shipped2026

Arcane Bond ↗

A local two-player pixel action game built around asymmetric spell-casting, shared progression, and deterministic browser gameplay.

shipped2026

OpenDoc ↗

A team-built real-time collaborative editor; Percy owned backend, authentication, permissions, sharing, and developer tooling, with Yjs/WebSocket sync and an AI writing workflow streamed over SSE.

Role · Backend, authentication, permissions, sharing, and developer tooling

  • Backend architecture
  • Authentication and permissions
  • Real-time collaboration infrastructure
  • AI writing workflow integration
active2026

BNNX ↗

Small trained neural networks compiled into pure contracts on BNB Chain (testnet). Anyone can call one with a free read-only call and check its answer against a reference program, integer for integer. The page lets you try 14 deployed models, including networks imported from Brevitas.

shipped2026

CreditSense ↗

A reproducible tabular-ML pipeline for jointly predicting credit-risk class and loan interest rate, with cross-validation, feature engineering, Optuna tuning, and model registries.

active2026

ModCraft ↗

A product for making game mod creation more approachable through practical tooling, product design, and an end-to-end web platform.

Role · CPO and primary full-stack engineer

  • Product
  • Full-stack engineering
  • QA
  • DevOps
shipped2026

MuPlaytime ↗

A bilingual, timezone-aware coordination board for comparing friends' availability, proposing game sessions, voting on options, and joining shared rooms without accounts.

active2026

Scuola di Atene ↗

A student-made T-shirt interest page with an interactive 3D preview, real sample photographs, and email signup to gauge demand. No payment is collected.

shipped2026

Twelve Bars ↗

A browser-based virtual rhythm section for jazz and blues practice, with controllable drums, bass, chords, grooves, keys, tempo, and instrument call-and-response.

active2026

Zelender · 庭 ↗

An interactive Japanese koi garden for the browser and Chrome new tabs, pairing fish feeding and four weather soundscapes with a calendar and locally stored to-dos.