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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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benzsevern

Apr 7

From Dirty CSV to Golden Records: A Python Walkthrough

#python #datascience #dataengineering #opensource

10 min read

Upsec

Apr 7

I Built an Open Webhook Gateway — Here's Why and How

#showdev #webhooks #opensource #typescript

4 min read

PiQrypt

Apr 3

Why AI agents need cryptographic memory — and how to add it in one line

#ai #security #opensource #langchain

1 min read

NyxTools

Apr 3

How to Parse HL7 Messages with AI — Free MCP Server

#opensource #ai #mcp #healthcare

4 min read

Apr 3

Why We Built Polpo: The Runtime for AI Agents

#ai #agents #opensource #backend

3 min read

May 7

Open Source Customer Support Ticket System: Best Picks for 2026

#opensource #productivity #startup #tooling

8 min read

Damien

Apr 3

I Built an AI Agent Marketplace — 142 Agents, 27 Categories, Creators Keep 70%

#ai #opensource #python #marketplace

2 min read

Mr. Llama

Apr 3

RadioLlama: The Radio Player That Finally Listens to You (Not the Ads)

#webdev #music #opensource #winamp

5 min read

Wonder-David Efe

Apr 2

Filesystem for AI Agents: What I Learned Building One

#ai #python #agents #opensource

3 min read

Sam Dreams Maker

Apr 3

How I Built a Creative Writing Platform With 3 Different Editors

#nextjs #webdev #opensource #writing

3 min read

易标AI

Apr 3

标书智能体（四）——提示词顺序优化，让缓存命中，输入成本直降10倍

#ai #python #promptengineering #opensource

2 min read

易标AI

Apr 3

标书智能体（二）——生成标书提纲代码+提示词

#agents #ai #opensource #python

2 min read

Apr 2

When Your Mind Moves Faster Than Your Notes

#showdev #opensource #productivity #sideprojects

2 min read

Marçal Albert Castellví

May 7

One year of Envilder: from a CLI script to SDKs, push mode, and a website

#opensource #devops #ai #aws

6 min read

Apr 2

Building a Quantum-Resistant Blockchain from Scratch in Rust: What I Learned

#opensource #blockchain #web3 #rust

3 min read

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