A wa-sqlite-style suite of timed SQL batteries across four PGlite storage backends — idb,
opfs-ahp, the constant-four-handle opfs-repacked (per-cell dedicated worker), and
opfs-repacked-sw: the identical engine hosted directly in a SharedWorker, runnable only where the
engine grants sync-access handles there (WebKit) — the side-by-side hosting comparison. Durability is relaxed by
default; flip the strict toggle to measure per-commit flush cost. Open this page on a real device (iPhone/Safari)
to gather the per-engine numbers — nothing here needs a network.