diff --git a/config.nims b/config.nims
index fcbd3f8..933d84f 100644
--- a/config.nims
+++ b/config.nims
@@ -3,3 +3,9 @@
 when withDir(thisDir(), system.fileExists("nimble.paths")):
   include "nimble.paths"
 # end Nimble config
+
+--threads:on
+--opt:speed
+--excessiveStackTrace:on
+# enable metric collection
+--define:metrics