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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 I hate WebP files. So I built a Chrome extension to kill them.

opzozi

Dec 16 '25

I hate WebP files. So I built a Chrome extension to kill them.

#opensource #javascript #chrome #webdev

2 min read

Anna Pastushko for AWS Community Builders

Jan 20

I Open-Sourced My Solutions Architect Portfolio (Real-World Case Studies)

#architecture #career #opensource #portfolio

2 min read

Cover image for 🎙️We’ve Built the Fastest Way to Run LLMs in Production (50x faster than LiteLLM)🔥

Jan 20

🎙️We’ve Built the Fastest Way to Run LLMs in Production (50x faster than LiteLLM)🔥

#webdev #programming #javascript #opensource

3 min read

Cover image for I’m WhiteDuck: Learning Code, Breaking Things, and Contributing to Open Source

WhiteDuck

Jan 20

I’m WhiteDuck: Learning Code, Breaking Things, and Contributing to Open Source

#opensource #devjournal #beginners #linux

3 min read

Cover image for Eliminate Redundant Markdown Parsing: Typically 2-10x Faster AI Streaming

king

Dec 16 '25

Eliminate Redundant Markdown Parsing: Typically 2-10x Faster AI Streaming

#ai #tooling #performance #opensource

4 min read

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

Juan Denis

Jan 20

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

#opensource #selfhosted #webdev #python

3 min read

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

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

symlik: Symbolic Likelihood Models in Python

#python #statistics #machinelearning #opensource

2 min read

Dec 16 '25

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

#r #statistics #opensource #datascience

1 min read

Cover image for IssueHub: Helping Beginners Find Their First OSS Contribution Opportunities

kt

Jan 18

IssueHub: Helping Beginners Find Their First OSS Contribution Opportunities

#showdev #opensource #nextjs #typescript

2 min read

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

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

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