DEV Community

For maintainers: Showcase the open source project you maintain and invite contributors to get involved!

For contributors: Highlight the contributions you're making during Hacktoberfest and what you learned along the way!

For everyone: Reflect on your Hacktoberfest experience and what open source means to you.

🎃 Spotlight your projects and contributions as you go: 2025 Hacktoberfest Writing Challenge is now live!

Jess Lee for The DEV Team ・ Oct 1

#hacktoberfest #devchallenge #opensource

Cover image for Hacktoberfest 2025 Reflection: Three Years, Three Lessons, One Evolution

Hacktoberfest: Open Source Reflections

Lymah

Oct 30

Hacktoberfest 2025 Reflection: Three Years, Three Lessons, One Evolution

#devchallenge #hacktoberfest #opensource

7 min read

Danilo Poccia for AWS

Oct 31

Never Forget a Thing: Building AI Agents with Hybrid Memory Using Strands Agents

#ai #aws #opensource #python

10 min read

Education Track: Build Apps with Google AI Studio

Shyam Kumar V N

Oct 30

The Allegorical Illustrator

#deved #learngoogleaistudio #ai #gemini

2 min read

Elvis Sautet

Oct 31

Stop Doing Business Logic in Webhook Endpoints. I Don't Care What Your Lead Engineer Says.

#api #performance #webdev #backend

14 min read

Athreya aka Maneshwar

Oct 31

Deep Dive into SQLite’s Internal Architecture

#webdev #programming #database #beginners

5 min read

Chandrashekhar Kachawa

Oct 31

How Does React's useEffect Really Work?

#webdev #react #programming #beginners

3 min read

Hacktoberfest: Maintainer Spotlight

Shamli Singh yadav

Oct 31

CSS Art Museum: Where Creativity Meets Code 🎨 || Maintainer Spotlight

#devchallenge #hacktoberfest #opensource

3 min read

Lou Creemers

Oct 31

Modern C# Development: Target-Typed `new`

#programming #csharp #beginners #dotnet

3 min read

Sylwia Laskowska

Oct 31

🎃 10 Scary Lines of Code I Wish I Never Wrote 💀

#webdev #programming #javascript #learning

2 min read

Raj Murugan

Oct 31

From Windows/Corona to Linux V-Ray Standalone on AWS Deadline Cloud – Architecture That Actually Worked

#architecture #aws #linux

3 min read

Evgeny Pantela

Oct 31

Worker Pools in Go: The Minimal Pattern I Use for High-Efficiency Concurrency

3 min read

Shivangi Varshney

Oct 31

Integrating Airflow, dbt, Postgres and Docker: Building a Modern, Scalable Data Workflow

#airflow #docker #beginners #databuildtool

6 min read

Taha Majlesi Pour

Oct 31

⚛️ React Testing in 2025: Stop Mocking, Start Trusting Your Components

2 min read

Vivek Jaiswal

Oct 31

🧠 Building an Enterprise-Grade Grammar API with AI/ML Integration

#api #architecture #ai #opensource

10 min read

Bolaji Ajani

Oct 31

Mastering Full-Text Search: Why Tools Like OpenSearch, Elasticsearch, and Meilisearch Matter

#meilisearch #elasticsearch #opensearch #fulltextsearch

6 min read

Simc Dev

Oct 31

How to push an empty commit?

#git #beginners #webdev #programming

2 min read

İlker Balcılar

Oct 31

How to Debug Hono Applications with Telescope – Laravel Telescope for Bun & Node.js

#debugging #honojs #bunjs #devtools

3 min read

Aziro Tech

Oct 31

Agentic AI vs Generative AI: What’s the Real Difference?

#agents #ai #machinelearning

4 min read

Olivia

Oct 31

Error Handling in Rust: From Panic to anyhow and thiserror

#programming #rust #errors #tutorial

10 min read

Anderson Leite

Oct 31

Rethinking Observability Costs: How Structured Logging Can Save You Thousands

#infrastructure #logging #costsavings #softwareengineering

15 min read

Arthur

Oct 31

A Dashboard About Scammers, Telemarketers, My Cellphone, and Who Annoys Me Most

#tableau #datascience #dataengineering #python

3 min read

Demola Malomo for Flutterwave Engineering

Oct 31

How to Build a Multi-Currency Checkout in 5 Steps

#checkout #crossborder #payment #fintech

8 min read

Edris Ranjbar

Oct 31

🧊 Coolping — Because Ping Should Be Cool 😎

#showdev #cli #tooling #opensource

2 min read

Adam Cooper

Oct 31

Code Your Budget: A 20-Minute Python Script That Categorizes Spending from CSV

#ai

3 min read

AskPaul

Oct 31

OSpark: Building Event-Driven Streaming Responses with MiroMind's MiroFlow Foundation

#agents #ai #opensource #architecture

4 min read