About Me
Mohit Mishra
Software engineer obsessed with performance, systems architecture, and full-stack excellence.
Publications & Books:
Executable Files for Linux: Under the Hood of ELFs (Forthcoming June 2026)
Apress • Author: Mohit Mishra
Deep dive into Executable and Linkable Format (ELF), binary analysis, dynamic linking, and kernel-level execution processes.
View PublicationGlobal Perspectives on Climate Change, Inequality, and Multinational Corporations (April 2025)
Springer • Author: Mohit Mishra
Investigates climate change mitigation, global inequality, and environmental challenges.
View PublicationAbout This Project
The Challenge
Distributed systems are among the most difficult areas of computer science to learn. The concepts are abstract, the failure modes are subtle, and the debugging is punishing. Traditional education approaches, whether textbooks or lectures, struggle to convey the visceral experience of watching your carefully designed system crumble under network partitions.
Our Approach
This platform takes a different approach: learning by building. Instead of reading about consensus algorithms, you implement them. Instead of memorizing CAP theorem trade-offs, you experience them firsthand when your counter loses updates during a network split.
Each challenge is designed to teach a specific concept through implementation. The progression is carefully crafted so that each new task builds on skills from previous ones. By the time you complete all tracks, you will have implemented everything from basic message passing protocols to full Raft consensus with log replication.
The Curriculum
The curriculum is organized into four categories spanning 15 tracks. Foundations covers the basics: RPC protocols, unique ID generation, and gossip. Consensus dives into state management: CRDTs, leader election, and the complete Raft protocol. Scalability teaches the building blocks of large systems: caching, proxies, load balancers, and message queues. Advanced topics include sharding, distributed transactions, and paradigms like MapReduce.
Inspiration
This project draws heavy inspiration from several excellent resources:
- ➤Maelstrom by Jepsen provides the testing framework and protocol specification that makes simulating distributed systems practical.
- ➤Gossip Glomers by Fly.io demonstrates how to structure progressive distributed systems challenges.
- ➤MIT 6.824 remains the gold standard for distributed systems education, and its lab structure influenced our track design.
Target Audience
This platform is designed for software engineers who have experience with single-machine programming but want to understand distributed systems. Whether you are preparing for system design interviews, transitioning to backend infrastructure roles, or simply curious about how systems like Kafka, etcd, or CockroachDB work under the hood, these challenges will give you practical experience.
Support This Project
This platform is completely free to use. All learning content, tracks, and code execution are provided at no cost to learners. However, keeping it running involves significant infrastructure and development costs.
What your support covers:
- ➤Code Execution API - Judge0 API costs for running thousands of submissions daily
- ➤Hosting & Database - Vercel hosting and Neon PostgreSQL for 24/7 availability
- ➤Maintenance - Bug fixes, security updates, and infrastructure monitoring
- ➤New Features - Continuous development of new tracks, tasks, and learning features
If you've found this platform valuable for your learning journey, consider supporting its development. Every contribution helps keep the servers running and the content growing.
Ready to Start?
Begin with Track 1: The Messenger. You will implement a basic JSON message parser and learn the Maelstrom protocol that underlies all subsequent challenges.