The "Features" page is the worst performing web page I have seen in a long time. Loading 14+ MB worth of images, spending over 11 seconds on loading fonts, loading the same script multiple times. All that for just a static web page with some video embeds and a comment section is quite astounding to be honest. Makes me not want to check out their product.
Kickstart.nvim [1] is a good starting point. One big Lua file which gets you 90% there and shows what’s possible while making it easy to change/add stuff and getting started doing your own config.