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+# Copilot Instructions
+
+This monorepo contains multiple subprojects. Below are the specific instructions for each.
+
+## Web Application
+/webapp
+
+This is a TypeScript + Vue 3 + Vuetify application.
+
+### Architecture
+- Vue 3 (Composition API)
+- State management is local-first; avoid global stores unless required
+- Vuetify for UI components and styling
+
+### Page Structure
+- Each page resides in `src/views`
+- Shared components go in `src/components`
+- Styles are scoped to components; avoid global styles unless necessary
+- Prefer helper classes (provided by Vuetify) for styling over CSS rules
+- Wrap most pages in DefaultLayout.vue for consistent headers/footers
+- Use the Hero component for prominent page headings
+
+### Coding Style
+- Prefer functional patterns
+
+### Security & Privacy
+- Never log PII
+- Do not introduce tracking, analytics, or telemetry
+
+### General Rules
+- Do not generate placeholder logic
+- If something is unknown, leave a TODO comment
+- Prefer simple, readable solutions over clever ones
+
+## Backend Service
+/shotgun
+
+This is being deprecated. No new features should be added. Backend functionality should be migrated to serverless functions where possible.
+
+## Terraform
+/terraform
+
+This contains Terraform code for infrastructure management.
+
+## Serverless Functions
+/serverless
+
+This contains serverless functions to support the web application.