Skip to content

DEV Community

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

👋 Sign in for the ability to sort posts by relevant, latest, or top.

Mar 9

I built an Express.js middleware that detects bots using behavioral scoring — and published it to npm

#backend #node #opensource #typescript

2 min read

João André Gomes Marques

Apr 12

Layer 1 is identity, Layer 2 is attestation

#ai #security #architecture #opensource

2 min read

Rlabs

Apr 12

Why AI-Generated Code Needs Architecture Standards (and How We Solved It)

#ai #python #architecture #opensource

4 min read

Peter Nasarah Dashe

Apr 12

Most security tools still use 20-year-old rules. That's why I built Permi.

#cybersecurity #devsecops #python #opensource

1 min read

Victorjia

Mar 9

How I Built a Self-Optimizing Arbitrage Engine with Python and Claude AI

#python #ai #opensource #business

4 min read

Uwe c

Mar 9

Screenshots cost 25,000 tokens. I got it down to 750.

#showdev #ai #opensource #productivity

2 min read

Ntty

Mar 13

Agent Surface Auditor checks to ensure your site is ready for Agents Scans visit (must be)

#ai #opensource #agents #openclaw

2 min read

URLBug

Mar 13

Ollama Cloud Models for Code Review - An Honest Comparison Using Real Examples

#ai #opensource #github #cloud

7 min read

berthelius for Frihet

Apr 1

How I Built a 55-Tool MCP Server That Runs an Entire Business

#mcp #ai #typescript #opensource

4 min read

Alex Chen

Apr 12

I Built a Universal Self-Evolution Framework for AI Agents — And Open Sourced It

#showdev #agents #ai #opensource

3 min read

David

Apr 12

I Got Tired of Hardcoding Fake Data. So I Built a Mock API That Generates It Automatically.

#webdev #javascript #tutorial #opensource

3 min read

Arjun

Mar 22

AI Agent That Actually Learns From Its Mistakes (and It Changed How I Think About AI)

#ai #agents #opensource

5 min read

Kai

Mar 9

How we coordinate 21 AI agents shipping a real product (with code)

#ai #agents #buildinpublic #opensource

2 min read

Mar 10

API layer in Twenty codebase - Part 1.0

#twenty #crm #opensource #codebasearchitecture

3 min read

Mar 9

PhotoPrism vs Lychee: Which Should You Self-Host?

#selfhosted #opensource #homelab #linux

4 min read

👋 Sign in for the ability to sort posts by relevant, latest, or top.