- Published on
Article · Measurement
Offline Evals Predict; Online Signals Correct
A measurement architecture that joins repeatable offline evals with production outcomes, safety signals, canaries, and privacy-aware review.
Writing archive
Everything published under Writing, newest first. Each entry is labelled as part of an investigation, an article or reference. Short engineering notes have their own archive.
- Published on
Article · Derived state
Why updated_at Is a Dangerous Synchronization Cursor
Concrete simulations of the records a timestamp cursor can miss, plus safer tuple cursors, overlap windows, change logs, and reconciliation.- Published on
Article · Derived state
rustc's Query System: Why the Compiler Computes Facts on Demand
A practical model of rustc queries, providers, memoization, dependency tracking, cycles, and red-green incremental reuse.- Published on
Article · Derived state
Conflict Resolution for Bidirectional Sync Beyond Last-Write-Wins
A practical comparison of conflict policies that preserve business intention when two synchronized systems edit the same entity.- Published on
Article · Through the layers
Aho–Corasick DFA or NFA: Which One Should I Use in Rust?
Rust's Aho–Corasick crate can build three different automata. I compare their construction cost, memory layout, search behavior, and the evidence needed before forcing one.