Add your env secretes

.env_example
PRIVATE_STRIPE_SECRETE_KEY = your_PRIVATE_STRIPE_SECRETE_KEY
PRIVATE_STRIPE_API_SVELTEKIT_ENPOINT_KEY = your_PRIVATE_STRIPE_API_SVELTEKIT_ENPOINT_KEY
PRIVATE_RPC_DELETE_USER = your_PRIVATE_STRIPE_API_SVELTEKIT_ENPOINT_KEY
PRIVATE_RPC_STRIPE_CUSTOMER_TO_USER_PROFILE = your_PRIVATE_STRIPE_API_SVELTEKIT_ENPOINT_KEY
PRIVATE_STRIPE_API_STRIPE_CUSTOMER_WEBHOOK_SIGNING_SECRET = your_PRIVATE_STRIPE_API_SVELTEKIT_ENPOINT_KEY

.env.local_example
PUBLIC_SUPABASE_URL = your_PUBLIC_SUPABASE_URL
PUBLIC_SUPABASE_ANON_KEY = your_PUBLIC_SUPABASE_URL
PUBLIC_STRIPE_PUBLISHABLE_KEY = your_PUBLIC_SUPABASE_URL\

Set up Supabase and Stripe

To set up Supabase and Stripe }especially profile table, webhooks etc.) you may follow this tutorial made by Supabase lector: https://egghead.io/lessons/next-js-charge-customer-for-stripe-subscription-in-next-js