This is how I solved it:
[/]
tools.staticdir.root: os.path.abspath("public/")
tools.encode.on: False
tools.gzip.on: True
tools.gzip.mime_types: ['text/html', 'text/plain', 'application/json', 'text/javascript', 'application/javascript']
[/static]
tools.etags.on: True
tools.staticdir.on: True
tools.staticdir.dir: "public"
[/js]
tools.staticdir.on: True
tools.staticdir.dir: 'js'
[/css]
tools.staticdir.on: True
tools.staticdir.dir: 'css'
[/images]
tools.staticdir.on: True
tools.staticdir.dir: 'images'