An IndieAuth guarded fullpage textbox. Contents can be saved with the button or by pressing Ctrl+S.
To build you will need Go. Then do the following to install and run:
$ go get hawx.me/code/textbox
$ textbox --me "https://your.indieauth.enabled.domain/"
Where https://your.indieauth.enabled.domain/
is the URL you
can authenticate with IndieAuth.
You should now be able to open http://localhost:8080 and start writing.