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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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Mar 18

Self-Hosted AI Models: A Practical Guide to Running LLMs Locally (2026)

#ai #machinelearning #llm #opensource

19 min read

Ferit

Mar 17

I Built an AI Code Review Tool and Tested It Against 6 Competitors. Here's an Honest Breakdown.

#ai #codereview #opensource #devtools

6 min read

Mar 18

I built an MCP server for Shopify and Stripe write operations — the gap nobody filled

#typescript #shopify #stripe #opensource

2 min read

dimitri

Mar 6

I built guardrails for AI coding agents — same governance principle, new domain

#ai #claudecode #opensource #devtools

8 min read

Rayel

Feb 11

Loi 25 du Québec : Toolkit Open-Source pour la Conformité en 5 Minutes

#webdev #opensource #javascript #privacy

2 min read

firstdata

Mar 7

Why Your AI Agent Needs a Trusted Data Directory (And How MCP Makes It Easy)

#ai #opensource #mcp #api

2 min read

Niccolò Olivieri Achille

Feb 13

Why I built yet another release tool for npm

#javascript #npm #opensource #devtools

5 min read

Feb 25

node:vm Is Not a Sandbox. Stop Using It Like One.

#security #programming #javascript #opensource

4 min read

Mar 17

Running Your Own WordPress Plugin Update Server Using GitHub

#webdev #wordpress #opensource #php

3 min read

Feb 25

I Built a Visual Desktop App for Claude Code — Here's What I Learned

#ai #opensource #electron #productivity

3 min read

Fatihat Akinwunmi

Mar 6

Building the Footer for Ekehi: My Frontend Contribution to an Open-Source Resource Platform

#showdev #frontend #html #opensource

4 min read

Made Büro

Mar 17

NestJS Module for AI Search Optimization

#nestjs #node #ai #opensource

3 min read

Feb 11

Your AI Agent's API Keys Are Probably in Plaintext Right Now

#security #rust #opensource #openclaw

4 min read

Feb 25

3 Million Developers Had a Home. Now What?

#discuss #webdev #opensource #career

5 min read

ecap0

Feb 16

Schema Drift: The Silent MCP Attack Vector Nobody's Watching

#security #mcp #ai #opensource

3 min read

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