EntrantHub

EntrantHub.com is an online community hub for tech enthusiasts, aggregating programming contests, hackathons, competitions, and more from multiple platforms into a single, unified experience.

Built with a tech stack emphasizing strong type safety and high concurrency.

Features

• Unified Contest Aggregation: Track programming contests from Codeforces, LeetCode, AtCoder, and CodeChef in one place
• Hackathon Discovery: Browse and filter hackathons from DevPost
• Kaggle Competitions: Stay updated on active data science and ML competitions
• GSoC Explorer: Explore Google Summer of Code organizations and projects
• LeetCode Contest Analytics: View contest rankings, question statistics, and rating predictions
• Real-time Updates: Background schedulers keep data fresh from all platforms
• Responsive Design: Works seamlessly on desktop and mobile devices

Tech Stack

• JDK 21
• Scala 3.7.2
• Apache Pekko
• PostgreSQL 15
• Apache Kafka 4.1

Development

git clone git@github.com:baoliay2008/entranthub.git
cd entranthub

# configure environment
cp .env.example .env
# !!! edit .env with your database and Kafka configuration

# backend tests
sbt test

# run with sbt
sbt run

# or build a fat JAR
sbt assembly
java -jar target/scala-3.7.2/entrant.fyi-assembly-0.1.0.jar

Roadmap

• Question difficulty rating via Maximum Likelihood Estimation
• User accounts
  • Custom event submissions
  • Follow other users

License

Note: This repository contains only core backend code under AGPL-3.0.