====== Launch a read-only web server displaying some sort of shell output ======
You need to do it in a part:
The script below will launch a shell output recording session. 
<code bash>
#!/bin/sh
#start_read_only_screen.sh
echo /tmp/$STY
touch /tmp/$STY
chmod 0600 /tmp/$STY
script -a -f /tmp/$STY
rm /tmp/$STY
</code>

Then you need to run the following: 

<code bash>
shellinaboxd -t -s /:$USER:$USER:/home/$USER:"/usr/bin/tail -f /tmp/$STY" &
</code>
You can put it in a script, as ''$STY'' is exported. Please don't single-quote ('''$STY''') that variable.