Open Source - DEV Community

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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).

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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Jul 13

Lakehouse Table Formats in 2026: Iceberg, Delta Lake, Hudi, Paimon, and DuckLake, How They Work, Where They Stand, and Where They're Going

#architecture #database #dataengineering #opensource

22 min read

MORINAGA

Jul 12

Four signals I built into an OSS decision score instead of fabricating reviews

#opensource #webdev #typescript #indiehackers

4 min read

Jul 12

InsightsTrack + Pulse: I taught Claude Desktop to read my web analytics (via MCP)

#mcp #ai #webdev #opensource

4 min read

Mason Chen

Jul 13

Feeling every button on macOS: haptic feedback built on the accessibility tree

#macos #swift #a11y #opensource

2 min read

gritfeld-design

Jul 12

WorkerDeck is now on PyPI (and its own test suite fell into the zombie trap)

#python #opensource #devops #testing

3 min read

Michael Yousrie

Jul 12

I built a PHP microframework where the method name is the route

#php #opensource #webdev #framework

3 min read

Jul 12

Prompt Injection as a Control/Data Boundary Problem

#ai #security #opensource #python

4 min read

Md Jamilur Rahman

Jul 12

Colibri: Running a 744B AI Model on Your Laptop

#ai #webdev #programming #opensource

5 min read

Bartlomiej Komendarczuk

Jul 12

I built a self-hosted status page and monitoring tool

#opensource #monitoring #statuspage

2 min read

Fenix

Jul 13

qchem-leak-screen v0.1.0: sanity-check físico de propiedades cuánticas predichas por IA en CPU

#ai #security #python #opensource

3 min read

DEV Weekend Challenge: Passion Edition Submission

Jul 12

I Got Obsessed With Killing Scrum. So I Built a World Out of 12 AI Agents.

#weekendchallenge #devchallenge #opensource #ai

3 min read

Jul 12

I Built a Free Shadow API Scanner and Found 269 Forgotten Routes in Ghost CMS

#node #devops #opensource #security

5 min read

Zane Kwok

Jul 12

I thought my PDF parser was done — then I ran it on 80 real resumes

#rust #python #ai #opensource

5 min read

Jul 12

Why Distributed Systems Become Essential Beyond 100K+ MAU

#discuss #programming #opensource #learning

3 min read

William Weishuhn

Jul 12

MCP Observatory: Scan, Test, and Secure MCP Servers Before Agents Depend on Them

#mcp #ai #security #opensource

1 min read

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