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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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Dec 18 '25

Carific.ai: Building a Type-Safe Profile Editor with TanStack Form, Zod, and Live PDF Preview

#typescript #react #nextjs #opensource

12 min read

Mollie Pettit for Google AI

Dec 17 '25

Agent Factory Recap: Deep Dive into Gemini CLI with Taylor Mullen

#gemini #agents #cli #opensource

7 min read

oheyek

Nov 27 '25

I built a Python Video Downloader for my Engineering Thesis 🎓🎥

#showdev #python #opensource #productivity

2 min read

Cover image for Canopy! It's a fast rust CLI that prints directory trees. Just something i dove into when getting back into Rust!

VIREX

Nov 13 '25

Canopy! It's a fast rust CLI that prints directory trees. Just something i dove into when getting back into Rust!

#programming #rust #opensource #database

3 min read

Nov 14 '25

How to Scale Automated Testing with Open Source Testing Tools?

#opensource #testingtools #softwaretesting #testautomation

3 min read

Cover image for I Built Everything Fast… Then One Page Destroyed My Confidence

Random

Dec 9 '25

I Built Everything Fast… Then One Page Destroyed My Confidence

#webdev #programming #javascript #opensource

3 min read

Cover image for Day 4 of building my Habit Tracker app!

Nov 14 '25

Day 4 of building my Habit Tracker app!

#reactnative #opensource

1 min read

Dec 18 '25

DEVOPS PERIODIC TABLE AND RULES HT: HASHICORP TERRAFORM

#showdev #devops #opensource #developer

1 min read

Cover image for 🧠Maybe I Just Do Not Get It!

marcosomma

Dec 2 '25

🧠Maybe I Just Do Not Get It!

#ai #rag #machinelearning #opensource

12 min read

Ashkanmirgomari

Nov 17 '25

🚀 I just built Datana - a secure local database system!

#python #database #security #opensource

1 min read

Cover image for 🧞‍♂️ Introducing Code-Genie: A Small CLI Tool That Helps You Edit & Generate Code Using Natural Language

Sherin Joseph Roy

Nov 13 '25

🧞‍♂️ Introducing Code-Genie: A Small CLI Tool That Helps You Edit & Generate Code Using Natural Language

#opensource #ai #productivity #devto

2 min read

Oğuzhan

Nov 14 '25

I Built 150+ Free Tools That Run 100% in Your Browser — No Logins, No Limits, No Ads

#productivity #webdev #tooling #opensource

2 min read

Cover image for [Update] VAC: A Memory Layer That Makes LLMs Remember You

Viktor Kuznetsov | VAC Memory System CEO

Dec 7 '25

[Update] VAC: A Memory Layer That Makes LLMs Remember You

#ai #rag #opensource #machinelearning

3 min read

Cover image for I built a Professional Automation Toolkit - 6 tools + FastAPI orchestrator (6,877 LOC)

Nov 26 '25

I built a Professional Automation Toolkit - 6 tools + FastAPI orchestrator (6,877 LOC)

#python #automation #fastapi #opensource

2 min read

Dec 11 '25

I Got Obsessed With 2-Byte Deltas and Built a Delta Compressor That Actually Hits Them

#rust #performance #compression #opensource

11 min read

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