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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 Is the Tailwind "Slow-Motion Demise" a Replay of the Cloud Wars?

Alexandru Spînu

Jan 9

Is the Tailwind "Slow-Motion Demise" a Replay of the Cloud Wars?

#ai #tailwindcss #opensource #programming

2 min read

Cover image for How I Built a Golang AI Gateway to Cut OpenAI Costs by 90%

Jan 6

How I Built a Golang AI Gateway to Cut OpenAI Costs by 90%

#go #ai #systemdesign #opensource

2 min read

Dec 7 '25

AI Agents Are Goldfish: Why Your LLM Forgets Everything (And How to Fix It)

#ai #machinelearning #rust #opensource

3 min read

Cover image for Self-hosting DocuSeal the easy way

atakanozt

Jan 9

Self-hosting DocuSeal the easy way

#docker #selfhosted #tutorial #opensource

4 min read

Dec 7 '25

Optimizing a 40-Year-Old Government Database: From 3s to 30ms

#performance #database #automotive #opensource

2 min read

Cover image for Linux in Action: Mastering Crontab for Task Scheduling (RHCSA & DevOps)

Dec 11 '25

Linux in Action: Mastering Crontab for Task Scheduling (RHCSA & DevOps)

#cloudwhistler #devops #opensource #linux

3 min read

HEAVSTAL TECH™

Jan 9

HEAVSTAL TECH -@heavstaltech/api

#api #npm #opensource #javascript

4 min read

Sui Gn

Jan 9

Inherent Logic III.

#programming #opensource #coding #design

1 min read

Cover image for Announcing pytest-test-categories v1.1.0: Bring Google Testing Philosophy to Python

Mike Lane

Dec 4 '25

Announcing pytest-test-categories v1.1.0: Bring Google Testing Philosophy to Python

#python #testing #pytest #opensource

3 min read

Cover image for Tired of Accidentally Zipping Build Artifacts? Try "dnx zipsrc"!

jsakamoto

Jan 9

Tired of Accidentally Zipping Build Artifacts? Try "dnx zipsrc"!

#dotnet #productivity #cli #opensource

4 min read

Cover image for I built a FastAPI admin panel that doesn't suck (and here's why it's different)

Muhammed Rasin O M

Dec 6 '25

I built a FastAPI admin panel that doesn't suck (and here's why it's different)

#webdev #python #fastapi #opensource

3 min read

Cover image for I built a CLI that lets me use AI directly from my terminal

Alexandre Vieira

Jan 9

I built a CLI that lets me use AI directly from my terminal

#ai #cli #opensource #offline

2 min read

Cover image for Building a Production-Ready Data Marketplace: Architecture, Security, and Lessons Learned

CyberSolo

Dec 4 '25

Building a Production-Ready Data Marketplace: Architecture, Security, and Lessons Learned

#opensource #node #agents #data

5 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 AI Flashcard Generator With Ollama

Anna Villarreal

Jan 9

AI Flashcard Generator With Ollama

#ai #opensource #learning #resources

6 min read

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