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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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Cover image for Learning from failure: Building saas heaven, an open-source archive of failed saas

Medea

Jan 5

Learning from failure: Building saas heaven, an open-source archive of failed saas

#opensource #saas #webdev #programming

1 min read

Jan 5

Building My HRT Journey Tracker Workspace: A Modular, Accessible Toolset for the Trans Community

#beginners #python #opensource #appdevelopment

2 min read

Sebastian Schürmanns

Jan 5

Multilingual Websites Are Hard — AI Finally Makes Them Practical

#cms #multilingual #ai #opensource

3 min read

Cover image for I’m open-sourcing a protocol to automate neighborhood fairness. Here is the logic.

Kowshik Jallipalli

Jan 6

I’m open-sourcing a protocol to automate neighborhood fairness. Here is the logic.

#discuss #architecture #automation #opensource

3 min read

Jan 6

I started coding at 48 (May 2025). I built a CI “contract guard” for GitHub Actions — feedback wanted

#github #devops #opensource #cicd

2 min read

Cover image for I built a physics engine where gravity is just a floating-point budget error

Christopher Hildebrand

Jan 5

I built a physics engine where gravity is just a floating-point budget error

#python #simulation #algorithms #opensource

2 min read

Cover image for RWA New Strategy: A Step-by-Step Guide to Automated US Stock Token Trading with Inventor Workflow

fmzquant

Jan 6

RWA New Strategy: A Step-by-Step Guide to Automated US Stock Token Trading with Inventor Workflow

#tooling #microsoft #node #opensource

13 min read

Djelloul

Jan 5

I built a simple tool: Excel JSON with validation (free beta)

#python #webdev #productivity #opensource

1 min read

Cover image for I built a "Vibe-Based" Notepad with Tauri v2 (It weighs 4MB)

Jan 5

I built a "Vibe-Based" Notepad with Tauri v2 (It weighs 4MB)

#showdev #opensource #productivity #rust

2 min read

Cover image for I Built a Zero-Latency Chrome Extension with Svelte 5 (Runes) & Tailwind v4

Jan 5

I Built a Zero-Latency Chrome Extension with Svelte 5 (Runes) & Tailwind v4

#svelte #opensource #chromeextension #webdev

3 min read

Cover image for I Built a Free System Diagnostic Tool for Gamers - Here's Why

Jan 5

I Built a Free System Diagnostic Tool for Gamers - Here's Why

#windows #gaming #opensource #productivity

2 min read

lohnsonok

Jan 5

Model Workflow Context (MWC): The Open Standard AI Coding Tools Have Been Waiting For

#ai #developertools #opensource #cursor

4 min read

Jan 6

AI automation with C++ and Python

#agents #ai #automation #opensource

1 min read

Stefan Zipproth

Jan 5

I built a C++ Reasoning Engine that holds 1.7TB of Knowledge in RAM – zelph v0.9.2

#cpp #algorithms #wikidata #opensource

3 min read

Traft

Jan 5

VK Music Bot API: Open Source Backend for VK Music in Telegram

#showdev #api #backend #opensource

2 min read

Cover image for Building a Modern Data Platform — Dagster - Dbt - Iceberg

Jan 5

Building a Modern Data Platform — Dagster - Dbt - Iceberg

#architecture #dataengineering #docker #opensource

3 min read

Pradeep Kalluri

Jan 5

Rewriting My Apache Airflow PR: When Your First Solution Isn't the Right One

#programming #dataengineering #python #opensource

6 min read

Cover image for 10 Open Source Tools Developers Use to Reduce Repetitive CRUD

NocoBase

Jan 5

10 Open Source Tools Developers Use to Reduce Repetitive CRUD

#opensource #lowcode #nocode

14 min read

Cover image for How I Built a Tool to Detect AI-Generated Fake References

lidianycs

Jan 5

How I Built a Tool to Detect AI-Generated Fake References

#opensource #java #github #programming

5 min read

Cover image for Qwen Image 2512 Workflow: Complete Guide to AI Image Generation in 2026

Garyvov

Jan 5

Qwen Image 2512 Workflow: Complete Guide to AI Image Generation in 2026

#ai #deeplearning #opensource #tutorial

11 min read

Cover image for DeepSeek AI Models 2025: Open-Source GPT-5 Alternative

Dr. Hernani Costa

Jan 6

DeepSeek AI Models 2025: Open-Source GPT-5 Alternative

#ai #opensource #machinelearning #productivity

5 min read

Cover image for 🚀 Full-Stack AI Image Generation App | OpenAI DALL-E & Cloudinary

Jan 6

🚀 Full-Stack AI Image Generation App | OpenAI DALL-E & Cloudinary

#ai #react #opensource #mern

1 min read

Dmitry Labintcev

Jan 5

4 Days, 18,599 Lines: What Happens When You Go All-In on Pure C

#c #security #ai #opensource

5 min read

Cover image for Building a Browser Only Sudoku Solver

Corbin

Jan 5

Building a Browser Only Sudoku Solver

#javascript #webdev #opensource #sudoku

2 min read

zo Aoo

Jan 5

I built a "Hall of Fame" for n8n automations because I was tired of broken JSONs.

#showdev #n8nbrightdatachallenge #automation #opensource

1 min read

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