added bind mount and updated env examples

Pinchflat/.env.example

@@ -27,7 +27,12 @@ PINCHFLAT_SECRET_KEY=
 # Controls default permissions on created files (022 = owner rw, group/other r)
 PINCHFLAT_UMASK=022
 
-# NFS
+# Bind mount only
+
+# Host path for the config directory (SQLite DB, logs, metadata)
+PINCHFLAT_CONFIG=/path/to/config
+
+# NFS only
 
 # IP address or hostname of the NFS server
 PINCHFLAT_NFS_SERVER=192.168.1.x