minor hygiene improvements to ./host script

host

@@ -1,6 +1,18 @@
-#!/usr/bin/env nix-shell
-#! nix-shell -i bash --pure
-#! nix-shell -p bash simple-http-server
+#!/usr/bin/env bash
 
-cd www
-simple-http-server --nocache
+# ===== Configuration ===== #
+NOCACHE=true
+SRV_ARGS=""
+# ========================= #
+
+function hostwww (
+	local ARGS="$SRV_ARGS"
+	if [[ "$NOCACHE" == true ]]; then
+		ARGS+=" --nocache"
+	fi
+	
+	cd www
+	simple-http-server "$ARGS" "$@" 
+)
+
+hostwww