diff --git a/run b/run
old mode 100755
new mode 100644
index 211a56d..e36a811
--- a/run
+++ b/run
@@ -1,5 +1,33 @@
 #!/usr/bin/env bash
 set -e
-./lua_translate
-gcc -std=gnu89 src/main.c -g -lSDL2 -llua5.3 -lm -o engine -O3 -Werror -Wall
+
+if [ $# -ne 1 ]; then
+    echo "Usage: $0 <supported_os>"
+    exit 1
+fi
+
+target_os=$(echo "$1")
+
+printf "$target_os\n"
+
+case "$target_os" in
+    linux)
+        echo "compiling linux"
+        ./lua_translate
+        gcc -std=gnu89 src/main.c -g -lSDL2 -llua5.3 -lm -o engine -O3 -Werror -Wall
+        ;;
+    openbsd)
+        echo "compiling openbsd"
+        sed -i 's/lua5\.3/lua-5.3/g' lua_translate
+        ./lua_translate
+        egcc -std=gnu89 src/main.c -g -lSDL2 -llua5.3 -lm -o engine -O3 -Werror -Wall -I /usr/local/include
+        ;;
+    *)
+        echo "Unsupported OS, only linux and openbsd work"
+        exit 1
+        ;;
+esac
+
+printf "\n\tengine is running"
+
 exec ./engine