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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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Mar 16

✍ Architecting Enterprise SaaS: JWTs to synchronous payment gateways. ✍

#ai #tutorial #devops #opensource

1 min read

Swapanth Vakapalli

Mar 16

I built ragway — a Python RAG library controlled by a single YAML file

#python #rag #llm #opensource

2 min read

Jonathan Fishner for OneCLI

Mar 16

Your AI Agent Has Your Stripe Key. What Could Go Wrong?

#agents #security #rust #opensource

4 min read

Mar 16

ReelKit: A Virtualized TikTok-Style Slider Engine

#react #typescript #opensource #webdev

4 min read

Mar 16

Polymarket trading bot : Mountain of Dual-side arbitrage small profit

#polymarket #arbitrage #python #opensource

3 min read

Sabahattin Kalkan

Mar 16

I built a self-hosted LLM proxy that supports 12 providers (Claude, GPT-4o, Gemini, Ollama...)

#llm #ai #opensource #go

2 min read

Cubevlmu

Mar 16

Building an open-source Flutter client for Flarum (StarForum)

#flutter #mobile #webdev #opensource

3 min read

Mar 16

GitHub Actions costs are leaking, and most teams don't notice until it's too late

#devops #github #cicd #opensource

3 min read

Renee Lin

Mar 16

I automated my daily browser tasks without writing a single line of code

#opensource #productivity #automation #webdev

2 min read

Дилшод Расулов

Mar 16

PVEmanager: Self-hosted Panel for Managing Proxmox Clusters

#devops #proxm #virtualization #opensource

3 min read

Dennis Havermans

Mar 16

I built a tool to stop my AI agent instruction files from drifting out of sync

#devtools #ai #opensource #productivity

2 min read

Muhammed Yasin Yılmaz

Mar 16

Building an Open-Source AI Engine for Training Language Models — Cevahir AI

#ai #opensource #machinelearning #phyton

3 min read

Mar 16

MiroFish: Simulating the Future, One Agent at a Time

#ai #agents #opensource #simulation

3 min read

TI for Kreuzberg

Mar 16

How to Extract Text from PDF in Python (2026)

#python #pdf #opensource #ai

5 min read

Mar 16

ayat saadati — Complete Guide

#programming #tutorial #opensource #webdev

5 min read

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