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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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Isaac Lee

Oct 13

Migrating to <template> tag

#ember #javascript #opensource #webdev

8 min read

Cover image for 🤖 The Super Contributor Ascent: Code, Commitment, and the Chronicle of 13 Days

Hacktoberfest: Contribution Chronicles

Duc Nguyen Thanh

Oct 13

🤖 The Super Contributor Ascent: Code, Commitment, and the Chronicle of 13 Days

#devchallenge #hacktoberfest #opensource

2 min read

Cover image for Hacktoberfest: Making it Enjoyable for Contributors and Maintainers

Hacktoberfest: Open Source Reflections

Ayu Adiati

Oct 13

Hacktoberfest: Making it Enjoyable for Contributors and Maintainers

#hacktoberfest #opensource #codenewbie #devchallenge

7 min read

Hacktoberfest: Contribution Chronicles

Oct 13

Week 1 — My First Contribution to Hacktoberfest 2025

#hacktoberfest #programming #opensource

2 min read

Hacktoberfest: Contribution Chronicles

Anderson Yu-Hong Cai

Oct 13

PR-04 at Hacktoberfest: Implementing a Domain Validator for Terraform Provider

#hacktoberfest #opensource #terraform #go

2 min read

Cover image for 🚀 Unlocking Data with Natural Language: Introducing QueryCraftAI

Abhishek Tiwari

Oct 13

🚀 Unlocking Data with Natural Language: Introducing QueryCraftAI

#python #opensource #openai #sql

3 min read

Oct 13

I Built a Free n8n Template Library with 2,641+ Automation Workflows 🚀

#showdev #automation #resources #opensource

7 min read

Cover image for The Creative Flow: Vibe Coding Tools and the Human Element on October 13, 2025

Om Shree

Oct 13

The Creative Flow: Vibe Coding Tools and the Human Element on October 13, 2025

#ai #cloud #devops #opensource

3 min read

Cover image for We just open-sourced XAI’s Macrohard, an autonomous computer-using agent

Prateek YJ

Oct 13

We just open-sourced XAI’s Macrohard, an autonomous computer-using agent

#automation #ai #machinelearning #opensource

2 min read

Cover image for Reactive, Strongly-Typed Configuration in .NET: Introducing Cocoar.Configuration v3.0

bwi for COCOAR

Oct 13

Reactive, Strongly-Typed Configuration in .NET: Introducing Cocoar.Configuration v3.0

#dotnet #opensource #csharp

4 min read

Agustin V. Startari

Oct 13

Opinions or Orders? Why Your Chat Fails Before Minute Three

#discuss #programming #ai #opensource

4 min read

Cover image for 🔥 Burn After Reading — Because Sometimes, Files Shouldn’t Live Forever

Rolan Lobo

Oct 13

🔥 Burn After Reading — Because Sometimes, Files Shouldn’t Live Forever

#python #beginners #opensource #privacy

1 min read

Cover image for HACKTOBERFEST - A journey for Open-Source

Hacktoberfest: Contribution Chronicles

Anshuman Jadiya

Oct 13

HACKTOBERFEST - A journey for Open-Source

#devchallenge #hacktoberfest #opensource

3 min read

Tam Le

Oct 13

Hash Checker – A Lightweight Cross-Platform File Integrity Verification Tool

#opensource #crossplatform #rust #tooling

2 min read

Cover image for ilamy Calendar v1.0.0: Resource Calendar is Here! 🎉

kcsujeet

Oct 13

ilamy Calendar v1.0.0: Resource Calendar is Here! 🎉

#react #opensource #calendar #typescript

4 min read

Oct 13

[Djangonaut][first PR] Week 1 ~ 2 (9.29 ~ 10.10)

#django #opensource #programming #webdev

2 min read

Cover image for I Built DevSheets.io - A Modern Cheat Sheet Site for Developers (And Why We Still Need Them)

Oct 13

I Built DevSheets.io - A Modern Cheat Sheet Site for Developers (And Why We Still Need Them)

#showdev #webdev #productivity #opensource

3 min read

Oct 13

Visualizing Trust in Multi-Agent Systems — The Swarm-ISM-X Public Demo (v2)

#showdev #ai #python #opensource

2 min read

Cover image for 🧑‍💻 How a Simple Idea Turned Into One of the Most Important Projects of My Journey — The Story Behind Backend Challenges

Hacktoberfest: Maintainer Spotlight

Wesley Bertipaglia

Oct 13

🧑‍💻 How a Simple Idea Turned Into One of the Most Important Projects of My Journey — The Story Behind Backend Challenges

#devchallenge #hacktoberfest #opensource

3 min read

yao tang

Oct 13

Solving Open VSX "Must log in with Eclipse Foundation account" Error

#vscode #extensions #opensource #troubleshooting

2 min read

Charles Fonseca

Oct 12

Building a Redis Clone in Zig—Part 1

#programming #opensource #zig #database

5 min read

Software Developer

Oct 13

100 Most Useful Open Source Projects

#opensource #programming #webdev

12 min read

shieldx

Oct 13

We have identified over 50 Security Hardening Tasks for ShieldX!

#security #opensource #programming

2 min read

Cover image for # Coginesux : Faire péter les neurones et les algorithmes 😎

Hacktoberfest: Maintainer Spotlight

Khadidja Bounadja

Oct 13

# Coginesux : Faire péter les neurones et les algorithmes 😎

#devchallenge #hacktoberfest #opensource

3 min read

Oct 13

A DNS server that offers useful utilities and services over the DNS protocol.

#showdev #go #opensource #sideprojects

1 min read

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