diff --git a/src/dctest/core.cljs b/src/dctest/core.cljs
index d2b582c..057cf94 100644
--- a/src/dctest/core.cljs
+++ b/src/dctest/core.cljs
@@ -5,10 +5,10 @@
   (:require [cljs-bean.core :refer [->clj]]
             [clojure.edn :as edn]
             [clojure.string :as S]
-            [clojure.pprint :refer [pprint]]
-            [dctest.util :as util :refer [fatal obj->str log]]
+            [dctest.util :as util :refer [obj->str log]]
             [promesa.core :as P]
             [viasat.retry :as retry]
+            [viasat.util :refer [fatal parse-opts write-file]]
             ["stream" :as stream]
             #_["dockerode$default" :as Docker]
             ))
@@ -232,7 +232,7 @@ Options:
 
 (defn write-results-file [opts summary]
   (when-let [path (:results-file opts)]
-    (util/write-file path (obj->str summary))))
+    (write-file path (obj->str summary))))
 
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ;; Load Suite
@@ -274,7 +274,7 @@ Options:
 ;; Main
 
 (defn -main [& argv]
-  (P/let [opts (util/parse-opts usage (or argv #js []))
+  (P/let [opts (parse-opts usage (or argv #js []))
           {:keys [continue-on-error quiet project test-suite]} opts
 
           suites (P/all
diff --git a/src/dctest/util.cljs b/src/dctest/util.cljs
index 912a70e..44fdbdf 100644
--- a/src/dctest/util.cljs
+++ b/src/dctest/util.cljs
@@ -7,48 +7,20 @@
     [clojure.string :as S]
     [clojure.pprint :refer [pprint]]
     [promesa.core :as P]
+    [viasat.util :refer [Eprintln fatal read-file]]
     ["js-yaml" :as yaml]
-    ["fs" :as fs]
-    ["neodoc" :as neodoc]
-    ["util" :refer [promisify]]
     #_["ajv$default" :as Ajv]
     ))
 
 ;; TODO: use require syntax when shadow-cljs works with "*$default"
 (def Ajv (js/require "ajv"))
 
-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-;; Argument processing
-
-(defn clean-opts [arg-map]
-  (reduce (fn [o [a v]]
-            (let [k (keyword (S/replace a #"^[-<]*([^>]*)[>]*$" "$1"))]
-              (assoc o k (or (get o k) v))))
-          {} arg-map))
-
-(defn parse-opts [usage argv]
-  (-> usage
-      (neodoc/run (clj->js {:optionsFirst true
-                            :smartOptions true
-                            :argv argv}))
-      js->clj
-      clean-opts))
-
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ;; General functions
 
 (defn obj->str [obj]
   (js/JSON.stringify (clj->js obj)))
 
-(def Eprn     #(binding [*print-fn* *print-err-fn*] (apply prn %&)))
-(def Eprintln #(binding [*print-fn* *print-err-fn*] (apply println %&)))
-(def Epprint  #(binding [*print-fn* *print-err-fn*] (pprint %)))
-
-(defn fatal [code & args]
-  (when (seq args)
-    (apply Eprintln args))
-  (js/process.exit code))
-
 (defn log [opts & args]
   (when-not (:quiet opts)
     (apply println args)))
@@ -69,9 +41,6 @@
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ;; File functions
 
-(def read-file (promisify (.-readFile fs)))
-(def write-file (promisify (.-writeFile fs)))
-
 (defn load-yaml [path]
   (P/let [buffer (read-file path)]
     (try