New features

Initial release only layout management

Button updates

Adding multiple configuration capabilities & event triggering to be able to select the one best suited

Issue #3137624 by extralooping: Allow replacing individual keys
Issue #3120756 by Suresh Prabhu Parkala: file_scan_directory() is deprecated and drupal 9 compatibility
Issue #3128240 by amateescu: Don't try to rewrite config if the site is being installed from existing configuration
Issue #3099765 ignore the /vendor dir
Issue #3099765 adds composer.json file
Issue #3099765 adding PHP minimum version specification to the info file

First release
Ready for Drupal 9

Support for Drupal 8.8 and 9