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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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Damien Gallagher

Feb 12

When an AI agent tries to bully its way into your repo

#ai #agents #security #opensource

2 min read

Mar 18

I built 180+ free browser-side developer tools — no login, no data uploads

#webdev #javascript #opensource #devtools

2 min read

Mar 18

Open Source Maintainers Face Mental Health Crises: Sustainable Practices and Community Support Needed

#opensource #mentalhealth #maintainers #burnout

12 min read

Feb 26

How We Built a Welcome Email That Actually Gets Sent

#go #email #listmonk #opensource

5 min read

Onur Cinar

Mar 18

Infinite Data Processing in Go: Building Resilient Data Pipes with Channels

#go #datascience #opensource #architecture

5 min read

Ian Parent

Mar 18

Heuristic vs Semantic Eval: When <1ms Matters More Than LLM-as-Judge

#mcp #aiagents #observability #opensource

7 min read

Jit Chakraborty

Mar 18

How EchoId Actually Handles Privacy

#privacy #buildinpublic #webdev #opensource

1 min read

Mar 18

I Deleted 1,462 Lines from My Landing Page. Here's What Was in Them.

#webdev #ai #programming #opensource

5 min read

Mar 7

I Built a REST API for Bitcoin Core - Here's what I Learned

#bitcoin #api #python #opensource

5 min read

Sui Yang

Mar 7

I kept losing track of my Claude Code tabs. So I fixed it.

#claudecode #productivity #opensource #terminal

3 min read

Feb 12

Your AI Agent Just Leaked Your API Keys: Fixing MCP's Secrets Problem

#security #ai #opensource #javascript

2 min read

Mar 17

Making a Local LLM MCP Server Deterministic: Model Routing, Think-Block Stripping, and the Problems Nobody Warns You About

#discuss #ai #opensource #llm

10 min read

Feb 16

How We Added Custom Branding to Shared Video Pages

#go #webdev #opensource #css

5 min read

Shayan M Hussain

Feb 26

Redis Changed Its License. Here's How I Future-Proofed My Rate Limiter with Valkey and DragonflyDB.

#node #javascript #redis #opensource

5 min read

Mar 18

An AI agent compromised 7 open-source repos in one week. The only defense that worked was another AI.

#security #ai #mcp #opensource

6 min read

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