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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.
docs/ — internal reference + operator playbooks
The user-facing documentation lives at https://docs.healthlog.dev — that's the canonical surface for self-hosting guides, integration walkthroughs, AI-provider setup, and the doctor-report workflow.
The files in this directory are the internal operator playbooks, audit notes, and machine-readable specs that ship alongside the source:
api/— the OpenAPI 3.1 spec for the native-client subset (iOS DTO codegen target). Seeapi/README.mdfor the preview commands. Also home to the MCP-server contract:api/mcp-capabilities.md(tools, resources, prompts, write model) andapi/mcp-skills.md(building a connector / skill).ops/— backup / restore + encryption-key-rotation playbooks. These are the runbooks an operator reaches for during an incident.self-hosting/— horizontal-scaling notes (HEALTHLOG_PROCESS_TYPE=web|worker|all) and the deploy-pipeline recipe. Routine install steps stay ondocs.healthlog.dev. Includesself-hosting/mcp.md— enabling the off-by-default MCP connector and pointing Claude.ai / ChatGPT / Claude Desktop at it.migration/— release-by-release migration notes. Read the entry for the version you're upgrading from.audit/— per-release audit summaries archived for forensic traceability.apple-store-connect-checklist.md— the iOS submission gate.doctor-report.md— PDF generator design notes.codex-protocol-spec.md— Codex / ChatGPT OAuth protocol reverse-engineering notes.ui-guidelines.md— UI / a11y house style.
If you're a self-hoster looking to spin up an instance, start at https://docs.healthlog.dev or jump to the Quick Start in the project README.