Hiroshi OS

Wattpad-style storytelling: web + Kotlin Android + API

Cited go/no-go eligibility, compliance matrix, risks and pre-bid queries for Indian government tender packs. Multi-agent RAG (FastAPI, LangGraph, hybrid retrieval) with a first-class eval harness.

Signed, retried webhook delivery with DLQ (Go + Postgres)

B+tree storage engine with MVCC snapshot isolation, WAL recovery and crash/isolation tests (Rust)

L7 load balancer: P2C/EWMA, health checks, outlier ejection, retry budgets (Go)

Search engine from scratch: compressed inverted index, BM25, Block-Max WAND, segments (Java 21)

Job queue + cron with leases and fencing tokens; chaos-tested effectively-once effects (Go + Postgres)

S3-lite object store with Reed-Solomon erasure coding, scrubbing and repair; chaos-tested (Go)

A GPU-native multi-agent orchestration cockpit. Rendered on the GPU with GPUIX, no Electron and no web view.