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Marc-André Bombeck
45da6c3c7d
The bundled Skia x64 build (document thumbnails, scanned-PDF rasterization) uses AVX2 instructions; on an x86-64 host without them — Celeron/Atom-class NAS CPUs, pre-2013 Xeons, VMs masking CPU flags — the first canvas call is an uncatchable SIGILL that kills the process and crash-loops the container (live incident: a Synology DS1520+, exit 132 ~18 s after every boot, reported with kernel traps and the correct root cause in hand). The renderer is now gated on a one-time CPU-feature check before the module ever loads: linux/x64 requires the avx2 cpuinfo flag; arm64 and non-Linux are unaffected; unreadable cpuinfo fails open. Behind a closed gate, thumbnail generation and PDF rasterization take their existing fail-soft paths (vault shows type icons; PDFs read as text) and the boot-time thumbnail backfill skips enqueueing. NATIVE_CANVAS=off|on overrides detection, documented in the env example and whitelisted in compose.
src/
Application source. HealthLog is a Next.js 16 App Router project (output: "standalone", React 19, TypeScript strict). The path alias @/* resolves to this directory. Everything a request touches lives under here; the layout below follows the request flow rather than alphabetical order.
Request flow
client → src/proxy.ts → src/app/<route>/route.ts → src/lib/api-handler.ts → handler body → src/lib/api-response.ts → client
proxy.ts— the HTTP edge (Next.js 16's renamedmiddleware). Public-path allowlist, demo-mode mutation block, server-side onboarding redirect, worker-only refusal,x-request-id+ CSP nonce generation, every security header.app/— App Router pages (RSC by default) and API routes. Every API route wraps its handler inapiHandler. Seeapp/README.md.lib/— the server/runtime toolkit:apiHandler, auth, crypto, rollups, AI, notifications, pg-boss jobs, integrations, rate limiting. Seelib/README.md.components/— React components (shadcn/ui new-york, kebab-case files). Seecomponents/README.md.
Other directories
hooks/— shared React hooks (use-prefix, kebab-case).types/— shared TypeScript declarations.generated/prisma/— the generated Prisma client (do not edit; regenerated byprisma generate). Imported as@/generated/prisma.instrumentation.ts— Next.js startup hook; boots the pg-boss worker registry and boot-time backfill queues.__tests__/— cross-cutting unit tests; most tests live in__tests__/folders next to the code they cover.
Conventions
See ../CLAUDE.md for the full set. The load-bearing ones: RSC by default ("use client" only when a hook/state/browser API needs it); every API route wraps apiHandler and parses its body with Zod safeParse; userId is always narrowed from session or Bearer, never accepted as a body field; TanStack Query keys come only from src/lib/query-keys/; outbound HTTP goes through src/lib/safe-fetch.ts.