06 / ENGINEERING NOTES
Engineering Notes
Long-form notes on AI, engineering systems, and organizational evolution.
From AST to Bytecode: Making HHY's Default Engine 2.7× Faster
How I built HHY v1.3.10's Bytecode VM—from the AST semantic baseline, Compiler, and Verifier to Stream Kernels, profiling, cache governance, and a six-runtime performance comparison.
Entanglement, Black Holes, and Qi: Three Conjectures About the Universe and Us
From quantum entanglement and Webb's early-universe surprises to black-hole cosmology, computational reality, and why I believe qi names a genuine dimension of lived experience.
Do Not Build Only One Career: Opportunity Windows, Second Curves, and Continuous Evolution
A career should capture value when personal strengths and market tailwinds overlap, build a second curve before the first one breaks, and preserve choice through continuous learning.
Building a Multi-API Data Collector: Three Sources, One Incremental Table
How I used HHY to collect OpenAlex, Crossref, and GitHub pages concurrently, normalize semantics, isolate failures, and incrementally merge CSV.
Building Asset Governance: Audit Before Effects
How I used HHY to detect risky assets, emit a reviewable action plan, and apply allow-listed remediation through runtime-native dry-run semantics.
Building DataFlow ETL: CSV, JSON, and HTTP in One HHY Flow
How I built a complete HHY pipeline for CSV and JSON ingestion, concurrent profile enrichment, grouped reporting, and atomic dual output.
Building FlowGuard: A CI-Ready Quality Gate in HHY
How I composed filesystem checks, credential scanning, quality commands, HTTP health checks, and atomic reports into a verifiable HHY workflow.
Building HHY Collector Framework Without Starting from a Scrapy Clone
How I combined HHY HTTP, Streams, bounded concurrency, and the official HTML extension into an auditable collector for APIs and static documents.
Optimizing HHY's AST Interpreter Without Switching to Bytecode
How HHY Language v1.1.1 reduced function-call overhead with a resolver, static slots, lightweight call frames, identifier caches, and escape-safe reuse—without changing language semantics.
Researching Hong Kong Film Companies with HHY and MediaWiki
A reproducible HHY research flow for candidate search, concurrent page details, semantic filtering, provenance, and deterministic regression tests.