App Studio comes with a trial license file, located at
app-studio/twigkit.lic. This trial license is valid for 30 days. Contact Lucidworks to obtain a commercial license.
To install a commercial license, copy the new license file to
app-studio/twigkit.lic, overwriting the trial license. Commercial licenses support multiple instances of App Studio. Lucidworks issues a separate license for each App Studio instance.