external_project = import('unstable-external_project') external_project.add_project( configure_zephyr, configure_options: [ '--source-tree', bootloader_firmware, '--build-tree', meson.current_build_dir() / 'build', '--board', board, '--zephyr-base', zephyr, '--zephyr-modules', ';'.join(zephyr_modules), '--extra-config', meson.current_source_dir() / 'bootloader.conf', '--signing-key', signing_key, ], verbose: true, ) bootloader = custom_target('bootloader', output: ['bootloader.bin'], command: [ build_zephyr, '--build-tree', meson.current_build_dir() / 'build', '--binary-name', 'zephyr.bin', '--target-name', 'bootloader.bin', ], build_by_default: true, install: true, install_dir: 'website/static', )