Automation

The webhook flow is already designed in SPARK-amytis-glue-clearance.md:

Forgejo push (seedbank) → webhook → Pi4 Bun script
  ├── git pull seedbank
  ├── bun run build:kindle
  └── rsync kindle-out/ → VPS

No cron needed. Changes propagate on push. End-to-end latency: ~30 seconds.