HTTP cross-origin embedder policy(COEP) middleware

OPFS storage backend for granth (opfs-sahpool VFS, no COOP/COEP required).

Sandboxed bash interpreter for the browser (WebAssembly). Single-threaded — no SharedArrayBuffer, no COOP/COEP headers.

Ansatz geometric constraint solver core (wasm, Node): structured diagnostics-first, bit-reproducible f64, no SharedArrayBuffer/COOP-COEP

Vite plugin for Miden dApps: WASM dedup, COOP/COEP headers and a gRPC-web proxy. Run `npm create @miden-sdk@latest` to set up agent guidance.

Secure HTTP headers & a typed Content-Security-Policy builder — HSTS, CSP nonces/hashes, Permissions-Policy, COOP/COEP/CORP, Reporting-Endpoints, report-only + strict/API presets. Framework-agnostic + Next.js. Zero-dependency, isomorphic.

Batteries-included package: @monaco-neovim-wasm/lib + asyncify nvim.wasm + runtime (postMessage input; no COOP/COEP).

Express middleware to collect Reporting API reports. Supports CSP, COOP, COEP, Permissions-Policy, Document-Policy, Network Error Logging, crash, deprecation and intervention reports, plus legacy CSP report-uri

Playwright harness that bundles your code, serves it under a COOP/COEP-toggleable server, drives it in a real browser, and returns structured results/timings — for testing real browser-storage persistence (IndexedDB/OPFS), cross-origin isolation, Workers,

Framework-agnostic defensive HTTP layer for Node.js 22+ — CSRF, sliding/fixed/token-bucket/leaky-bucket rate limiting (memory / Redis / custom stores, plus withBan escalation), helmet-style headers (CSP, HSTS, COOP/COEP/CORP, Referrer, Permissions), CORS,

MotelyJAML — Balatro seed search engine (pthread WASM). Requires COOP/COEP + crossOriginIsolated for browser threading.

Sandboxed bash interpreter for the browser (WebAssembly). Single-threaded — no SharedArrayBuffer, no COOP/COEP headers.

Single-threaded WASI WebAssembly binding for oxc-coverage-instrument.

Prover/verifier library for barretenberg. It bundles support for the following:

Cross-Origin Isolation through a service worker

Framework-agnostic, client-side Python execution engine — Pyodide in a Web Worker, AC/WA/RE/TLE verdicts, no COOP/COEP required.

Istanbul-compatible JavaScript/TypeScript coverage instrumentation using the Oxc AST.

Browser-friendly Z3 SMT solver: single-threaded WASM ES module, no SharedArrayBuffer / COOP / COEP required, synchronous expression building with non-blocking cancellable solving in a plain worker

VitePress component for a client-side Python coding playground — Pyodide in a Web Worker, AC/WA/RE/TLE verdicts, a bundled random-input generator, and a pluggable editor. No COOP/COEP required.

WebAssembly media player using Ogg/Vorbis/Theora/Opus/WebM libs compiled with Emscripten