agent gets worse as your codebase grows. Here's why.

r-via

May 8

Your AI coding agent gets worse as your codebase grows. Here's why.

#showdev #ai #opensource #programming

3 min read

Cover image for What No One Tells You Before You Start Building Multi-Agent Systems (#3 Will Cost You a Week)

Rupayan

Apr 15

What No One Tells You Before You Start Building Multi-Agent Systems (#3 Will Cost You a Week)

#ai #agents #typescript #opensource

6 min read

DeadZone-0

Apr 15

Building DayNight Music: An Open-Source Android Music Streaming App

#music #opensource #android #androiddev

1 min read

Cover image for "I built a free tool to generate AWS & Azure architecture diagrams from Terraform — no signup needed"

Raghvendra Pandey

Apr 18

"I built a free tool to generate AWS & Azure architecture diagrams from Terraform — no signup needed"

#devops #terraform #aws #opensource

2 min read

jidonglab

Apr 15

5 Seconds to Install. 60-90% Less Noise. Forever.

#ai #productivity #opensource #beginners

2 min read

Cover image for One Open Source Project a Day (No. 59): Claude for Financial Services - Anthropic's Official AI Agent Suite for Finance

WonderLab

May 8

One Open Source Project a Day (No. 59): Claude for Financial Services - Anthropic's Official AI Agent Suite for Finance

#opensource #claude #agents #finance

7 min read

Shanttoosh

Apr 14

Building a Voice-Controlled AI Agent with Groq, LangGraph, and Streamlit

#opensource #whisper #agents #langchain

5 min read

Cover image for Your dependencies are 48% unmaintained — and SCA tools can't see it

kotakanbe

Apr 16

Your dependencies are 48% unmaintained — and SCA tools can't see it

#security #opensource #supplychain #devops

5 min read

Art

Apr 14

Atesti para Dana — The Currency That Starts With Giving, Not Debt

#opensource #community #alternativeeconomy #distributedsystems

7 min read

Cover image for TraceMind v3 — I built an AI agent that diagnoses why your LLM quality dropped

Uses ReAct loops and semantic failure search

Aayush kumarsingh

May 5

TraceMind v3 — I built an AI agent that diagnoses why your LLM quality dropped

#python #opensource #agents #llmops

5 min read

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