AeroPlay: A Flight-Mode Game Hub

AeroPlay is a mobile-first offline game hub designed to work in airplane mode with local assets and saved progress.

June 3, 2026 · 2 min · 304 words · Jack Yu

Bedrock Lab: A Behavior Pack as a Small Rules Sandbox

Bedrock Lab is a small Minecraft Bedrock behavior pack for testing gameplay rule changes without experimental toggles.

June 2, 2026 · 2 min · 304 words · Jack Yu

tegdb-server: Putting a PostgreSQL-Compatible Protocol in Front of TegDB

tegdb-server explores how a small embedded database can be exposed through a PostgreSQL-compatible server surface.

June 1, 2026 · 2 min · 327 words · Jack Yu

cta-guard: Risk Controls Before Trading Logic

cta-guard is a private trading-system project where the most publishable lesson is risk control, not strategy details.

May 31, 2026 · 2 min · 326 words · Jack Yu

scale-kv: A Storage Experiment About Complexity

scale-kv is a Rust storage experiment that explores transactional KV, page structures, quorum behavior, and distributed-system complexity.

May 30, 2026 · 2 min · 337 words · Jack Yu

QuackLake: A DuckDB-WASM Analytics Prototype

QuackLake explores a WASM-first analytics shape with DuckDB-WASM, object storage, a range gateway, and a small control plane.

May 29, 2026 · 2 min · 302 words · Jack Yu

ob-skills: Packaging OceanBase Knowledge as Agent Skills

ob-skills is a small collection of OceanBase-focused agent skills for architecture guidance, DDL review, and validation.

May 28, 2026 · 2 min · 354 words · Jack Yu

TegDB: Notes from Building a Small Embedded Database

TegDB is a small embedded database experiment focused on simplicity, reliability, WAL recovery, and a SQL-like interface.

May 27, 2026 · 2 min · 323 words · Jack Yu

OB Sizer: Turning Migration Sizing into a Browser Tool

OB Sizer is a frontend-only capacity estimator for OceanBase migration conversations.

May 24, 2026 · 2 min · 331 words · Jack Yu

TapSurge: An iPad Tap-Speed Tool Built for Competition Use

TapSurge is an offline-first iPad tap-speed test that records multi-finger input with audit-friendly timing.

May 24, 2026 · 2 min · 369 words · Jack Yu