Skip to content

DEV Community

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

👋 Sign in for the ability to sort posts by relevant, latest, or top.

airmcp-dev

Apr 11

A simpler way to build MCP servers — would love feedback

#typescript #ai #opensource #mcp

3 min read

May 4

I tracked 4,200 startup GitHub orgs for six months — here's what actually predicts a fundraise

#datascience #startup #github #opensource

6 min read

Apr 11

How we turned a 91-action Catalan civic policy document into a remote MCP server

#mcp #ai #civictech #opensource

3 min read

Jude Hilgendorf

Apr 11

I Built an Offline Threat Hunting CLI That Runs Sigma Rules and Maps Everything to MITRE ATT&CK

#cybersecurity #python #opensource #tutorial

3 min read

Apr 11

New Build Tool for C/C++

#programming #c #cpp #opensource

1 min read

Apr 25

Built a local music player for myself after getting annoyed with VLC — runs in your browser

#showdev #opensource #sideprojects #webdev

1 min read

The_resa

Apr 16

Hermes Agent: Why does it feels different from other agents

#agents #ai #agentskills #opensource

4 min read

GDS K S

Apr 15

Checking TLS cert expiry across your infrastructure

#github #opensource #development #javascript

3 min read

Kalpak P S

Apr 11

I built a GitHub Wrapped that works year-round — and added an AI that roasts your code stats

#webdev #github #opensource #react

2 min read

Apr 11

Free, Open-Source LocalStack Alternative for AWS Testing

#aws #testing #opensource #localstack

4 min read

Apr 11

How I built an open-source observability layer for AI agents (and why it’s needed)

#ai #opensource #agents #langchain

4 min read

Apr 12

Crucix: An Open OSINT Dashboard Aggregating 27 Real-Time Data Sources

#osint #security #datascience #opensource

1 min read

MUSGRAVTE

Apr 11

Releasing react-modern-audio-player v2.0.0 - Lighter, Waveforms, and Truly Customizable

#showdev #react #webdev #opensource

2 min read

Muhammed Rasin O M

Apr 11

The Best Python Library for Generating Quick Synthetic Data in 2026

#python #datascience #testing #opensource

11 min read

Apr 11

I Build AI Agents for a Living. Then I Decided to Build an Actual Brain.

#ai #neuroscience #opensource #machinelearning

7 min read

👋 Sign in for the ability to sort posts by relevant, latest, or top.