Generate developer Tailwindcss build:

bunx tailwindcss@experimental -i tailwind.css -o build.css

This will produce all classes used by Tailwindcss.

Generate production Tailwindcss build:

cat tailwind.css custom.css > tailwind.temp.css bunx tailwindcss@experimental -i tailwind.temp.css -o build.css -m

This will produce classes only used in code (files are specified in ./tailwind.config.js) and minify the resulting css.