Short reference covering: git repo location, Syncthing fleet sync, ignore files (.gitignore / .stignore), helper scripts (install.py, dev-restart.sh, backup.sh), standard change workflow, doc update checklist, pip dependency process, and key paths on the service host. Linked from MASTER.md document map. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>