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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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Kumaravelu Saraboji Mahalingam

Apr 23

Apache Arrow File Anatomy: Buffers, Record Batches, Schemas, and IPC Metadata Explained 🏹📦

#dataengineering #apachearrow #analytics #opensource

9 min read

Apr 23

I Built an Open Source Directory for Devs Because Discovery is Still Broken in 2026

#opensource #ai #buildinpublic #nextjs

2 min read

Evgeniy Petrukovich

Apr 23

I turned the cutout in the MacBook screen into a dynamic user interface element (DynamicNotch for macOS)

#programming #productivity #opensource #swift

2 min read

Abraham Esandayinze Tanta

Apr 23

The Complete Guide to NDPA 2023 Compliance in React and Next.js

#nextjs #opensource #privacy #react

2 min read

Sam

Apr 23

Sovereign AI – Why Your Agents Should Run on Your Hardware

#ai #security #opensource #privacy

3 min read

May 7

Add persistent AI memory to any script in 5 minutes (Python, Bash, Node — just curl)

#ai #agents #mcp #opensource

5 min read

Vilius

May 6

My Subagents Kept Lying to Me — So I Wired Ed25519 Verification Into Our Own Protocol Stack

#ai #python #opensource #agents

4 min read

Chirag

Apr 23

Is Jitsi Better Than Zoom, Cost-Wise? Or Should We Just Stick to Zoom?

#jitsi #webdev #opensource #productivity

2 min read

Apr 22

Apache Data Lakehouse Weekly: April 16–22, 2026

#news #architecture #dataengineering #opensource

7 min read

psychomafia.tiger

Apr 23

A clone of our VS Code extension appeared on OpenVSX five days before we open-sourced the repo. It has 5,090 downloads and is using our GitHub OAuth app.

#discuss #opensource #vscode #security

8 min read

정성연

Apr 23

A lightweight ODM for Qdrant — looking for feedback

#ai #python #opensource #llm

1 min read

YHH

Apr 23

Designing a Hooks System for AI Agent CLIs: 4 Lifecycle Points That Cover Everything

#typescript #opensource #tutorial #cli

8 min read

Apr 23

I Want to Build a Note App Where Discoveries Happen

#showdev #opensource #productivity #sideprojects

5 min read

Apr 23

Update: My Phone-Built Auth CLI Hit 270+ Runs in 48 Hours And Already Got Its First Contributor

#node #backend #opensource #typescript

2 min read

willamhou

Apr 23

Building an IPC bus for Kubernetes sidecars: WAL, DLQ, and ring-buffer backpressure

#kubernetes #go #opensource #distributedsystems

10 min read

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