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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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Cover image for How I Built Astra — An Emotional Memory AI Assistant with OpenAI and SQLite

May 11 '25

How I Built Astra — An Emotional Memory AI Assistant with OpenAI and SQLite

#emotionalintelligence #ai #python #opensource

1 min read

Cover image for PTTJS — A Text‑Based Format for Complex Tables

Konstantin Kolomeitsev

May 11 '25

PTTJS — A Text‑Based Format for Complex Tables

#llm #cv #opensource #datascience

3 min read

Lucas B. Almendra

May 11 '25

Hello DEV.to Community! 🌎👋

#dotnet #backend #webdev #opensource

2 min read

CodeWithDhanian

May 11 '25

100 Practical Computer Science Projects with Source Code: From Beginner to Expert

#computerscience #sideprojects #opensource #programming

2 min read

Gittech

May 10 '25

Trending Github's 60+ Repositories of May | Github Recap May 08, 2025

#webdev #programming #javascript #opensource

25 min read

Cover image for Contributing to Elixir Documentation: A Step-by-Step Guide

João Paulo Abreu

May 10 '25

Contributing to Elixir Documentation: A Step-by-Step Guide

#elixir #opensource

6 min read

May 11 '25

What is Apache Flink? Exploring Its Open Source Business Model, Funding, and Community

#apacheflink #streamprocessing #opensource

7 min read

GREGORY BRANDON HUANCA MERMA

Jun 8 '25

🧪API Testing with Postman: From Basics to Real-World Scenarios 🚀🚀

#programming #tutorial #opensource

7 min read

Cover image for Real-time State Sync with Socket.IO: Beyond CRDTs

Jun 8 '25

Real-time State Sync with Socket.IO: Beyond CRDTs

#gamedev #javascript #opensource

4 min read

Cover image for Announcing: Cerious Grid - A High-Performance Angular Grid, Open Source and Ready to Launch

May 10 '25

Announcing: Cerious Grid - A High-Performance Angular Grid, Open Source and Ready to Launch

#angular #grid #datatable #opensource

2 min read

May 10 '25

What is Lombok? Unpacking the Open Source Business Model, Funding Strategies, and Community Impact

#lombok #java #opensource

7 min read

Cover image for A Script for Simpler Kubernetes Cluster Management for Lean Teams

Jun 7 '25

A Script for Simpler Kubernetes Cluster Management for Lean Teams

#kubernetes #opensource #devops #cloudnative

6 min read

Cover image for What Is Vibe Coding and How Will It Change the Developer's Role?

Code Area

May 10 '25

What Is Vibe Coding and How Will It Change the Developer's Role?

#ai #beginners #devops #opensource

2 min read

cdilorenzo

Jun 7 '25

Stop parsing “last 3 business days” by hand — I built a fluent date range parser for .NET

#dotnet #csharp #opensource

1 min read

Cover image for The guide to MCP I never had.

Anmol Baranwal for Composio

Apr 22 '25

The guide to MCP I never had.

#programming #tutorial #mcp #opensource

22 min read

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