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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 Introducing Supabomb: Open Source Supabase Penetration Testing

Victor Yrazusta Ibarra

Dec 8 '25

Introducing Supabomb: Open Source Supabase Penetration Testing

#supabase #security #opensource #cli

8 min read

Cover image for Stop Fighting Your Circuit Breaker: A Physics-Based Approach to Node.js Reliability

Jan 11

Stop Fighting Your Circuit Breaker: A Physics-Based Approach to Node.js Reliability

#node #devops #architecture #opensource

3 min read

Cover image for Building Modern Backends with Kaapi: Request validation Part 2

ShyGyver

Jan 11

Building Modern Backends with Kaapi: Request validation Part 2

#showdev #typescript #node #opensource

3 min read

Cover image for Hadisku 2.5.0: Cross-Platform Hadith App with Card Generator 🚀

Cahyanudien Aziz Saputra

Jan 11

Hadisku 2.5.0: Cross-Platform Hadith App with Card Generator 🚀

#opensource #islam #wecoded

2 min read

Arnab KarSarkar

Dec 8 '25

I Built an Open-Source Privacy Firewall for ChatGPT (Runs 100% Locally)

#ai #opensource #security #privacy

4 min read

Steven Hur

Dec 9 '25

Continuous Journey through Dagster - bugs and testing

#aws #opensource #testing

2 min read

Cover image for Apache Dev List Digest: Iceberg, Polaris, Arrow & Parquet (Nov 24-Dec 8, 2025)

Dec 8 '25

Apache Dev List Digest: Iceberg, Polaris, Arrow & Parquet (Nov 24-Dec 8, 2025)

#dataengineering #opensource #architecture #community

6 min read

Boring European Dev

Jan 9

Help Validate: A GitHub Project Matching Tool for Developers

#github #webdev #validation #opensource

1 min read

JJ (yuasa)

Dec 11 '25

Trying LLM-Based Threat Modeling

#ai #llm #security #opensource

7 min read

Triple Gyrus Core

Dec 7 '25

Triple Gyrus Core: An Accessible Data and Software System

#showdev #a11y #datascience #opensource

2 min read

Cover image for Day 00 - Prelude

Pillippa Ignacia Pérez Pons

Dec 20 '25

Day 00 - Prelude

#durableobjects #tutorial #opensource #distributedsystems

7 min read

Cover image for 16+ Free HTML Admin Dashboard Templates for SaaS

Jan 11

16+ Free HTML Admin Dashboard Templates for SaaS

#webdev #html #opensource #saas

6 min read

canonical

Dec 7 '25

A Theoretical Analysis of Reversible Computation for Programmers

#programming #architecture #nop #opensource

23 min read

Dec 11 '25

How I Mastered Chaos (Testing): My LFX Journey with CloudNativePG

#cncf #lfx #devops #opensource

2 min read

Cover image for OpenTelemetry for Go: Measuring the Overhead

Coroot

Dec 10 '25

OpenTelemetry for Go: Measuring the Overhead

#observability #opensource #devops #kubernetes

7 min read

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