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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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nadavnaveh

Mar 19

Why AI Agent Orchestration Needs Its Own Language

#showdev #ai #opensource

2 min read

Cover image for OverShare /ᐠ - -マ: File Sharing for Hackers

Vexilon

Mar 19

OverShare /ᐠ - -マ: File Sharing for Hackers

#showdev #go #opensource #selfhosted

3 min read

sainiok

Mar 19

FlyEnv: A Lightweight, Native Alternative to Docker for Local Web Development

#webdev #programming #tutorial #opensource

3 min read

Cover image for I Built a Visual Docker Compose Builder — Here's What I Learned

Mert

Mar 23

I Built a Visual Docker Compose Builder — Here's What I Learned

#docker #devtools #react #opensource

1 min read

Mar 30

AI terminal tools in 2026: Warp, Lacy Shell, and the rest

#terminal #ai #opensource #productivity

3 min read

Ilias Georgopoulos

Mar 19

I Upgraded My Pentesting Toolkit: Introducing 2 Free Web Tools for Infosec 🛡️

#cybersecurity #opensource #webdev

2 min read

linou518

Mar 19

Two Landmines That Nearly Killed Our 20-Agent Cluster — And How We Fixed Them

#ai #infrastructure #devops #opensource

3 min read

Cover image for Why I Built a Privacy-First AI Assistant for Visual Studio 2022 (Goodbye Cloud-Only Copilots!)

Mar 20

Why I Built a Privacy-First AI Assistant for Visual Studio 2022 (Goodbye Cloud-Only Copilots!)

#ai #opensource #csharp #productivity

2 min read

$unlikefraction profile$

Mar 20

How to make your website AI-agent friendly in 30 minutes

#ai #webdev #tutorial #opensource

3 min read

Cover image for 5만원으로 나만의 ChatGPT 훈련하는 방법

Rihpig

Mar 19

5만원으로 나만의 ChatGPT 훈련하는 방법

#ai #llm #machinelearning #opensource

4 min read

Dmytro Klymentiev

Mar 23

From 600 Notes to 3,500: Semantic Search for AI Agent Memory

#ai #semanticsearch #productivity #opensource

7 min read

Runix

Mar 19

How to Self-Host an AI Customer Chat Agent with Ollama + ChatterMate (No API Keys Needed)

#opensource #ai #selfhosted #tutorial

2 min read

Cover image for I built a free image compressor that never uploads your images — everything runs in the browser

Mar 23

I built a free image compressor that never uploads your images — everything runs in the browser

#webdev #javascript #opensource #privacy

4 min read

Cover image for Como Testar Aplicações LLM: Guia Completo do Promptfoo (2026)

Lucas

Mar 19

Como Testar Aplicações LLM: Guia Completo do Promptfoo (2026)

#ai #llm #opensource #testing

11 min read

Cover image for I built a free Morningstar X-Ray replacement for European/US ETF investors

New Way Capital Advisory

Mar 23

I built a free Morningstar X-Ray replacement for European/US ETF investors

#showdev #opensource #python #sideprojects

2 min read

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