use arguments or variables

install.sh

@@ -7,15 +7,17 @@ then
 	exit 1
 fi
 
-useradd --shell /bin/sh --system --home-dir /usr/local/upfast upfast ||
+UFDIR=${1:=/srv/upfast}
+USER=${1:=upfast}
+useradd --shell /bin/sh --system --home-dir $UFDIR $UFUSER ||
 	exit 1
-mkdir -p /usr/local/upfast  || # dodge copying of skeletons
+mkdir -p "$UFDIR"  || # dodge copying of skeletons
 	exit 1
 
-chown upfast:upfast /usr/local/upfast
-chmod 700 /usr/local/upfast
+chown "$UFUSER:$UFUSER" "$UFDIR"
+chmod 700 "$UFDIR"
 
-su upfast -c'
+su "$UFUSER" -c"
 cd
 git clone https://code.cronyakatsuki.xyz/tlast/upfast . || 
 	exit 1