Fresh is a command line tool that builds and (re)starts your web application everytime you save a go or template file.
If the web framework you are using supports the Fresh runner, it will show build errors on your browser.
Fresh will watch for file events, and every time you create/modifiy/delete a file it will build and restart the application. If `go build` returns an error, it will logs it in the tmp folder.
Traffic (https://github.com/pilu/traffic) already has a middleware that shows the content of that file if it is present. This middleware is automatically added if you run a Traffic web app in dev mode with Fresh.