curiOS v25.06.0

 - Buildroot v25.02.3
 - Refactored nftables container, now with BusyBox tools

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

board/system: add support for an optional /etc/rc.local

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

buildroot: bump from v2023.02 LTS -> v2024.02 LTS (kkit)

This upgrades the base Buildroot to the latest LTS, v2024.02, with
the latest KernelKit fixes, including latest Netopeer2.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

.github: include license file in tarballs

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

board/system: allow password-less login to system container

This is a demo container after all.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

buildroot: base on v2023.02.6 (LTS)

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

Turn on compiler cache

This toolchain is used to re-compile components in the fastest manner,
yet previously the compiler cache was not enabled.

ALL HAIL OUR BUILDROOT OVERLORDS!!

Thus begins the root of our build farm.