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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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Mar 27

How I Built a Self-Updater With GitHub Releases

#php #webdev #opensource #systemdesign

5 min read

Daniil Ratnikau

Apr 16

JGuardrails 1.0.0 — Hardening Java LLM Apps Against Jailbreaks, Toxicity, and Prompt Injection

#java #llm #security #opensource

7 min read

dinesh0666

Mar 24

I built a VS Code extension that blocks AI so you can actually learn to code

#vscode #productivity #opensource #beginners

2 min read

Michael Uanikehi

Mar 23

How I Fixed an SSI-Breaking Bug in NGINX Gateway Fabric

#devops #kubernetes #networking #opensource

3 min read

Mike W

Apr 27

I built a runtime safety layer that stops AI agents from breaking your system

#python #ai #agents #opensource

2 min read

Mar 25

How I implemented Schroeder Reverb in real-time audio (C++17)

#cpp #dsp #music #opensource

2 min read

Mar 23

oxlint-tailwindcss: the linting plugin Tailwind v4 needed

#tooling #tailwindcss #opensource

5 min read

Ertugrul

Mar 28

PromptLedger v0.3 — Turning prompt history into a practical review workflow.

#showdev #promptengineering #python #opensource

5 min read

Pol Gubau Amores

Mar 24

I built a zero-dependency TypeScript library to validate Spanish DNI, NIE and CIF

#typescript #javascript #opensource

2 min read

Mar 24

ShieldCortex: What We Learned Protecting AI Agent Memory

#ai #security #opensource #typescript

6 min read

WebKoding

Mar 25

I Built a WooCommerce Inventory Forecasting Plugin — Self-Hosted, No Monthly Fees

#woocommerce #wordpress #php #opensource

2 min read

Speed gains from lightweight JS-only parsing

Aral Roca

Apr 23

One PR to a parser unlocked prerendering in Brisa

#webdev #javascript #opensource #performance

8 min read

neuzhou

Apr 6

I Read 2.5 Million Lines of AI Agent Source Code - Here Are the 4 Patterns Every Project Shares

#ai #agents #opensource #architecture

8 min read

charlie-morrison

Apr 27

I Built 67 Config Validators and Made $0 — So I Built 88 Agent Skills That Actually Matter

#devtools #ai #opensource #abotwrotethis

4 min read

Arcede

Mar 28

agent.json: The Missing robots.txt for AI Agents

#ai #webdev #standards #opensource

2 min read

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