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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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Jan 16

Just open sourced a dating platform under a custom OSI-compatible license (CPL-1.0) — would love feedback on the license itself

#opensource #webassembly #pwa

2 min read

Mike

Jan 27

🦆 Stop Copy-Pasting Between AI Tabs — Use MCP Rubber Duck Instead

#ai #mcp #opensource #llm

6 min read

The Living Algorithms

Dec 27 '25

I stopped reading code and started mapping it (and it saved my sanity)

#vscode #javascript #webdev #opensource

3 min read

Jan 16

Security best practices in Umami codebase - part 1.1

#security #umami #opensource #authentication

4 min read

Sylvester Promise

Dec 27 '25

Day 35 of improving my Data Science skills

#ai #productivity #tutorial #opensource

2 min read

Dmitry Labintcev

Jan 5

4 Days, 18,599 Lines: What Happens When You Go All-In on Pure C

#c #security #ai #opensource

5 min read

image2url

Dec 22 '25

Building a scalable multi-bucket load balancer for Cloudflare R2

#webdev #opensource #cloud

5 min read

Murat

Dec 23 '25

From feature engineering to deployment: a local-first MLOps workflow with Skyulf

#mlops #opensource #datascience #machinelearning

2 min read

Rost

Jan 27

Wayland vs X11: 2026 Comparison

#linux #devops #opensource

8 min read

Yiğit

Jan 6

🚀 SchedPay_Free | Open-Source, Docker-Based Appointment & Payment Management System

#opensource #docker #dotnet #webdev

2 min read

Saad I.

Jan 26

Organize your projects with Blocks, keep Everything Together

#opensource #productivity #webdev #nextjs

2 min read

Charles Fonseca

Dec 23 '25

Building a Redis Clone in Zig—Part 4

#programming #opensource #learning #performance

5 min read

Jan 26

I built the CMS I always wanted for my personal sites

#showdev #webdev #php #opensource

10 min read

Sylvester Promise

Dec 22 '25

Day 30 of improving my Data Science skills

#ai #productivity #tutorial #opensource

1 min read

Sylvester Promise

Dec 22 '25

Day 29 of improving my Data Science skills

#ai #productivity #tutorial #opensource

1 min read

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