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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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May 27

You Don't Need Enterprise LLMOps, You Need a Better Dashboard

#llm #opensource #ai #costtracking

2 min read

May 18

PostMTA: The Complete 2026 Guide to Enterprise Open Source Email Delivery

#kumomta #email #opensource #mta

5 min read

May 13

I made a free, open source, self-hostable alternative to Mockaroo

#webdev #productivity #opensource #testing

3 min read

DasClown

May 13

5 open-source MCP servers I built for EU agriculture, pharma, climate & law

#mcp #opensource #python #ai

1 min read

Alan West

May 13

How to stop rewriting your storage layer every time you switch providers

#webdev #javascript #typescript #opensource

5 min read

May 13

Why Most Codebases Rot (And How Systems Prevent It)

#webdev #programming #opensource #architecture

2 min read

May 13

Vuls vs Trivy vs Grype: when to pick which CVE scanner (from the team that built one more)

#cybersecurity #linux #devops #opensource

4 min read

May 18

PostMTA: The Complete 2026 Guide to Enterprise Open Source Email Delivery

#devops #infrastructure #opensource #tutorial

6 min read

May 18

PostMTA vs SendGrid: The Complete 2026 Comparison

#devops #infrastructure #opensource #saas

4 min read

xuelinger

May 13

Why I Built an Open-Source Alternative to Shorebird for Flutter Android

#flutter #android #opensource #mobile

3 min read

EdFife

May 13

My AI Remembers Its Mistakes. Permanently. Here's the Engineering.

#ai #python #opensource #llm

13 min read

Dan Evans

May 13

I Built a Demo for Deterministic AI Execution Governance

#ai #opensource #security #machinelearning

2 min read

marsmanleo

May 27

Claude.md is for Context. MarsNMe is for Continuity.

#mcp #ai #memory #opensource

2 min read

Vlad Nadymov for Beton

May 27

Billing Live, Agent Wiring & First Real Signups

#opensource #pricing #saas

2 min read

May 13

Three Things "Set HTTPS_PROXY" Cannot Stop

#security #ai #linux #opensource

6 min read

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