Projects

Built, shipped,
running in production.

A selection of live tools and applications — from cryptographic infrastructure to native iOS experiences.

Infrastructure Platform

Multichain Transaction Engine

A serverless transaction lifecycle engine spanning 64 blockchains across 4 chain families — deployed as family-scoped AWS Lambdas behind a single CloudFront distribution, with a data-driven adapter registry, pluggable signing backends, and an interactive browser terminal.

  • Data-driven chain adapters across EVM (23), Cosmos (20), Substrate (10), and standalone (11) networks with auto-registration and factory-pattern onboarding
  • Full transaction lifecycle — create, digest, sign, and broadcast — with per-chain parameter schemas and explorer link resolution
  • Pluggable signing backends including Fireblocks, Azure HSM, YubiHSM, and offline signing
  • Interactive terminal UI with prefix autocomplete, workflow suggestions, live API request logging, and chain status indicators
  • Staking operations across all families — delegate, undelegate, redelegate, claim rewards, and stake account management
  • Family-scoped Lambda isolation for independent scaling, smaller cold starts, and per-family fault boundaries
  • Single CloudFront distribution fronting S3 static assets and API Gateway with CloudFront Functions for SPA routing and API path rewriting
  • ERC-20 token transfers, AVAX cross-chain atomics (C-chain, P-chain), and contract-based staking with gas estimation
Python FastAPI TypeScript Next.js Tailwind CSS Terraform AWS Lambda
Multichain Transaction Engine — Interactive Terminal
In Development

tranquillo.io custody

A self-hosted cryptographic signing and key management server — built for production environments, split-seed HD key derivation, and native PKCS#11 hardware security module integration.

  • Client registry with per-tenant HSM tokens, auto-provisioned PKCS#11 slots, and encrypted credential storage
  • BIP-32 HD key derivation across 15+ assets — seeds are never stored, reconstructed on demand via HMAC-SHA512 split-seed architecture
  • Challenge-response approval workflows — admins create derivation or recovery requests, mobile device holders approve with client entropy
  • HSM slot management with token initialization, PIN rotation, mechanism inspection, and key lifecycle operations
  • Append-only audit logging for all mutating operations with server-side filtering, pagination, and free-text search
  • Multi-user JWT auth with Argon2-based password hashing and role-based access control
Rust PKCS#11 BIP-32 HMAC-SHA512 HSM JWT Argon2
tranquillo.io — Dashboard tranquillo.io — Mobile Splash tranquillo.io — Challenge Approval
In Development

Fireblocks Console

A self-hosted operations dashboard for the Fireblocks digital asset custody platform — built as a single deployable binary with an embedded frontend, AES-256-GCM encrypted credential storage, and real-time transaction streaming.

  • Vault and wallet management with asset allocation, deposit addresses, and UTXO consolidation
  • Multi-step transfers with live fee estimation, address validation, and approval workflows
  • Raw message and EIP-712 typed data signing with real-time SSE status polling
  • Staking operations across multiple chains — stake, unstake, withdraw, and claim rewards
  • AUM dashboard with portfolio overview, recent transactions, and pending approval queue
  • Gas station monitoring, webhook event history, and append-only audit logging
  • Multi-user auth with Argon2id password hashing and cookie-based session management
  • Dark mode, CSV/JSON data export, and searchable asset catalog (1,000+ supported assets)
Rust Axum TypeScript Tailwind CSS Terraform AWS Fargate
Fireblocks Console — Staking Positions Fireblocks Console — Transaction History Fireblocks Console — AUM Dashboard
Cryptography Tool

Wallet Utility

A web-based cryptographic toolkit for generating key pairs, deriving public keys, signing transaction digests, and generating wallet addresses across 12+ blockchain networks — supporting both ECDSA and EdDSA elliptic curves. Also available as an MCP Server, enabling natural-language interaction with all cryptographic operations via LLM-driven agents and chat interfaces.

  • ECDSA & EdDSA curve support with key pair generation and public key derivation
  • Transaction digest signing with recovery ID for blockchain compatibility
  • Wallet address generation for Ethereum, Bitcoin, Cosmos, Litecoin, Dogecoin, Celestia, Injective, Sei, and more
  • API-driven architecture with configurable backend endpoints
  • MCP Server implementation enabling natural-language usage through LLM agents, Claude, and OpenAI
ECDSA EdDSA secp256k1 ed25519 MCP Server Rust AWS Serverless
Launch Wallet Utility →
Wallet Utility — Sign Digest Wallet Utility — Key Pairs Wallet Utility — Wallet Generation
iOS App — App Store

PocketStats

A native iOS application for pool and billiards players to track scores, manage tournaments, and analyse performance — featuring on-device AI analytics, iCloud sync, and multiple game modes.

  • Four game modes: team games, race, single-elimination tournaments, and round robin
  • On-device ML for match summaries and performance pattern detection
  • iCloud sync across iPhone and iPad with CSV, JSON, and PDF export
  • Live Activity widgets, AirDrop sharing, and QR code result sharing
Swift SwiftUI Core ML iCloud iOS 16.1+
View PocketStats →
PocketStats
Pool & Billiards Tracker
Available on the App Store
Web Application

Snooker League Manager

A full-stack web application for organising and managing snooker leagues — handling player registration, match scheduling, live scoring, and league standings with automated table generation.

  • League and tournament creation with configurable formats
  • Player profiles, head-to-head records, and ranking history
  • Live match scoring and results tracking
  • Automated league table generation and standings
Python AWS Serverless DynamoDB
View League Manager →
League Manager
Season 2025/26
Player A74
Player B63
Player C51
Telegram Bot

Poker Analytics Bot

A Telegram-based poker analytics platform that tracks game sessions, calculates player rankings, and delivers advanced statistical analysis — including streaks, variance profiling, seasonal patterns, head-to-head records, and risk assessment across years of historical data.

  • Real-time game tracking with yearly and all-time rankings backed by MongoDB
  • Eight statistical analysis types: streaks, variance, seasonal patterns, head-to-head, monthly trends, risk profiling, and performance tiering
  • Interactive Telegram interface with inline keyboard navigation and dynamic menus
  • Data visualisation with charting for trend analysis
Python MongoDB Telegram Bot Pandas Plotly Async
🃏
Game Night Analytics
Live via Telegram
Sessions tracked 200+
Win streak 5 games
Best session +£142
Worst session -£87
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