diff --git a/dev/bench/core.cljs b/dev/bench/core.cljs
new file mode 100644
index 000000000..a4411cc0c
--- /dev/null
+++ b/dev/bench/core.cljs
@@ -0,0 +1,78 @@
+(ns bench.core
+  (:require [kdtree :as k]))
+
+(enable-console-print!)
+
+(defn generate-points
+  [n]
+  (for [x (range 0 n)
+        y (range 0 n)]
+    (k/point2d x y)))
+
+(defn bench-init-100
+  []
+  (let [points (into-array (generate-points 10))]
+    (time
+     (k/create2d points))))
+
+(defn bench-init-1000
+  []
+  (let [points (into-array (generate-points 100))]
+    (time
+     (k/create2d points))))
+
+(defn bench-init-10000
+  []
+  (let [points (into-array (generate-points 1000))]
+    (time
+     (k/create2d points))))
+
+(defn bench-init
+  []
+  (println "init:100")
+  (bench-init-100)
+  (println "init:1000")
+  (bench-init-1000)
+  (println "init:10000")
+  (bench-init-10000))
+
+(defn bench-knn-100000-2
+  []
+  (let [tree (-> (into-array (generate-points 10000))
+                 (k/create2d points))
+        pt (k/point2d (rand-int 10000)
+                      (rand-int 10000))]
+
+    (dotimes [i 100]
+      (time
+       (.nearest tree pt 2)))))
+
+(defn bench-knn-10000-2
+  []
+  (let [tree (-> (into-array (generate-points 1000))
+                 (k/create2d points))
+        pt (k/point2d (rand-int 1000)
+                      (rand-int 1000))]
+
+    (dotimes [i 100]
+      (time
+       (.nearest tree pt 2)))))
+
+(defn bench-knn
+  []
+  (println "knn:10000:2")
+  (bench-knn-10000-2))
+
+(defn main
+  [& [type]]
+  (cond
+    (= type "init")
+    (bench-init)
+
+    (= type "knn")
+    (bench-knn)
+
+    :else
+    (println "not implemented")))
+
+(set! *main-cli-fn* main)
diff --git a/project.clj b/project.clj
index 7b976a03a..28cc3c441 100644
--- a/project.clj
+++ b/project.clj
@@ -4,6 +4,11 @@
   :license {:name "MPL 2.0" :url "https://www.mozilla.org/en-US/MPL/2.0/"}
   :jvm-opts ["-Dclojure.compiler.direct-linking=true"]
 
+  :source-paths ["src" "vendor"]
+  :test-paths ["test"]
+
+  :profiles {:dev {:source-paths ["dev"]}}
+
   :dependencies [[org.clojure/clojure "1.8.0" :scope "provided"]
                  [org.clojure/clojurescript "1.8.40" :scope "provided"]
                  [figwheel-sidecar "0.5.2" :scope "test"]
diff --git a/scripts/build b/scripts/build
deleted file mode 100755
index 0b894a2fb..000000000
--- a/scripts/build
+++ /dev/null
@@ -1,2 +0,0 @@
-#!/bin/sh
-lein trampoline run -m clojure.main scripts/build.clj
diff --git a/scripts/build-bench b/scripts/build-bench
new file mode 100755
index 000000000..e3c4da20f
--- /dev/null
+++ b/scripts/build-bench
@@ -0,0 +1,2 @@
+#!/bin/sh
+lein trampoline run -m clojure.main scripts/build-bench.clj
diff --git a/scripts/build-bench.clj b/scripts/build-bench.clj
new file mode 100644
index 000000000..e76ed965a
--- /dev/null
+++ b/scripts/build-bench.clj
@@ -0,0 +1,13 @@
+(require '[cljs.build.api :as b])
+
+(b/build
+ (b/inputs "vendor" "dev")
+ {:main 'bench.core
+  :output-to "out/bench.js"
+  :output-dir "out"
+  :parallel-build false
+  :optimizations :simple
+  :language-in  :ecmascript5
+  :language-out :ecmascript5
+  :target :nodejs
+  :verbose true})
diff --git a/scripts/build-tests b/scripts/build-tests
new file mode 100755
index 000000000..ab086e388
--- /dev/null
+++ b/scripts/build-tests
@@ -0,0 +1,2 @@
+#!/bin/sh
+lein trampoline run -m clojure.main scripts/build-tests.clj
diff --git a/scripts/build.clj b/scripts/build-tests.clj
similarity index 94%
rename from scripts/build.clj
rename to scripts/build-tests.clj
index 64146298f..b47a83d9c 100644
--- a/scripts/build.clj
+++ b/scripts/build-tests.clj
@@ -8,7 +8,7 @@
 
