diff --git a/isidore.sh b/isidore.sh
index a0b42a3..46fb3a1 100755
--- a/isidore.sh
+++ b/isidore.sh
@@ -26,6 +26,11 @@ ISIDORE_AUTHOR_NAME=""
 PROG_NAME=$0
 PROJECT_NAME="Isidore"
 
+SOURCE_DIR="site/"
+TMP_DIR="/tmp/isidore-workdesk/"
+OUTPUT_DIR="output/"
+TEMPLATE_DIR="templates/"
+
 ##
 # Create the configuration file. This function is called if it does not already
 # exist.
@@ -134,8 +139,8 @@ function new_project()
 		read NEW_PROJECT_URL
 	fi
 	mkdir $NEW_PROJECT_DIR
-	mkdir -p $NEW_PROJECT_DIR/site/
-	mkdir -p $NEW_PROJECT_DIR/templates/
+	mkdir -p $NEW_PROJECT_DIR/$SOURCE_DIR
+	mkdir -p $NEW_PROJECT_DIR/$TEMPLATE_DIR
 	echo \
 "<?php
 \$site_name = \"$NEW_PROJECT_NAME\";
@@ -155,9 +160,9 @@ function new_project()
 function clean_project()
 {
 	check_in_project
-	if [ -d "./output/" ]
+	if [ -d "$OUTPUT_DIR" ]
 	then
-		rm -r ./output/
+		rm -r $OUTPUT_DIR
 	fi
 	echo "Project cleaned."
 }
@@ -169,31 +174,32 @@ function build_project()
 {
 	check_in_project
 
-	mkdir -p ./output/
-	WORKDESK="/tmp/isidore-workdesk"
-	CFG_HEADER_FILE="$WORKDESK/config-header.php"
-	mkdir -p $WORKDESK
-	for i in $(find site/ -name '*.php' -not -name '*.cfg.php')
+	CFG_HEADER_FILE="$TMP_DIR/config-header.php"
+
+	mkdir -p $OUTPUT_DIR
+	mkdir -p $TMP_DIR
+	echo "<?php include(getcwd() . '/config.php'); ?>" > $CFG_HEADER_FILE
+
+	for i in $(find $SOURCE_DIR -type d)
 	do
-		echo "<?php include getcwd() . '/config.php'; ?>" > $CFG_HEADER_FILE
-		mkdir -p $WORKDESK/${i%/*}
-		cat $CFG_HEADER_FILE $i > $WORKDESK/$i
-		# the 4 offset is to avoid including `site/`
-		: ${i:4}
-		OUT_DIR="./output/${_%/*}"
-		mkdir -p $OUT_DIR
-		: ${i: :-4}
-		OUT_FILE="$OUT_DIR/${_##*/}"
-		php $WORKDESK/$i > $OUT_FILE
+		mkdir -p $OUTPUT_DIR/${i:${#SOURCE_DIR}}
+		mkdir -p $TMP_DIR/$i
 	done
 
-	for i in $(find site/ -type f -not -name '*.php')
+	for i in $(find $SOURCE_DIR -name '*.php' -not -name '*.cfg.php')
 	do
-		mkdir -p ./output/${i%/*}
-		cp $i ./output/$i
+		cat $CFG_HEADER_FILE $i > $TMP_DIR/$i
+		: ${i:${#SOURCE_DIR}}
+		OUT_FILE="$OUTPUT_DIR/${_: :-4}"
+		php $TMP_DIR/$i > $OUT_FILE
 	done
 
-	rm -r $WORKDESK
+	for i in $(find $SOURCE_DIR -type f -not -name '*.php')
+	do
+		cp $i $OUTPUT_DIR/${i:${#SOURCE_DIR}}
+	done
+
+	rm -r $TMP_DIR
 }
 
 set_config_vars
@@ -228,7 +234,7 @@ case $1 in
 	build)
 		build_project;;
 	serve|server)
-		php -S localhost:8080 -t ./output/;;
+		php -S localhost:8080 -t $OUTPUT_DIR/;;
 	clean)
 		clean_project;;
 	help)