To help you setup your own child-theme, we supply some parent themes for you to work with. Because JavaScript replacements belong to the LokiTheme_LumaComponents module, these themes are mostly about how to deal with CSS.
Loki/lumaThe theme Loki/luma extends upon the Magento/luma theme, keeping the styling via LESS files but removing all JavaScript. It contains a couple of hacks in CSS to make things work. Most likely you will not want to extend from it, but simply copy from it if needed.
composer require loki-theme/magento2-theme-luma
Repository: https://github.com/LokiExtensions/loki-theme-luma
Loki/fylgjaThe theme Loki/fylgja has no parent (except that it is inheriting from Magento modules, as Magento/blank is doing as well) and is intended to be used together with Fylgja. This is still highly experimental.
composer require loki-theme/magento2-theme-fylgja
Repository: https://github.com/LokiExtensions/loki-theme-fylgja
Loki/tailwindThe theme Loki/fylgja extends upon the Magento/blank theme and is intended to be used together with TailwindCSS. This is still highly experimental.
composer require loki-theme/magento2-theme-tailwind
Repository: https://github.com/LokiExtensions/loki-theme-tailwind
Loki/uikitThe theme Loki/uikit extends upon the Magento/blank theme and is intended to be used together with UIkit. This is still highly experimental.
composer require loki-theme/magento2-theme-uikit
Repository: https://github.com/LokiExtensions/loki-theme-uikit