ServicePilot

Technology

ServicePilot is a React single-page app on Firebase, hosted as a static site on Render, with no server to maintain.

Layer	Technology	Role in the app
Frontend	React 18, Vite, Tailwind CSS	Role-based screens, light and dark mode, responsive layout
Libraries	Recharts, React Router, date-fns, xlsx	Charts, routing, dates, Excel export
Authentication	Firebase Authentication	Email login; managers create and disable team members
Database	Cloud Firestore	Live listeners keep every dashboard current; role-based security rules
Automation	Firebase Cloud Functions, Nodemailer	Status notifications, scheduled delay checks, monthly Excel report
Hosting	Render Static Site, GitHub	Builds and deploys on every push

Key engineering decisions

• Access is enforced in the database, not only the screen. Firestore rules limit each role to its own collections, so a PDI Controller cannot read service vehicles at all.
• PDI is fully separate. It has its own collections, so adding it to the live system could not touch existing service data.
• The gate pass rule lives in code. The only function that changes a PDI vehicle’s status also creates its gate pass, so a status change without a pass is not possible.
• Creating users never signs out the manager. New accounts are created through a second Firebase Auth instance and rolled back if the profile write fails.