 (let [start (System/nanoTime)]
   (b/build
-   (b/inputs "src" "test")
+   (b/inputs "src" "vendor" "test")
    {:main 'uxbox.test-runner
     :output-to "out/tests.js"
     :output-dir "out"
diff --git a/scripts/dist.clj b/scripts/dist.clj
index 0456001d0..22492f61b 100644
--- a/scripts/dist.clj
+++ b/scripts/dist.clj
@@ -8,7 +8,7 @@
 
 (let [start (System/nanoTime)]
   (b/build
-   (b/inputs "src")
+   (b/inputs "src" "vendor")
    {:main 'uxbox.core
     :parallel-build false
     :warnings {:ns-var-clash false}
diff --git a/scripts/figwheel.clj b/scripts/figwheel.clj
index 4ac2401e0..6575e7621 100644
--- a/scripts/figwheel.clj
+++ b/scripts/figwheel.clj
@@ -11,13 +11,15 @@
    :all-builds
    [{:id "dev"
      :figwheel {:on-jsload "uxbox.ui/init"}
-     :source-paths ["src"]
+     :source-paths ["src" "vendor"]
      :compiler {:main 'uxbox.core
                 :asset-path "js"
                 :parallel-build false
                 :optimizations :none
+                ;; :closure-defines {"uxbox.repo.core.url"
+                ;;                   "https://test.uxbox.io/api"}
                 :closure-defines {"uxbox.repo.core.url"
-                                  "https://test.uxbox.io/api"}
+                                  "http://localhost:6060/api"}
                 :warnings {:ns-var-clash false}
                 :pretty-print true
                 :language-in  :ecmascript5
diff --git a/scripts/watch-bench b/scripts/watch-bench
new file mode 100755
index 000000000..663fcd703
--- /dev/null
+++ b/scripts/watch-bench
@@ -0,0 +1,2 @@
+#!/bin/sh
+lein trampoline run -m clojure.main scripts/watch-bench.clj
diff --git a/scripts/watch-bench.clj b/scripts/watch-bench.clj
new file mode 100644
index 000000000..31c1ca1dc
--- /dev/null
+++ b/scripts/watch-bench.clj
@@ -0,0 +1,14 @@
+(require '[cljs.build.api :as b])
+
+(b/watch
+ (b/inputs "vendor" "dev")
+ {:main 'bench.core
+  :output-to "out/bench.js"
+  :output-dir "out"
+  :parallel-build false
+   :optimizations :simple
+  :pretty-print true
+  :target :nodejs
+  :language-in  :ecmascript6
+  :language-out :ecmascript5
+  :verbose true})
diff --git a/scripts/watch b/scripts/watch-tests
similarity index 100%
rename from scripts/watch
rename to scripts/watch-tests
diff --git a/scripts/watch.clj b/scripts/watch-tests.clj
similarity index 91%
rename from scripts/watch.clj
rename to scripts/watch-tests.clj
index c073cc75b..63a89bb7e 100644
--- a/scripts/watch.clj
+++ b/scripts/watch-tests.clj
@@ -4,7 +4,7 @@
 (alter-var-root #'cljs.tagged-literals/*cljs-data-readers*
                 assoc 'ux/tr (fn [v] `(uxbox.locales/tr ~v)))
 
-(b/watch (b/inputs "src" "test")
+(b/watch (b/inputs "src" "vendor" "test")
   {:main 'uxbox.test-runner
    :output-to "out/tests.js"
    :output-dir "out"