How to serve static files

[rrenode]

Project Tree
|- prologueTest.nim
|- public
    \- a.html

import prologue
import prologue/middlewares/staticfile

proc hello*(ctx: Context) {.async.} =
  resp "<h1>Hello, Prologue!</h1>"

var app = newApp()
app.use(staticFileMiddleware("public"))
app.addRoute("/", hello)
app.run()

Based on the docs I'd assume http://127.0.0.1:8080/a.html would serve but it doesn't. I've tried http://127.0.0.1:8080/public/a.html which is also 404.

Am I doing something wrong?