After you have downloaded the SAAS Starter kit package, thare are some initial installation instructions on how to set it up.
After you have downloaded the package, there is a command that you can run that installs the dependencies and create and migrates the database:
mix setup
However, there are some, not much, frontend assets to install as well. Mainy AlpineJS and DaisyUI.
Install assets with
cd assets && yarn install