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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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Sreenath

Sep 3

How a Hackathon Rejection Became 6,000+ PyPI Downloads

#showdev #python #opensource #ai

2 min read

Sumit Roy

Sep 22

Zero-Downtime VM to Kubernetes Migration with Istio: A Complete Production Guide

#devops #kubernetes #cloud #opensource

6 min read

Cover image for Auto-Discovering Console Commands in Power Modules

Oct 16

Auto-Discovering Console Commands in Power Modules

#php #software #architecture #opensource

3 min read

Cover image for I Built a Free AI Tools Platform with 100+ Tools Using Next.js and OpenRouter

Oct 2

I Built a Free AI Tools Platform with 100+ Tools Using Next.js and OpenRouter

#webdev #opensource #ai #nextjs

12 min read

Oleksandra

Oct 2

Adding TOML Config Support to a CLI Tool

#opensource #python #tooling #cli

3 min read

Cover image for Maia - Multi-AI Agent Test Framework

Radosław

Sep 3

Maia - Multi-AI Agent Test Framework

#ai #python #opensource #testing

2 min read

Cover image for Minha jornada de contribuição na Hacktoberfest

Hacktoberfest: Contribution Chronicles

Ana Maria | @ana.tech.dev

Oct 2

Minha jornada de contribuição na Hacktoberfest

#devchallenge #hacktoberfest #opensource #braziliandevs

2 min read

David Christian Liedle

Sep 22

Modern Go: A Book by Claude

#ai #author #opensource #claude

1 min read

Leanid Herasimau

Oct 3

Red Hat confirmed a breach of its internal GitLab server

#news #cybersecurity #opensource

2 min read

Cover image for Principales comandos de bash para Linux 🐧

Cristian Fernando

Oct 2

Principales comandos de bash para Linux 🐧

#linux #opensource #bash #beginners

4 min read

Jramone3

Oct 2

MintBridge XFCE v1.0.3 — Toolkit modular blindado para migraciones éticas post-Windows 10

#linux #opensource #xfce #legacy

1 min read

Oct 2

Building an Open-Source QMS with Little Web Development Experience

#discuss #opensource #devjournal #beginners

3 min read

Aug 31

I built a tool that turns GitHub PRs into blog posts — looking for feedback

#sideprojects #github #ai #opensource

2 min read

Leanid Herasimau

Oct 3

OpenSSL 3.6.0 Released

#news #opensource #security #tooling

4 min read

Cover image for 🚀 Blink Socket — A Lightweight WebSocket Framework Built Out of Frustration

Puneet-Kumar2010

Oct 2

🚀 Blink Socket — A Lightweight WebSocket Framework Built Out of Frustration

#opensource #websock #javascript #tooling

2 min read

Cover image for Solving response Token 25k limit Wall: Introducing mcp-cache

Sep 30

Solving response Token 25k limit Wall: Introducing mcp-cache

#ai #opensource #typescript #automation

2 min read

Cover image for From Vision to Visualization: Building Pluggable Architecture for PHP

Sep 30

From Vision to Visualization: Building Pluggable Architecture for PHP

#php #architecture #opensource #webdev

5 min read

A L T A F

Aug 29

Introducing QRGuard - Open Source QR code Security App

#cybersecurity #vibecoding #opensource #reactnative

2 min read

Cover image for Week 2 -Git & GitHub

Aug 29

Week 2 -Git & GitHub

#opensource

3 min read

Cover image for Build a Stock Portfolio AI Agent (Fullstack, Pydantic AI + AG-UI)

Bonnie for CopilotKit

Oct 2

Build a Stock Portfolio AI Agent (Fullstack, Pydantic AI + AG-UI)

#webdev #programming #opensource #ai

17 min read

Cover image for Gonzo - The Go based TUI for log analysis

Jon Reeve

Aug 29

Gonzo - The Go based TUI for log analysis

#devops #ai #sre #opensource

1 min read

Cover image for Preptember 2025 week 3: Color schemes and Copilot improvements in GitFichas

Jessica Temporal

Sep 23

Preptember 2025 week 3: Color schemes and Copilot improvements in GitFichas

#hacktoberfest #ai #git #opensource

5 min read

Cover image for I open-sourced sttrace.com's problemset

Sep 2

I open-sourced sttrace.com's problemset

#opensource #programming #devops #softwaredevelopment

2 min read

Cover image for 🔑 One Lock to Rule Them All: Mixed Sync MultiLock

Oct 1

🔑 One Lock to Rule Them All: Mixed Sync MultiLock

#cpp #programming #multithreading #opensource

3 min read

Cover image for Designing a “Never-0.00” Price Pipeline in the Real World

22s Pocket Portfolio for Pocket Portfolio

Oct 1

Designing a “Never-0.00” Price Pipeline in the Real World

#webperf #fintech #opensource #typescript

6 min read

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