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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 22

Open Source: Unified Network Management Platform for Huawei Switches

#showdev #automation #networking #opensource

2 min read

Jarrad Bermingham

Feb 25

I built a free alternative to LangSmith — one decorator, local SQLite, zero infrastructure

#python #ai #opensource #devtools

4 min read

Etop - Essien Emmanuella Ubokabasi for Blnk Finance

Jan 22

Understanding Balances in Ledgers

#fintech #systemdesign #opensource #ledger

4 min read

Yu Han

Feb 25

2x Faster JSON Schema Validation in Java (Without JsonNode)

#programming #java #json #opensource

2 min read

Feb 4

"Stop Treating All AI Memories the Same — Introducing Cortex, Who Forgot?"

#ai #mcp #opensource #machinelearning

3 min read

Soubhik Mukherjee

Jan 22

I built a lightweight Unity-like 2D game engine in JavaScript

#webdev #gamedev #opensource #javascript

1 min read

Feb 25

Best Helicone Alternative for Enterprise AI Systems

#ai #programming #tutorial #opensource

6 min read

Feb 25

Best OpenRouter Alternative for Production AI Systems in 2026

#ai #programming #mcp #opensource

5 min read

Nurul Islam Rimon

Jan 22

Monitoring Linux servers without Grafana, Docker, or agents

#linux #devops #opensource #monitoring

1 min read

Alain Prasquier

Jan 23

Announcing Org Agentic Toolkit (OAT): sane rule management for coding agents (Cursor, Claude Code, etc.)- Open Source

#ai #python #productivity #opensource

2 min read

Ankit Anand ✨

Feb 25

How to Collect .NET Application Logs with OpenTelemetry

#dotnet #monitoring #opensource #tutorial

6 min read

ohmylock

Feb 25

I built glenv — a CLI to stop manually managing GitLab CI/CD variables

#gitlab #devops #go #opensource

3 min read

Jan 22

Seeding folder structures

#webdev #programming #ai #opensource

3 min read

Karlis

Feb 25

My 60 USD/month dev environment (Copilot Pro, Claude, Gemini, Perplexity PRO)

#ai #programming #opensource #productivity

1 min read

Feb 25

From 2 sources to 5: How I upgraded my "idea reality check" MCP server in one day

#ai #mcp #opensource #python

2 min read

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