The dev server got slower the longer it ran. Measured on the example app: 30 .wrn edits grew RSS from 117 MB to 137 MB and never gave it back, while 30 CSS edits cost nothing -- so the leak is exactly one retained module identity per rebuild, not caches or file handles. That is inherent to reloading a module in-process. Bun caches modules by path, so a rebuild has to be given a new identity to be picked up at all, and Bun has no API to unload the old one. At roughly 0.66 MB a rebuild, a long editing session is several hundred megabytes of garbage that cannot be collected. The process now recycles itself past a rebuild threshold, exiting with the RESTART_EXIT_CODE the CLI supervisor already respawns on; browsers reconnect because the HMR client already retries. It waits for a quiet period first so a live request is never cut off, and the threshold (300 rebuilds, about 200 MB) sits well above a normal session. Set WRNEXUS_DEV_RECYCLE_AFTER to tune it, or 0 to switch it off. Also bounds browserArtifactPaths and islandArtifactPaths, which are keyed by content hash and so gained an entry per rebuild that was never read again. Small next to the module leak, but unbounded is unbounded. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
WRNexusJS
WRNexusJS is a compiler-driven, SSR-first, Bun-native full-stack framework for building secure, fast, maintainable applications with .wrn pages, layouts, components, stores, server functions, client functions, typed outputs, APIs, validation, authentication, realtime rooms, and production tooling.
Current framework version: 0.8.0
Core principles
- Secure by default with CSP, CSRF, safe serialization, URL policies, request limits, SSRF protection, secret scanning, and release gates.
- Performance-first SSR with zero framework JavaScript for static pages and selective hydration for interactive pages.
- One compiler-understood
.wrnmodel for markup, props, state, outputs, and runtime-specific functions. - Backward-compatible package upgrades with migrations, generated references, validation scripts, and private publishing controls.
- Package kits that give developers public helpers, package tests, documentation, and complete UI blocks where a package has a developer-facing interface.
Quick start
bun install
bun run validate:0.8
bun run check
bun run dev
Create or upgrade a project:
bunx @wrnexus/cli@0.8.0 create my-app
bunx @wrnexus/cli@0.8.0 update --version=0.8.0 --report
Package kits in 0.8
All 39 framework packages expose a documented helper/API surface and package tests. UI-facing packages additionally own complete .wrn blocks composed from @wrnexus/ui:
@wrnexus/auth— complete account, sign-in, sign-up, MFA, passkey, recovery, device, provider, and security blocks.@wrnexus/captcha— challenge, field, status, extraction, verification, response, and context helpers.@wrnexus/i18n— recursive locale loading, fallback chains, request resolution, SSR/browser translations, language controls, and formatters.@wrnexus/image— responsive picture plans, secure loaders, placeholders, preload hints, audits, and image blocks.@wrnexus/realtime— typed messages, room connections, presence, typing, metadata, composer, status, and message blocks.@wrnexus/uploader— upload attributes, result validation, formatting, dropzone, and status blocks.@wrnexus/validation— parse/throw helpers, consistent error responses, summaries, and field errors.@wrnexus/ui— the complete shared design-system component catalog.
Infrastructure packages remain helper/API-only so database, encryption, security, compiler, server, and build packages do not pull browser UI into production server code.
Security note for encrypted HTTP bodies
@wrnexus/encryption supports authenticated application-layer request and response envelopes with method, path, request-ID, timestamp, expiry, key-rotation, body-size, and replay binding.
This feature does not replace HTTPS. It is appropriate for service-to-service calls, native/mobile clients, controlled agents, or selected fields with server-managed keys. It cannot hide data from an end user when a browser receives the decryption key.
Validation commands
bun run audit:packages
bun run test:package-kits
bun run validate:0.8
bun run security:framework
bun run sbom
bun run benchmark:framework
bun run validate:staging
bun run check