diff --git a/storage/storage.lisp b/storage/storage.lisp
index a1decbb..1fbe9e9 100644
--- a/storage/storage.lisp
+++ b/storage/storage.lisp
@@ -8,13 +8,9 @@
                     (:core :scopes/core)
                     (:alx :alexandria))
   (:export #:config
-           #:*db-config*
-           #:make-engine #:make-storage #:engine
-           #:timestamp-to-sql
            #:storage #:setup
-           #:params #:db-options #:db-params #:qualified-table-name
+           #:params #:qualified-table-name
            #:do-sql #:query #:drop-table
-           #:schema
            #:normalize-keyword #:normalize-plist))
 
 (in-package :scopes/storage)
@@ -30,29 +26,10 @@
 
 ;;;; db configurations
 
-(defvar *backends*
-  '(:dbi dbi-make-engine))
-
-(defvar *db-engines*
-  '(:postgres db-engine-pg))
-
 (defvar *db-params*
   '(:sqlite3 (:id-type integer :json-type json :ts-sql identity)
     :postgres (:id-type bigserial :json-type jsonb :ts-sql ts-string)))
 
-(defclass db-engine ()
-  ((connect :initarg :connect)
-   (params :initarg :params)
-   (config :reader config :initarg :config)))
-
-(defun make-engine (cfg)
-  (let* ((dbconf (db-config cfg))
-         (backend (getf dbconf :backend)))
-    (funcall (getf *backends* backend) dbconf)))
-
-(defgeneric timestamp-to-sql (engine ts)
-  (:method ((engine db-engine) ts) ts))
-
 ;;;; context and storage classes
 
 (defclass context (core:context)
@@ -80,19 +57,6 @@
     (setf (schema st) (getf (getf conf :options) :schema))
     ctx))
 
-(defun make-storage (engine)
-  (let ((st (make-instance 'storage :engine engine))
-        (conn (funcall (slot-value engine 'connect))))
-    (setf (slot-value st 'conn) conn)
-    st))
-
-(defun db-params (st)
-  (slot-value (slot-value st 'engine) 'params))
-
-(defun db-options (st)
-  (let ((config (config (engine st))))
-    (getf config :options)))
-
 ;;;; database (SQL) interface
 
 (defun qualified-table-name (st tn)
@@ -138,20 +102,5 @@
 
 ;;;; backend-/driver-specific stuff
 
-(defun dbi-make-engine (config)
-  (let* ((db-type (getf config :db-type))
-         (params (getf *db-params* db-type))
-         (engine (getf *db-engines* db-type 'db-engine))
-         (conn-args (getf config :connect-args)))
-    (make-instance engine 
-                   :params params :config config
-                   :connect #'(lambda () 
-                                (apply #'dbi:connect-cached db-type conn-args)))))
-
-(defclass db-engine-pg (db-engine) ())
-
-(defmethod timestamp-to-sql ((engine db-engine-pg) ts)
-  (ts-string ts))
-
 (defun ts-string (ts)
   (format nil "~a" (local-time:universal-to-timestamp ts)))
diff --git a/storage/tracking.lisp b/storage/tracking.lisp
index bca7ed4..58d9fd6 100644
--- a/storage/tracking.lisp
+++ b/storage/tracking.lisp
@@ -21,9 +21,6 @@
    (data :accessor data :initform nil)
    (container :reader container :initarg :container)))
 
-(defun engine (tr)
-  (storage:engine (storage (container tr))))
-
 (defun timestamp-to-sql (tr ts)
   (funcall (getf (storage:params (storage (container tr))) :ts-sql) ts))
 
@@ -54,7 +51,6 @@
     (with-slots ((trid trackid) (ts time-stamp) data) track
       (if trid (setf (getf vl :trackid) trid))
       (if ts (setf (getf vl :timestamp) (timestamp-to-sql track ts)))
-                   ;(storage:timestamp-to-sql (engine track) ts)))
       (if data (setf (getf vl :data) (jzon:stringify data))))
     vl))
    
diff --git a/test/test-storage.lisp b/test/test-storage.lisp
index 5636eda..d5deeac 100644
--- a/test/test-storage.lisp
+++ b/test/test-storage.lisp
@@ -33,9 +33,6 @@
   (core:setup-services)
   (let* ((ctx (core:find-service :storage))
          (cfg (core:config ctx)))
-         ;(engine (storage:make-engine cfg))
-         ;(st (storage:make-storage engine)))
-    ;(setf (storage:schema st) (getf (storage:db-options st) :schema))
     (test-track ctx)
     (t:show-result)))