To mint NFTs triggered by Trello card creations:
1. Set up an NMKR account for Cardano NFT minting.
2. Create a Zapier account if needed.
3. Start a new Zap in Zapier.
4. Choose Trello as the trigger app and select 'New Card' as the event.
5. Connect your Trello account to Zapier.
6. Configure the NMKR action in Zapier, linking it to your NMKR account.
7. Set up the NFT minting details, using Trello card data for NFT attributes.
8. Test and activate the Zap.
Now, each new Trello card created will automatically trigger an NFT mint through NMKR.