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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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May 7

Best AI Gateway to Optimize Claude Code Token Cost

#ai #programming #opensource #devops

5 min read

May 7

What MCP Solves and What It Deliberately Does Not.

#ai #llm #python #opensource

6 min read

May 7

Open Source Customer Support Ticket System: Best Picks for 2026

#opensource #productivity #startup #tooling

8 min read

Melphins

May 7

Database migrations are critical. Forgetting them costs teams hours weekly.

#showdev #database #opensource #tooling

1 min read

May 7

Just released a new version of AutoFilterWpfDataGrid

#showdev #dotnet #opensource #ui

1 min read

May 7

Free Workshop: Building a Company Around an OSS Project

#opensource #startup #entrepreneurship #learning

1 min read

Horilla

May 7

Horilla CRM: A Free & Open-Source Django CRM for Modern Businesses in 2026

#opensource #django #crm #python

5 min read

May 11

You’re Not Building Apps. You’re Designing Systems.

#webdev #programming #opensource #architecture

2 min read

SweepBase

May 7

How I Maintained an Awesome-List of 136 Crypto Cards as a CI-Linted Dataset

#showdev #github #opensource #webdev

2 min read

May 7

Building EDIFlow - Infrastructure Layer: Parsers, Repositories & Data Packages (Part 4)

#typescript #cleanarchitecture #opensource #edi

6 min read

May 7

The Next Generation of Eventide

#eventsourcing #architecture #ruby #opensource

1 min read

May 7

I got tired of using the terminal to launch emulators, so I built a free system tray GUI to manage them.

#androiddev #opensource #android

2 min read

May 11

I kept rewriting the same regex passes against LLM output. So I made a library.

#python #ai #llm #opensource

5 min read

WonderLab

May 7

One Open Source Project a Day (No. 58): Agent Skills - Injecting Senior Engineer Discipline into AI Coding Agents

#opensource #agentskills #claude #agents

7 min read

yong pan

May 7

I built a free, no-registration suite of online tools for developers

#nocode #webdev #workstations #opensource

1 min read

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