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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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GDS K S

Apr 10

Parsing 11 languages in pure Go without CGO: how I replaced regex with a tree-sitter runtime

#go #webdev #programming #opensource

4 min read

Mar 9

You Built the Agents. Who Governs Them?

#ai #mcp #devops #opensource

5 min read

𝗝𝗼𝗵𝗻

Apr 11

From a Calorie Counter Prompt to a Local-First Nutrition Tracker

#opensource #webdev #react #buildinpublic

3 min read

404Saint

Apr 11

SurfaceLens V2: Infrastructure Attack Surface and Shadow IT Intelligence Engine

#security #cybersecurity #python #opensource

5 min read

Wes

Mar 31

Your Package Manager's Installer Doesn't Know Fish Exists

#opensource #go #cli #tooling

5 min read

Mar 8

Outline vs AFFiNE: Which Should You Self-Host?

#selfhosted #opensource #homelab #linux

3 min read

Rotifer Protocol

Mar 22

Rotifer v0.6: Web Registry — Genes Go From CLI to Browser

#ai #opensource #devtools #webdev

2 min read

Rotifer Protocol

Mar 22

Rotifer v0.6.5: Cross-Binding Proof — How We Validated IR Portability Without Deploying to a Blockchain

#ai #webassembly #opensource #rust

2 min read

Mar 8

Outline vs SiYuan: Which to Self-Host?

#selfhosted #opensource #homelab #linux

3 min read

Apr 11

Independent convergence on specification-first AI code verification

#ai #opensource #typescript #devops

2 min read

Mar 8

Coolify vs Cloudron vs CapRover in 2026: I Self-Hosted Apps on All Three

#selfhosted #opensource #devops #webdev

9 min read

Apr 11

I scanned my own Docker images. Here's what I found — and how I built the scanner.

#docker #security #devsecops #opensource

5 min read

Mar 9

I gave my AI agent a debugger — it stopped adding print statements and asking me to restart

#mcp #ai #opensource #rust

5 min read

Shakib S.

Mar 9

I Tried to Build a Local Claude-Style Assistant

#devops #machinelearning #opensource #openclaw

7 min read

Toprak

Mar 8

I built an open-source encyclopedia of psychoactive substances with Next.js 16 — here's what I learned

#nextjs #opensource #webdev #database

2 min read

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