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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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Alan West

Apr 7

How to Debug and Fix WML Errors in Battle for Wesnoth Add-ons

#gamedev #opensource #debugging #tutorial

5 min read

May 7

I Built Failure Intelligence Engine: An Open Source Guardrail for LLM Hallucinations and Prompt Attacks with real time diagnosis.

#articles #ai #security #opensource

9 min read

Apr 3

🚀 I Built an AI Code Conversion Benchmark Platform

#ai #webdev #programming #opensource

2 min read

benzsevern

Apr 7

Golden Suite + MCP: Giving AI Agents a Data Cleaning Toolkit

#python #opensource #mcp #aiagents

5 min read

Avinash

Apr 3

mathfuse: TypeScript Math Utilities (Statistics, Vectors, Matrices) Zero Dependencies

#typescript #javascript #opensource #webdev

1 min read

bigjenkie

Apr 3

How the axios@1.14.1 supply chain attack worked (and how to protect yourself)

#javascript #opensource #security #npm

4 min read

claude-dev-suite

Apr 3

I built a toolkit that turns Claude Code into a full AI dev suite

#claudecode #mcp #devtools #opensource

3 min read

William

Apr 4

How I Built a Desktop Trading Journal with Electron, React, and SQLite

#electron #opensource #react #trading

3 min read

Apr 3

Your AI Agent Just Sent an Email. Can You Prove It?

#ai #security #opensource #mcp

4 min read

Apr 3

How We Eliminated 90% of API Calls by Replacing Polling with SSE

#go #opensource #webdev #performance

3 min read

Apr 3

Apache Data Lakehouse Weekly: March 16 – April 2, 2026

#news #data #dataengineering #opensource

7 min read

Mijin-VT

Apr 3

Collaborative_agents_V2

#agents #ai #opensource #python

4 min read

Hugh

Apr 3

I Built a Chrome Extension That Gives AI Chats Permanent Memory Using a Local LLM

#ai #opensource #productivity

3 min read

Michael Amachree

Apr 3

I Built Tech Invoice Forge: an Offline-First Invoice App for Tech Freelancers

#svelte #sveltekit #webdev #opensource

4 min read

Tsunamayo

Apr 3

Helix AI Studio v2.1.0 — 7 AI Providers, CLI Integration, gemma4 Default

#ai #opensource #python #llm

1 min read

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