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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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Polliog

Jan 15

Logtide: 2 Months After Launch (The Real Numbers)

#opensource #startup #programming #webdev

5 min read

Jan 15

The "Kernel" release of the Agent Control Plane is finally here.

#agents #architecture #opensource #security

3 min read

Andrea Debernardi

Jan 15

From VS Code to Zed: building a FreeMarker extension because I needed one

#tooling #software #coding #opensource

3 min read

Luis Iñesta Gelabert

Jan 15

JExten: Building a Robust Plugin Architecture with Java Modules (JPMS)

#java #opensource #plugins #jpms

5 min read

Jan 14

Stop Zipping Folders: How I Built a Zero-Trust Tunnel to Share Files Instantly (in Go)

#go #opensource #cli #security

3 min read

Samanuai

Jan 13

I Built a LeetCode CLI That Tracks Your Solve Time and Saves Solution Versions

#typescript #leetcode #cli #opensource

2 min read

Jan 15

Dev List Digest for Apache Iceberg, Parquet, Polaris and Arrow: January 6–14, 2026

#news #dataengineering #opensource

4 min read

Jan 15

Integrating TON blockchain into Trust Wallet: a case study

#blockchain #opensource #software #cryptocurrency

5 min read

Griffin

Jan 15

I Built the First AI-Native Build System

#opensource #programming #devops #productivity

4 min read

Jan 15

AI Slop Detector v2.6.2: Integration Test Evidence (because “green CI” can still be hollow)

#python #opensource #testing #devops

2 min read

Touseef Ibn Khaleel

Jan 15

From Lag Spike to Lightning Fast: The Engineering Behind Gaze Guard's Massive Performance Overhaul

#webdev #ai #tutorial #opensource

5 min read

Max

Jan 15

What Happened When I Let the Internet Decide What Code Gets Merged (Week 1)

#opensource #javascript #webdev #github

5 min read

Jan 15

Config Manager for Laravel: transitioning the Base to MIT and introducing the Pro edition

#laravel #php #devtools #opensource

3 min read

Jan 15

InAppAI: Open-Source AI Agents for React Apps

#ai #react #opensource

6 min read

Jelmer Migchelbrink

Jan 15

How We Generate 600M+ Cold Email Variations From One Template (Open Source)

#javascript #typescript #opensource #coldemail

2 min read

Jan 15

Golazo: The beautiful game in your terminal

#cli #go #opensource #sports

2 min read

Nikolas Dimitroulakis

Jan 15

Open Source Question

#api #opensource

1 min read

Jan 15

I Built a Geopolitical "War Room" While High on Morphine (and Then Actually Shipped It)

#showdev #ai #opensource #nextjs

7 min read

Jan 15

Build an AI-Powered Competitive Intelligence Monitor

#python #ai #opensource #cocoindex

4 min read

Lahla

Jan 15

Tesseract OCR

#opensource #privacy #productivity #tooling

3 min read

Jan 15

The ServiceNow AI Vulnerability: What Went Wrong and How to Secure Your AI Agents

#security #cybersecurity #opensource #iam

6 min read

Apache SeaTunnel

Jan 15

SeaTunnel CDC Explained: A Layman’s Guide

#programming #apacheseatunnel #opensource #bigdata

7 min read

Apache SeaTunnel

Jan 15

Deep Dive into SeaTunnel Metadata Caching: The Underlying Logic Supporting Tens of Thousands of Concurrent Tasks

#programming #apacheseatunnel #bigdata #opensource

5 min read

Jhello

Jan 15

I just made CodeAnimator - an open source tool that turns code files into animated videos for teaching with.

#webdev #programming #opensource #tutorial

1 min read

Jan 15

Stop paying for webhook debuggers. I built a better one (Open Source).

#webhooks #opensource #javascript #tooling

4 min read

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