As far as I know, the OpenWrt core doesn’t support this feature. We could potentially implement something, but so far, no one has requested it. However, we are considering a solution involving “template installations,” which could be useful for managing multiple machines with similar configurations. This would likely be handled by the controller, but I’m not sure if this feature will ever be implemented.
A question hiding a hint: does OpenWRT write network configuration on a single file?
Maybe after the image deployment this file could be overwritten by the output of a simple multi-step request via terminal. Most the configuration is managed via web interface, so the configuration delivery to the system could be possible also after the image write to the storage…
Other projects allow a complete network adapter reconfiguration via terminal, at least at installation network adapter and green bridge IP might be a real gamechanger for the ease of setup.