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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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Effeilo

Apr 4

Normalize.css Is Dead. Here's What to Use Instead.

#css #webdev #frontend #opensource

3 min read

Ardev

May 8

HMAC-attested receipts for AI agent tool calls — verify-action-mcp

#ai #mcp #python #opensource

4 min read

Apr 4

I Got Tired of Surprise OpenAI Bills, So I Built a Dashboard to Track Them

#buildinpublic #llm #monitoring #opensource

4 min read

May 8

I never expected this response ~robot-toast

#javascript #webdev #opensource #npm

2 min read

Mayank Mahadevwala

May 8

I built an open-source React data grid with zero dependencies

#react #typescript #opensource #javascript

2 min read

Apr 8

Doing math the cool way (GNU Octave)

#opensource #programming #science #tooling

3 min read

Wallet Guy

Apr 4

611 Tests Later: How We Built Reliable Wallet Infrastructure for AI

#ai #testing #security #opensource

5 min read

Alex Kamnier Crypto Arbitrage & AI Developer

May 8

Solving Liquidity Fragmentation: Building a Cross-Chain Monitoring Engine in Python 2026

#python #web3 #blockchain #opensource

2 min read

Apr 4

State management in Twenty codebase — Part 1.1

#opensource #twenty #statemanagement #zustand

4 min read

cucoleadan

May 8

How to Run Claude Code for Free with OpenCode Models

#ai #claude #opensource #cli

10 min read

Overcoming environment setup for a first PR

FrancisTRᴅᴇᴠ (っ◔◡◔)っ

Apr 13

The Open Sourcerer of Forem: Beyond the UI

#discuss #community #forem #opensource

4 min read

David Kim

Apr 4

Building an AI that analyzes stocks like Warren Buffett

#showdev #ai #llm #opensource

2 min read

Yash Kumar Saini

May 7

Dev Log #5 Building a Claude-style SRE terminal and tackling WebRTC

#python #typescript #opensource #backend

5 min read

Hammad

Apr 4

I built a Claude Code plugin that blocks compromised packages before installation

#security #opensource #claudecode #supplychain

2 min read

Birdircik

Apr 4

I Shipped a Tarot Card API to Every Major Package Registry in One Day

#showdev #api #opensource #sideprojects

7 min read

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