diff --git a/drush/01_crypto_host/1.dev_protocol.v0.md b/drush/01_crypto_host/1.dev_protocol.v0.md
index 316cc26..50b2b5f 100644
--- a/drush/01_crypto_host/1.dev_protocol.v0.md
+++ b/drush/01_crypto_host/1.dev_protocol.v0.md
@@ -125,6 +125,19 @@ The final web application should be a sleek, professional, and intuitive platfor
 - Tailwind CSS should be used for styling to ensure a responsive, modern look.
 - React hooks should manage all state changes and API calls using **Promises** to maintain a smooth and efficient data flow.
 
+# Manual enhancements
+
+## Update project
+
+```
+git pull git@github.com:Telegram-Mini-Apps/nextjs-template.git
+```
+
+## Add shadcn and tailwind support
+
+> https://ui.shadcn.com/docs/installation/manual
+> https://tailwindcss.com/docs/guides/nextjs
+
 # UI
 
 ## Desktop
diff --git a/drush/01_crypto_host/JSON_4B_1.json.gpg b/drush/01_crypto_host/JSON_4B_1.json.gpg
index 89e1198..79d8ea9 100644
Binary files a/drush/01_crypto_host/JSON_4B_1.json.gpg and b/drush/01_crypto_host/JSON_4B_1.json.gpg differ
diff --git a/drush/01_crypto_host/cbl_app/.env.local.example b/drush/01_crypto_host/cbl_app/.env.local.example
new file mode 100644
index 0000000..c57567f
--- /dev/null
+++ b/drush/01_crypto_host/cbl_app/.env.local.example
@@ -0,0 +1,17 @@
+#TODO: add env variables
+OPENAI_API_KEY=sk-proj-xxxxx
+NEXT_PUBLIC_OPENAI_API_KEY=sk-proj-xxxxx
+
+### Environment Variables
+NEXT_PUBLIC_FIREBASE_API_KEY=***
+NEXT_PUBLIC_FIREBASE_AUTH_DOMAIN=***
+NEXT_PUBLIC_FIREBASE_PROJECT_ID=***
+NEXT_PUBLIC_FIREBASE_STORAGE_BUCKET=***
+NEXT_PUBLIC_FIREBASE_MESSAGING_SENDER_ID=***
+NEXT_PUBLIC_FIREBASE_APP_ID=***
+
+### Langfuse Variables
+LANGFUSE_SECRET_KEY=sk-lf-***
+LANGFUSE_PUBLIC_KEY=pk-lf-***
+LANGFUSE_HOST="https://cloud.langfuse.com" # 🇪🇺 EU region
+# LANGFUSE_BASEURL="https://us.cloud.langfuse.com" # 🇺🇸 US region
\ No newline at end of file
diff --git a/drush/01_crypto_host/cbl_app/.gitignore b/drush/01_crypto_host/cbl_app/.gitignore
index 0a8e43a..00bba9b 100644
--- a/drush/01_crypto_host/cbl_app/.gitignore
+++ b/drush/01_crypto_host/cbl_app/.gitignore
@@ -27,7 +27,7 @@ yarn-error.log*
 
 # local env files
 .env*.local
-.env*
+.env
 
 # vercel
 .vercel