Instead of starting from a pre-made template, you can create a new empty Airtable base and add fields and data as you go.
Start by tapping the "New base" row in the team to which you'd like to add the base:
You'll be presented with the "new base" dialog, which gives you the option of creating a new empty base or starting from an existing template. Here, you'll select "Create a new empty base" at the top:
Next, you'll name your base:
And you're all set! From here, you can start adding records, customizing fields, and adding collaborators.