fix: add necesery envs

.env.example

@@ -4,10 +4,20 @@ POSTGRES_USER=cactoide
 POSTGRES_PASSWORD=cactoide_password
 POSTGRES_PORT=5432
 
-# Application configuration
 DATABASE_URL="postgres://cactoide:cactoide_password@localhost:5432/cactoide_database"
+
+# Application configuration
 APP_VERSION=latest
 PORT=5173
 HOSTNAME=0.0.0.0
 
+# Logger configuration
+LOG_PRETTY=true
+LOG_LEVEL=trace
+
+# If you don't want to use the default home page you can turn off
+# in this case the /discovery page remain the home of your site
 PUBLIC_LANDING_INFO=true
+
+# Federation config
+FEDERATION_INSTANCE=true