Kickstart either runs on AJAX or Javascript Redirects mode. The common thing here being "Javascript", ergo it needs a browser.
If you are a subscriber to the Professional release, there is a restore.php script in the administrator area. This is a versatile archive extraction PHP script which can be run in unattended mode with a simple PHP loop. Even so, what is the point? Kickstart and restore.php will simply extract the archive. ABI (the embedded installer) only runs from a browser.
I have developed a CRON mode PHP application for unattended deployments of multiple websites. It uses XML files to specify which would be extracted where and how. I guess, if you're interested, it is pretty much what you're looking for. However, unlike most of my other software, this is not free of charge.
Nicholas K. Dionysopoulos
Lead Developer and Director
🇬🇷Greek: native 🇬🇧English: excellent 🇫🇷French: basic • 🕐 My time zone is Europe / Athens
Please keep in mind my timezone and cultural differences when reading my replies. Thank you!