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// systems archive

A build log of systems, agents, and real-time products.

Each entry is framed around the engineering problem: architecture, proof, and ownership.
PlaySync

SYNC-ROOM / 2025

PlaySync

personal

A real-time music platform where users join rooms and keep playback synchronized across clients with low drift.

architecture

Turborepo with Next.js, Node.js, Socket.io, Redis pub/sub, PostgreSQL, Prisma, and NextAuth.

proof

Served 1,000+ registered users and reduced sync drift from 120ms to around 10ms at 5K+ messages/sec.

role

Designed the real-time architecture, data model, authentication, and Redis-backed synchronization path.

TypeScriptTurborepoNext.jsNode.jsRedisNextAuthPostgreSQLPrismaSocket.io
sourcediscuss system
Nirmaan — AI App Builder

NIRMAAN / 2025

Nirmaan — AI App Builder

personal

A Lovable-style AI app builder that generates full-stack React applications from natural language prompts, with streaming code generation and isolated per-user workspaces.

architecture

LLM-driven code generation pipeline on Node.js + TypeScript, streaming file diffs to the browser, PostgreSQL for persistent project state, and per-project sandboxed containers on Kubernetes.

proof

Generates deployable full-stack React apps from a single prompt while keeping each user workspace fully isolated in its own Kubernetes container.

role

Architected the code generation pipeline, streaming layer, session persistence, and Kubernetes workspace isolation from scratch.

TypeScriptNode.jsReact.jsPostgreSQLKubernetes
sourcediscuss system
AI Incident Investigator

INCIDENT-AI / 2025

AI Incident Investigator

personal

An autonomous investigation agent that reads application errors, retrieves historical context, reasons through likely causes, and proposes code-level fixes.

architecture

Next.js dashboard, Node.js agent service, LangGraph.js workflow, ChromaDB retrieval layer, and AWS deployment path.

proof

Reached 80% correct root-cause identification on 10 seeded production bugs with visible reasoning traces.

role

Built the agent pipeline, retrieval layer, dashboard, seeded bug evaluations, and deployment surface.

TypeScriptNode.jsLangGraph.jsChromaDBNext.jsAWS
sourcediscuss system
Koshitsu

PRIVATE-CHAT / 2025

Koshitsu

personal

A privacy-first real-time chat platform with encrypted messaging, persistent group chats, and ephemeral private rooms.

architecture

React interface, persistent storage, Redis-backed real-time state, Dockerized runtime, and room-level messaging flows.

proof

Combines persistent group chats with ephemeral private rooms while keeping the product model focused on privacy.

role

Built the product flow, real-time messaging model, and containerized application runtime.

ReactPostgreSQLRedisDocker
sourcediscuss system