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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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Grujowmi

Mar 30

ShadowFortress: how I aggregate hundreds of IP blocklists into a single ready-to-use file

#security #blocklist #opensource #learning

3 min read

Mar 30

what if MCP servers had a Lighthouse-style security score?

#mcp #security #ai #opensource

2 min read

Agunechemba Ekene

Mar 30

The Most Beautiful “Ugly” Gift in Tech: Happy Birthday Jean-Baptiste Kempf

#webdev #opensource #richard

1 min read

Leon

Mar 30

Tap: Forge Once, Run Forever — Why AI Browser Automation Needs a Protocol

#ai #browserautomation #mcp #opensource

1 min read

Wes

Mar 30

The Blackwall Between Your AI Agent and Your Filesystem

#opensource #security #go #ai

6 min read

Mar 30

Three Threads, One Terminal: Concurrency in Rust with Channels and Atomics

#rust #cli #terminal #opensource

8 min read

Andrej

Mar 30

Claude CLI vs API for Code Review: Same Model, Wildly Different Results

#opensource #webdev #typescript #productivity

7 min read

Jakub

Mar 30

I was tired of next-themes being abandoned, so I built a drop-in replacement

#nextjs #react #typescript #opensource

3 min read

Mar 30

What is OpenClaw? A Self Hosted AI Assistants

#discuss #openclaw #ai #opensource

11 min read

Sagar Maheshwary

Mar 30

How I Debug Logs Across Services (and Why I Built a CLI Tool)

#productivity #cli #programming #opensource

3 min read

Sherin Joseph Roy

Mar 30

200GB of Raw Rover Data and No Pipeline to Process It. So I Wrote One.

#python #machinelearning #robotics #opensource

10 min read

Mar 29

Every backend developer has this headache 😩

#node #systemdesign #opensource #npm

2 min read

Dheeraj

Mar 30

Empty (Blank Board): A Minimal Canvas Where Everything Is a Plugin

#javascript #opensource #webdev #buildinpublic

2 min read

Michael "Mike" K. Saleme

Mar 30

Agent Systems Are Failing at Trust Boundaries. We Ran 332 Tests to Prove It.

#security #ai #opensource #python

6 min read

Mar 30

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

#terminal #ai #opensource #productivity

3 min read

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