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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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Juan Denis

Jan 20

I Built a Free Alternative to cPanel - Here's What I Learned

#opensource #selfhosted #webdev #python

3 min read

Michael Amachree

Dec 16 '25

2024-2025 Project Showcase: Empowering Developers with Tools & Utilities

#showcase #opensource #svelte #mcp

6 min read

Dec 16 '25

OptaPlanner for Enterprise Planning Optimization: A Practical Guide

#algorithms #ai #tutorial #opensource

4 min read

Dec 16 '25

hypothesize: My R Package for Hypothesis Testing is Now on CRAN

#r #statistics #opensource #datascience

1 min read

Dec 16 '25

symlik: Symbolic Likelihood Models in Python

#python #statistics #machinelearning #opensource

2 min read

kt

Jan 18

IssueHub: Helping Beginners Find Their First OSS Contribution Opportunities

#showdev #opensource #nextjs #typescript

2 min read

alireza

Dec 29 '25

Stop Waiting for Backend APIs: Introducing Fakelab, a TypeScript-First Mock Server

#webdev #javascript #opensource #node

6 min read

Maya S.

Dec 16 '25

Migrate the legacy Greenplum to Apache Cloudberry with cbcopy

#database #dataengineering #postgres #opensource

7 min read

ShaiDev

Jan 20

Deterministic Physics in TS: Why I Wrote a Fixed-Point Engine

#typescript #programming #opensource #gamedev

3 min read

Dec 16 '25

Rerum: A Pattern Matching and Term Rewriting Library for Python

#python #programming #computerscience #opensource

2 min read

Dec 17 '25

Testing in Umami codebase - Part 1.2

#umami #opensource #testing #architecture

2 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

Navneet Singh Rajput

Dec 15 '25

I Launched a UI Library, Got 100+ Downloads But AI Couldn’t Understand My Docs

#opensource #react #ai #devto

1 min read

Taylor Lindores Reeves for Digital Speed

Jan 20

Spec-Driven Development: The Future of AI Coding

#webdev #ai #productivity #opensource

4 min read

Dec 15 '25

I Built CodeContext: An AI-Powered Tool That Analyzes Any Codebase in Seconds

#kotlin #opensource #devtools #ai

5 min read

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