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15b4t/README.md

Isbat Bin Hossain

Backend developer with a full-stack background. I enjoy building web apps and APIs, and lately I've been going deeper into how things work at the system level.

Projects

  • nodechess - Real-time multiplayer chess. WebSockets, Redis for session caching, React frontend.
  • create-x-lite - CLI for scaffolding production-ready Express.js projects. Inspired by create-vite.
  • walrus - A thread-safe, crash-resilient, append-only binary log engine in C with durable writes, checksum-based recovery, and O(1) indexed reads.
  • codenotes - Browser-based coding environment with a sandboxed JS runtime and markdown editor.
  • portzap - CLI tool for managing and killing processes on specific ports.
  • imalloc - Custom memory allocator in C. First-fit free list, coalescing, mmap support.
  • ishell - Unix shell from scratch. Pipelines, I/O redirection, background processes.

Stack

Languages: C, Go, JavaScript, TypeScript, Python
Backend: Node.js, Express, Django, Go
Frontend: React, Next.js
Databases: PostgreSQL, MongoDB, Redis
Other: Docker, Linux, WebSockets

Outside of Code

Reading, long walks, music.

Portfolio · LinkedIn · Email

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  1. create-x-litecreate-x-litePublic

    A modern, interactive CLI for scaffolding production-ready Express.js projects. Inspired by create-vite.

    JavaScript 11

  2. walruswalrusPublic

    WALRUS A thread-safe, crash-resilient, append-only binary log engine in C with durable writes, checksum-based recovery, and O(1) indexed reads.

    C

  3. research-suiteresearch-suitePublic

    General-purpose research workflow for Claude Code and other Coding Agents. from research ideation and literature review to data provenance, rigorous analysis, drafting, LaTeX, fact-checking, and re…

    Python

  4. nodechess-game-servernodechess-game-serverPublic

    Real-time multiplayer chess backend — WebSockets, Redis for live game state & matchmaking, PostgreSQL for persistence, Docker.

    JavaScript

  5. imallocimallocPublic

    A custom memory allocator in C — first-fit free list, block splitting, coalescing, and mmap support.

    C

  6. ishellishellPublic

    Unix shell built from scratch in C — REPL, pipelines, I/O redirection, background processes, quote parsing. POSIX only.

    C