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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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Mack

Feb 19

5 Free Developer Tools I Built (and Why I'm Making Them Open Source)

#webdev #opensource #tools #productivity

2 min read

Feb 19

How We Fixed Two UX Anti-Patterns in Our Video Library

#react #webdev #opensource #ux

4 min read

Aurora

Feb 19

Building a Real-Time Solana Narrative Detector: On-Chain Signals, GitHub Trends, and Market Data

#solana #python #blockchain #opensource

4 min read

Cover image for LeanMCP: Run AI Agents in Production. Own Your Stack

Jialu

Feb 19

LeanMCP: Run AI Agents in Production. Own Your Stack

#opensource #devops #agents #typescript

3 min read

Cover image for Command Center for AI Coding Agents (Claude Code + Codex)

Feb 13

Command Center for AI Coding Agents (Claude Code + Codex)

#opensource #ai #codex #claude

3 min read

Cover image for How to Dynamically Switch Local LLMs with LangChain

Harish Kotra (he/him)

Feb 7

How to Dynamically Switch Local LLMs with LangChain

#programming #ai #python #opensource

2 min read

Jan 16

Stop Guessing Your Energy: Build a LangGraph Health Agent to Hack Your Productivity

#discuss #ai #python #opensource

4 min read

MAHER X

Jan 16

Uqda Network: How It Works in Simple Terms 🎯

#networking #privacy #cybersecurity #opensource

6 min read

Cover image for Dev List Digest for Apache Iceberg, Parquet, Polaris and Arrow: January 6–14, 2026

Jan 15

Dev List Digest for Apache Iceberg, Parquet, Polaris and Arrow: January 6–14, 2026

#news #dataengineering #opensource

4 min read

Cover image for I Built a Localhost Port Manager Because I Was Tired of Googling "Kill Port 3000"

m4cd4r4

Jan 20

I Built a Localhost Port Manager Because I Was Tired of Googling "Kill Port 3000"

#webdev #opensource #productivity #electron

3 min read

Cover image for Why TODOs rot — and how I built a tool to make them expire

Jobin

Jan 15

Why TODOs rot — and how I built a tool to make them expire

#opensource #devops #programming #devtools

2 min read

Cover image for Run Phishing Simulations for $37/Month Instead of $30,000/Year

Jan 15

Run Phishing Simulations for $37/Month Instead of $30,000/Year

#security #opensource #azure #devops

2 min read

uuware

Feb 8

Lupine.js - The Lightweight Frontend & Efficient Backend Framework

#javascript #webdev #opensource #react

2 min read

Griffin

Jan 15

I Built the First AI-Native Build System

#opensource #programming #devops #productivity

4 min read

Cover image for A New Era of Determinism

Jan 20

A New Era of Determinism

#ai #programming #opensource #rag

8 min read

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