perf(wasix)!: unify direct runtime fast paths

[f0rr0]

Summary

• make /bin/postgres the sole portable backend and remove the historical /bin/oliphaunt/stdio transport paths
• use one memory-backed PGWire bridge for TypeScript direct, worker, and Rust hosts, with bounded stderr and a fast single-backend clock path
• drive native extension load order generically and support large exception-handling side modules such as PostGIS in browser workers
• keep the runtime, package contracts, CI canaries, and maintainer documentation aligned with the new architecture

Why

The old runtime crossed generic WASIX syscall and stdio layers on hot clock and PGWire paths, retained duplicate transport implementations, and depended on a historical executable alias. The browser Wasmer parser also did not recognize exception reference types required by the PostGIS side module. These costs and gaps prevented native-like naming and consistent direct-runtime behavior across browser, JavaScript server runtimes, and Rust.

This clean-break change removes those duplicate paths instead of preserving compatibility shims. The portable backend remains PostgreSQL-shaped while each host uses the same bridge contract.

Validation

• full release-readiness check
• workflow policy gate (actionlint, zizmor, workflow security, planner and bootstrap tests)
• affected SDK contract and package gates (25 Moon tasks, including 267 Rust nextest tests)
• TypeScript unit suite (114 tests) and Rust runtime tests (94 tests)
• Node, Bun, and Deno direct/worker runtime smoke tests
• real Chromium PostGIS worker smoke test
• strict committed-asset, WASIX ABI, patch-stack, source-spine, and Linux AOT/package checks
• Rust 128 x 4 KiB PGWire stress test
• formatting and whitespace checks

Base

Targets f0rr0/wasix-sdk-clean-break. The branch was fetched again immediately before push and is exactly one commit ahead of remote base 9e73fb6f6ee00b82e465cfbcf6840ab377c499b6.

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
oliphaunt-docs	Ready	Preview	Aug 18, 2026 10:55am