I wrote servelement for fun. It serves the same purpose than polyserve but it is written in Go.
servelement
reads .bowerrc
(if exists) to get the bower components directory. It reads bower.json
to get my element name.
go get -u github.com/rougepied/servelement
Run servelement
cd my-element
servelement
Navigate to http://localhost:8080/my-element/demo.html
-p
The TCP port to use for the web server