Magento Themes re-imagined.
Hyvä themes is a brand-new frontend for Magento 2 with the best DevExperience, Performance and Time to Market.
Although Hyvä Checkout is still a work in progress, we've open sourced it on Github.
Hyvä Checkout is built with ReactJS and works with Hyvä Themes, standard Magento 2 Themes and even Magento's PWA Studio.
Hyvä Admin aims to make creating grids and forms in the Magento 2 adminhtml area joyful and fast.
It does not use any UI components - and it's free.