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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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StemSplit

May 24

5 Things I Wish I'd Known Before Writing a Production MCP Server in TypeScript (2026)

#typescript #mcp #ai #opensource

8 min read

May 22

Running a Full Multi-Stage Intrusion Simulation. Every Detection Fired.

#security #devops #python #opensource

6 min read

Apr 20

Your AI Agent Just Spent $3,000. Nobody Told It to Stop.

#ai #python #opensource #llm

6 min read

Abu Hasnat

Apr 20

How to Replace Helvetica, Arial, Calibri, Georgia, and Times New Roman With Free Fonts

#typography #webdev #design #opensource

12 min read

Apr 24

Open Source And The Contribution Cemetery

#opensource

4 min read

KingGyu

Apr 20

Open-sourcing my personal AI Agent Harness for Production (harness-loom)

#agents #ai #opensource #tooling

2 min read

Oğuzhan

Apr 20

I Built a Free Interactive Simulation Lab for Students & Teachers — No Sign-Up, No Downloads

#education #webdev #opensource #beginners

3 min read

Mohamed Abdallah

Apr 24

Routing 30+ image models with one MCP server

#ai #opensource #mcp #typescript

4 min read

May 13

Building SystemGuard: Why I'm Writing an Open-Source CrowdStrike Alternative in Rust

#showdev #opensource #rust #security

2 min read

WonderLab

Apr 20

One Open Source Project a Day (No.43): MiroFish - Predicting the Future with Swarm Intelligence

#ai #opensource #multiagent #graphrag

7 min read

Apr 20

COSS Weekly: Cal.com Goes Closed Source, Mistral Borrows $830M for Data Centers, OpenAI Acquires Promptfoo, and more

#opensource #coss #weekly

4 min read

Simone Primarosa

Apr 20

Stop cross-file drift with Google's IfChange/ThenChange comments

#showdev #opensource #productivity #tooling

6 min read

Kacper Włodarczyk

Apr 20

24 Claude Code Skills to Fix Your AI Stack: Introducing production-stack-skills and content-skills

#claudecode #ai #python #opensource

4 min read

Lyra

Apr 20

Keep Your Base OS Clean: Practical `systemd-sysext` for Linux Tools and Overrides

#linux #systemd #opensource #devops

6 min read

May 24

Three researchers. One GPU. Two years. How the RX 580 became an AI platform.

#ai #amd #hystory #opensource

3 min read

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