diff --git a/.env.development b/.env.development
deleted file mode 100644
index 16607d6..0000000
--- a/.env.development
+++ /dev/null
@@ -1,40 +0,0 @@
-VITE_SUPABASE_ANON_KEY=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJhdWQiOiJhdXRoZW50aWNhdGVkIiwiaWF0IjoxNzcxODE3MjE5LCJpc3MiOiJzdXBhYmFzZSIsInN1YiI6IjAwMDAwMDAwLTAwMDAtMDAwMC0wMDAwLTAwMDAwMDAwMDAwMCIsImV4cCI6MzM0ODYxNzIxOSwicm9sZSI6ImFub24ifQ.JbmQOTOBAzpBJ9JttOrGlo_JTXDXhCjYMjKiFvRkaNQ
-PORT_FRONTEND=5173
-PORT_FRONTEND_HMR=3002
-PORT_API=8000
-PORT_SUPABASE=8000
-
-HOST_FRONTEND=192.168.0.94:5173
-VITE_PORT_FRONTEND=5173
-VITE_PORT_FRONTEND_HMR=5173
-
-VITE_APP_NAME="Classroom Copilot"
-VITE_SUPER_ADMIN_EMAIL=admin@classroomcopilot.ai
-VITE_DEV=true
-VITE_FRONTEND_SITE_URL=http://192.168.0.94:5173
-VITE_APP_HMR_URL=http://192.168.0.94:5173
-
-# Supabase is on external container - use its IP
-VITE_SUPABASE_URL=http://192.168.0.155:8000
-
-# API should use localhost for local development
-VITE_API_URL=http://192.168.0.94:8000
-VITE_API_BASE=http://192.168.0.94:8000
-
-# Neo4j
-VITE_NEO4J_URL=bolt://192.168.0.208:7687
-VITE_NEO4J_USER=neo4j
-VITE_NEO4J_PASSWORD=kevlarai
-
-# LLM
-VITE_LLM_PROVIDER=ollama
-VITE_OLLAMA_API_URL=https://ollama.kevlarai.com
-
-# Microsoft
-VITE_MICROSOFT_CLIENT_ID=dummy_client_id
-VITE_MICROSOFT_CLIENT_SECRET_DESC="Microsoft OAuth client secret"
-VITE_MICROSOFT_CLIENT_SECRET_ID=dummy_secret_id
-VITE_MICROSOFT_CLIENT_SECRET=dummy_secret
-VITE_MICROSOFT_TENANT_ID=common
-
-VITE_SEARCH_URL=http://localhost:8888
diff --git a/vite.config.ts b/vite.config.ts
index a3d3946..121250e 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -33,6 +33,10 @@ export default defineConfig(({ mode }) => {
           enabled: true,
           type: 'module',
         },
+        injectManifest: {
+          // Allow larger bundles to be precached by the service worker
+          maximumFileSizeToCacheInBytes: 5 * 1024 * 1024, // 5 MiB
+        },
         manifest: {
           name: 'Classroom Copilot',
           short_name: 'Classroom Copilot',