-10B981?style=for-the-badge){kind=icon}
I build zero-regression production fixes, real-time streaming backends, computational geometry solvers, and cryptographic state machines across open-source and commercial repositories (50+ live Pull Requests across YC-backed AI hardware, CAD/EDA routers, and ZK/Solana protocols).
| Product | Stack | Live Download & Release |
|---|---|---|
| 1. Deep-Tech Freelance, Bounty & Crypto FIFO/LIFO Tax OS (Pro v1.0) 5-Sheet Obsidian Dark-Mode Excel Workbook ( .xlsx) + Zero-Dependency Python 3 CSV Deduplication & FIFO/LIFO Capital Gains CLI (reconcile_cli.py) + Pytest Suite |
Python 3 · Excel · SHA-256 |
👉 Buy on Ko-fi ($5) · GitHub Release v1.0.0 |
| 2. Production FastAPI + WebSocket Real-Time Audio/LLM Streaming & Task Supervisor Kit (v1.0) Fault-isolated TaskSupervisor (bounded concurrency, backoff retry, dead-letter ring buffer), WebSocketSessionGateway (drop_oldest/reject backpressure), and WebhookDeduplicator + Pytest Suite |
Python 3 · FastAPI · Asyncio |
👉 Ko-fi Shop ($5) · GitHub Release v1.0.0 |
| 3. Rust, Solana (Anchor/BPF) & ZK-SNARK (Groth16/R1CS) Security Audit Scanner & 50-Point Checklist Kit (v1.0) Automated static vulnerability analyzer ( solana_zk_scanner.py) detecting missing signers (SOL-001), i64::MIN.abs() overflow (SOL-002), non-canonical PDAs (SOL-003), unconstrained R1CS witnesses (ZK-001), plus 50-Point Audit Checklist |
Rust · Solana · ZK-SNARK |
👉 Ko-fi Shop ($5) · GitHub Release v1.0.0 |
| 4. TypeScript 2D/3D Spatial Indexing, Capsule DRC & Multilayer A Pathfinding Engine (v1.0)* Zero-dependency SpatialHashGrid3D<T>, exact capsule/segment clearance & Liang-Barsky clipping (collision.ts), MultilayerAStarRouter with automatic Via jumps, interactive SVG playground (demo_interactive.html), and Bun test suite |
TypeScript · A* · CAD/EDA |
👉 Ko-fi Shop ($5) · GitHub Release v1.0.0 |
📚 Featured Technical Writing & Engineering Guides (deeptech-engineering-guides)
Every article includes 100% deterministic, unit-tested production code:
- How to Fix Memory Leaks and Orphaned Background Tasks in FastAPI WebSockets Using Bounded Queues and a TaskSupervisor (
Python 3.11+·FastAPI·Asyncio) - 5 Critical Security Vulnerabilities in Solana Anchor Programs and Groth16 ZK-SNARK Circuits (And How to Catch Them Automatically) (
Rust·Solana·ZK-SNARK) - Zero-Dependency Multi-Source CSV Deduplication and Deterministic FIFO/LIFO Crypto Tax Accounting in Pure Python (
Python 3·Decimal·SHA-256)
Need a critical bug squashed today, an anti-bot scraper built, or developer documentation with 100% compiling code samples?
- ⚡ Emergency Bug Fix, Flaky CI Rescue & Web Scraping ($15 – $65, 2–12h Delivery)
- Fixing FastAPI/Asyncio WebSocket task leaks, Docker/CI failures, Playwright/Python
httpxanti-bot scrapers, or multi-source CSV/Excel automation.
- Fixing FastAPI/Asyncio WebSocket task leaks, Docker/CI failures, Playwright/Python
- ✍️ Developer Documentation, SDK Quickstarts & Bite-Sized Tech Tutorials ($20 – $120, 24h Delivery)
- README & API Reference Overhaul ($20 – $45): Mermaid architecture diagrams, CLI quickstarts, and tested Python/TS/Rust SDK snippets.
- Code-First Engineering Tutorial (800 – 1,500 words + Runnable Repo, $50 – $120): Deep-dive tutorials on Python Asyncio concurrency, WebSockets, 2D/3D spatial algorithms, or Rust/Solana security.
- 🛡️ Smart Contract / Backend Pre-Audit & Custom Algorithmic Solvers ($75 – $150, 24–48h Delivery)
- Static + manual review of Solana Anchor programs, Groth16/R1CS circuits, or TypeScript/Python backend pipelines with deterministic regression tests.
- High-Concurrency Python & FastAPI (
BasedHardware/omi, 13.7k+ ⭐): Fixed WebSocket listen-session task leaks, session file/thumbnail cleanup, and fault-isolated webhook fanout (PR #21813,PR #21810,PR #21825,PR #21853). - 2D/3D Computational Geometry & EDA Autorouting (
tscircuit): Built 3D spatial obstacle solvers, dogbone via fanout, KiCad 9 netlist compilers, and multi-layer A* routing (PR #4675,PR #4674,PR #3104,PR #655,PR #657). - Zero-Knowledge Cryptography & Rust Consensus Bridges (
paraloom-labs/paraloom-core): Fixed Groth16 R1CS soundness bugs, Native/SPL co-sign asset substitution, and equivocator ban enforcement (PR #942,PR #945,PR #947,PR #962).