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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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Jan 9

How I Built an Offline-First RAG System That’s 10x Faster (at 19)

#ai #machinelearning #python #opensource

5 min read

橋本透

Feb 11

WinClaw: I Built an Open-Source AI Assistant That Connects to All Your Messaging Apps

#opensource #ai #selfhosted #javascript

2 min read

Jan 9

Context Graphs: Reification not Decision Traces

#ai #programming #opensource #rag

7 min read

kiran ravi

Jan 8

TanStack Router Setup in Our React SaaS Template - 2026

#webdev #opensource #programming #javascript

3 min read

KOLOG B Josias Yannick

Jan 8

Stop Writing Glue Code: One Rust Core for Python & Node.js 🦀

#rust #python #javascript #opensource

3 min read

Peter H. Boling

Feb 6

Hostile Takeover of RubyGems: My Thoughts

#opensource #ruby #rails #governance

4 min read

Feb 11

The v0.2 roadmap for Pipelock. GitHub Actions integration, MCP input scanning, smart DLP, and the path to Pipelock Pro.

#devops #ai #opensource #security

3 min read

Jan 8

I’m experimenting with an open-source narrative engine for tabletop RPGs — feedback welcome

#opensource #gamedev #softwareengineering #tools

1 min read

YMori

Feb 12

I built savant-extras: Date Range Support for Baseball Savant Data

#python #baseball #opensource #pypi

3 min read

Rahultyagi

Feb 12

Built a Free Synthetic Data Generator — Here's How (React + Tailwind)

#react #webdev #testing #opensource

3 min read

Arindam Majumder for CopilotKit

Feb 9

Build a Multi-Agent Telecom Support System with CopilotKit & LangGraph JS

#webdev #ai #programming #opensource

19 min read

Harish Kotra (he/him)

Jan 8

Build Your Own Local AI Agent (Part 4): The PII Scrubber 🧼

#programming #ai #beginners #opensource

1 min read

Guilherme Bento

Feb 11

New Project: Open Cardinal

#rust #lua #sideprojects #opensource

1 min read

Bonnie for CrossPostr

Feb 11

How a Go-Based LLM Gateway Achieves Extreme Performance Gains (Bifrost vs LiteLLM)

#ai #programming #go #opensource

10 min read

Khadirullah Mohammad

Feb 11

I Built an Interactive SVG Viewer Because Static Diagrams Deserve Better

#javascript #webdev #opensource #svg

3 min read

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