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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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Jan 6

I built a CI contract guard for GitHub Actions (it catches workflow/config drift) — feedback wanted

#github #devops #opensource #cicd

2 min read

Dec 15 '25

Testing in Umami codebase - Part 1.0

#opensource #umami #testing #architecture

3 min read

PikaPods

Jan 7

Kickstart 2026: Deploy Your First Open-Source App on PikaPods

#beginners #devops #opensource #tutorial

5 min read

rokoss21

Jan 18

Parallel Agents Are Easy. Shipping Without Chaos Isn’t.

#webdev #ai #programming #opensource

6 min read

Prathamesh

Jan 18

🎬 MovieMania: Join Our Open-Source MERN Movie Tracking Platform — Contributors Wanted!"

#opensource #mern #react #webdev

2 min read

Zimtzimt

Jan 7

Open Hallucination Index (OHI): turning “Plausible AI” into “Verifiable AI” (LLMs as Gardeners of the Graph) 🌱🧠

#ai #llm #opensource #computerscience

5 min read

Szilárd Pálnagy

Dec 13 '25

"How I built a 'Forever' File Uploader with Vanilla JS and No Backend"

#showdev #javascript #webdev #opensource

1 min read

Jan 7

Building a RAG-Powered Documentation Assistant: Why I Used Bifrost LLM Gateway Instead of Direct API Calls

#programming #ai #opensource #rag

5 min read

Marabesi

Jan 18

Hexagonal architecture - Another way to the hexagone

#programming #webdev #architecture #opensource

7 min read

Jan 7

->> Day-16 AWS IAM User Management with Terraform

#devops #opensource #aws #cloud

3 min read

Martin Danilanez

Dec 14 '25

App Ideas to Prevent Google Penalties for Websites

#webdev #programming #ai #opensource

10 min read

freerave

Jan 18

Transform VS Code into a Spiritual Environment: Meet CodeTune v1.0 🚀

#vscode #opensource #productivity #typescript

2 min read

Sebastian Thiebaud

Jan 15

A simple pattern for versioned persisted state in React Native

#reactnative #typescript #opensource

4 min read

Dec 14 '25

Self-hosted feature flags for Rails (with typed values)

#tooling #rails #opensource #ruby

1 min read

Sylvester Promise

Dec 13 '25

Day 24 of improving my Data Science skills

#discuss #ai #productivity #opensource

2 min read

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