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hellpuffyt/README.md
hellpuff: Building things that should exist. Prabesh Sharma, software engineer.

Software engineer in Nepal. I build products for real businesses, and the systems underneath them from scratch.

hellpuff.dev ↗  ·  Work  ·  CV


01 Toolkit TypeScript, Python, Rust, Go, React, Next.js, Tailwind, Node.js, NestJS, FastAPI, Postgres, Redis, Docker, GitHub Actions

What each one is based on → SKILLS.md


02 Open source

Real screenshots of each project running locally on bundled or synthetic data.

ArchitectFlow: Zoomed ArchitectFlow canvas showing labelled service connections
ArchitectFlow
Versioned system-design workspace · experimental
Case study  ·  Source 		Statuscraft: statuscraft status page, dark theme, with uptime bars for four services
Statuscraft
Honest status pages · in development
Case study  ·  Source
RepoGraph: repograph force-directed dependency graph of its own repository
RepoGraph
Codebase architecture map · in development
Case study  ·  Source 		Waterfall Lens: waterfall-lens report with summary metrics and first-paint explanation
Waterfall Lens
Page-load forensics · in development
Case study  ·  Source
ModelHarbor: ModelHarbor dashboard with provider health cards, routing panel and cost totals
ModelHarbor
LLM provider control center · in development
Case study  ·  Source 		Emberline: Ember Run pixel platformer level rendered by the Emberline engine
Emberline
Rewindable 2D game engine · research
Case study  ·  Source

03 Products

Private codebases. Each row opens the public site or the case study.

DataJewellers: Jewellery ERP and billing for Nepal. Commercial.
DataRestro: Restaurant POS, kitchen display and stock. Working build.
DataUdaan: Flights, hotels and buses behind one supplier layer. In development.
DataAccommodation: Hotel PMS, front desk, booking engine and guest portal. Working build.
DataItemize: Configurable inventory on an immutable ledger. Working build.
TimeTravel: B2B airline ticketing for travel agencies. Commercial.
Sita Shree Jewellers: Storefront and billing ERP for a client jeweller. Deployed.


04 Systems

Open source unless the row says case study.

Serverless Log Monitoring & Threat Alert System: Rule-based detection, brute-force windows, webhook alerts. Prototype.
eBPF-KernelTrace-MCP: Kernel telemetry for AI assistants. Rust.
Titan-HFT: Deterministic matching engine. Rust.
ChaosProxy-L7: Layer-7 fault-injection proxy. Rust.
bellows-compiler: Optimizing compiler with x86-64 codegen. Rust.
tesseradb: Temporal SQL database, every row version kept. Rust.
halyard-vm: Gas-metered sandbox VM for untrusted automation. Rust.
tarn-lang: A small language for agent workflows. Go.
spindrift: HTTP/1.1 server, from the RFC up. Go.
modelharbor: LLM provider control center. TypeScript.

Public code by language, measured from GitHub's language statistics for public repositories.

Every public repository, grouped → PROJECTS.md


05 Now
  • Multi-tenant SaaS that stays simple as it grows
  • Authorization at the API boundary, never in the browser
  • Agents that touch real systems, with policy and replay
  • Interfaces that make heavy operations feel calm

The rest of the work lives at hellpuff.dev

brand

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