Raby Whyte

Lightweight geofencing and fast point-in-polygon tests with a spatial grid index that prunes candidates, enabling efficient "which zones contain this point" queries across many polygons.

#web, #performance-optimization, #automation

Typed, safe expression language for evaluating guarded predicates: compile-once, tree-walking evaluator with lexer/parser/type-checker, preventing code injection, precise source-linked errors, REPL/CLI and cacheable expressions.

#web, #text, #sdk, #performance-optimization, #parsing, #command-line-interface