Marc-André Bombeck
9be30897fa
Introduce src/lib/reference-ranges.ts: a structured, citation-backed per-metric reference-range backbone (band + source body + year) with a deterministic four-state placement helper, read by the UI surfaces. Each band traces to the medical-citations registry, which gains the supporting sources (ACC/AHA 2017 and ESC 2024 blood pressure, StatPearls pulse pressure and mean arterial pressure, ESC/ESH 2018 pulse-wave velocity, FDA 2024 and StatPearls pulse oximetry, J Gen Intern Med 2019 temperature, RCP NEWS2 and American Lung Association respiratory rate, visceral-fat imaging literature, AHA 2024 resting heart rate, ESC/NASPE 1996 HRV, Wilcox 2000, ACOG 651, Phillips 2017 and CDC 2024 sleep). Blood pressure keeps ESH 2023 as the labelled default; ACC/AHA 2017 and ESC 2024 appear only as displayed placement context. Enrich the metric explainers with concise cited reference bands and a general-guidance tooltip on every metric page: a darker-skin pulse-oximeter over-read caveat, device-proxy honesty for readiness/recovery/strain/stress, an HRV day-to-day-noise note, and a resting-heart-rate clarification. Fill the empty registry normal ranges, reconcile the steps green floor to 8,000, and tighten the body-temperature band below the fever line. Add free pulse-pressure and mean-arterial-pressure context on the blood- pressure detail page, plus cycle-physiology and sleep-hygiene copy across all six locales. Cycle thresholds carry a verification marker pending an ACOG source check.
HealthLog
Self-hosted, privacy-first health tracking. Your vitals, your devices, your server.
Website · Live Demo · Documentation · iOS TestFlight
Why HealthLog
HealthLog is a self-hosted health tracking app (PWA + native iOS client) that runs from a single docker compose up on a NAS, homelab, or small VPS. It brings weight, blood pressure, pulse, blood glucose, body composition, sleep, mood, menstrual cycle, and medications onto one timeline — synced from the devices you already own — and keeps everything encrypted at rest on hardware you control. No vendor cloud, no subscription, no telemetry.
Try the live demo to see a working install — sign in with demo / demo123demo123.
Highlights
- Every vital on one timeline. Weight, blood pressure, pulse, glucose, body composition, sleep, SpO₂, mood, and cycle tracking — charted with trends, moving averages, and clinical reference ranges (ESH 2023, ADA 2024), overridable with the targets your clinician set.
- Your devices, one server. Withings and WHOOP sync over OAuth2, Google Health/Fitbit connects experimentally, an Apple Health
export.zipfolds your full history in, and the native iOS app streams HealthKit live. A per-metric source priority decides which reading is canonical when wearables overlap. - Medication tracking that tells the truth. Flexible schedules (weekly injections, weekday-only, intervals, PRN, cyclic), a configurable intake window per dose, and a traceable dose history where every slot reads taken, late, skipped, or missed — the same ledger the compliance rate is computed from, so the percentage can never disagree with the timeline.
- AI insights you own. Daily briefing, health scores, correlations, and a conversational coach grounded in your own measurements, with proactive check-ins. Bring your own OpenAI or Anthropic key, or point at a local endpoint (Ollama, LM Studio, vLLM) so nothing leaves your network.
- Clinician-ready output. A doctor-report PDF generated client-side, a read-only HL7 FHIR R4 API, and scoped, time-limited share links you revoke after the visit.
- Private by construction. AES-256-GCM encryption at rest with zero-downtime key rotation, passkey login, server-side sessions, strict CSP — and no third-party tracking anywhere.
- Built to be lived in. Installable PWA with offline support, medication reminders over APNs, Telegram, ntfy, and Web Push, a sub-second dashboard on years of imported history, English and German end to end.
The full feature tour, integration guides, and API reference live at docs.healthlog.dev.
Quick start
git clone https://github.com/MBombeck/HealthLog.git && cd HealthLog
cp .env.example .env
echo "POSTGRES_PASSWORD=$(openssl rand -hex 32)" >> .env
echo "ENCRYPTION_KEY=$(openssl rand -hex 32)" >> .env
echo "API_TOKEN_HMAC_KEY=$(openssl rand -hex 32)" >> .env
docker compose up -d
Open http://localhost:3000 — the first registered user becomes admin. The compose file pulls a pre-built multi-arch image (amd64 + arm64) from GHCR; no build step required. Behind a reverse proxy, set NEXT_PUBLIC_APP_URL and APP_URL first — see the self-hosting guide.
Self-hosting
One container hosts both the web server and the job worker by default; split them via HEALTHLOG_PROCESS_TYPE=web|worker for horizontal scale. Encrypted daily backups to any S3-compatible bucket are opt-in via the admin panel, new users join by invite link or QR code, and the stack works out of the box behind Caddy, Traefik, Nginx, or Coolify.
HealthLog ships releases roughly weekly. Pin a tag, back up before upgrades, and skim the CHANGELOG before pulling latest. The operator manual — reverse proxy, migrations, encryption-key rotation, backup and restore — lives at docs.healthlog.dev.
Native iOS app
A SwiftUI companion in public beta via TestFlight, built on the same API as the web client: live HealthKit two-way sync, medication reminders with action buttons that work without opening the app, and an on-device coach on Apple-Intelligence-capable iPhones. Code lives in MBombeck/healthlog-iOS.
Tech stack
Next.js 16 (App Router, React Server Components), TypeScript strict, PostgreSQL 16 with Prisma, pg-boss for jobs, Tailwind CSS 4 + shadcn/ui, Recharts, WebAuthn passkeys, Vitest + Playwright, multi-stage Alpine Docker image. The OpenAPI 3.1 contract for native clients is generated from the Zod schemas at docs/api/openapi.yaml.
Documentation
| User and operator docs | docs.healthlog.dev |
| Release history | CHANGELOG.md |
| API contract | docs/api/openapi.yaml |
| Security policy | SECURITY.md |
| Contributing | CONTRIBUTING.md |
Status
Actively developed — new releases roughly weekly, issue reports and PRs welcome. Behaviour and schema can change between versions; migrations are forward-only.
License
HealthLog is licensed under the PolyForm Noncommercial License 1.0.0: free to use, self-host, and modify for noncommercial purposes. Commercial use requires a separate agreement — open an issue or reach out via healthlog.dev. Releases up to and including v1.15.18 were published under AGPL-3.0 and remain available under that license.
healthlog.dev · Live Demo · Docs · iOS TestFlight · Buy Me a Coffee