JUCI Backend Server is distributed under GNU GPLv3 with additional permissions
(as defined in section 7 of GNU GPLv3) specified below. 

(a) You are hereby allowed to include this software into signed firmware images
which are based on OpenWRT linux distribution and which run on embedded systems
without having to reveal specific signing keys in accordance with GPLv3 section
3 (Protecting Users' Legal Rights From Anti-Circumvention Law) in order to
allow execution of modified versions of this software on such devices.