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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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manja316

Mar 11

The 5 Security Holes in Almost Every MCP Server (And How to Find Them)

#ai #security #mcp #opensource

3 min read

Feb 5

Building a Privacy-First URL Shortener on Blockchain

#privacy #blockchain #webdev #opensource

1 min read

Dariusz Newecki

Mar 10

My Constitutional Auditor Missed Dead Code. Here's Why — and What I'm Doing About It.

#ai #python #devops #opensource

3 min read

Dimitris Kyrkos

Mar 11

The EU Security Pincer: Why You Can’t Solve NIS2 Without the Cyber Resilience Act (CRA)

#discuss #security #devops #opensource

3 min read

Mar 11

How I Built a Duplicate File Finder That Handles 1 Million Files Without Crashing

#python #opensource #cli #tutorial

5 min read

Kai

Feb 5

Observability as Agent OS: The Open-Source Alternative

#ai #agents #observability #opensource

6 min read

Yuwei Xiao

Mar 11

pg_ducklake: Columnar Storage for PostgreSQL

#database #postgres #duckdb #opensource

2 min read

SIKOUTRIS

Mar 11

Building a French Training Directory: Parsing Government Certification Data at Scale

#php #webdev #opensource #database

4 min read

Sara Han for Pruna AI

Mar 11

Pruna 0.3.2: More OSS Algos, More Ways to Optimize

#news #opensource #machinelearning #ai

5 min read

Mar 11

OpenAI Batch API: Adaptive Status Checks

#ai #javascript #rxjs #opensource

5 min read

Mar 11

I Built a Code AST MCP That Saves 70% Tokens and Went Viral (54K+ Views)

#mcp #ai #programming #opensource

2 min read

Feb 9

10 Open Source Tools to Build Production-Grade Local AI Agents in 2026: Say Goodbye to Sky-High APIs

#opensource #productivity #ai #agents

6 min read

Echo.lee for seekdb

Mar 11

Building RAG & Knowledge Bases with seekdb: Three Paths, One Stack

#ai #vectordatabase #rag #opensource

4 min read

Mar 11

Building an IoT-Based Transport Monitoring System 🚚📡

#transportation #opensource #arduino #smartcities

5 min read

Luis Donis

Mar 11

How I Structure a Modular Rails SaaS Application

#rails #saas #architecture #opensource

4 min read

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