Create a file named .env.local in the root of your project with the following content:
NEXT_PUBLIC_SUPABASE_URL=https://nvmtjzdgpwwgfkxitcvs.supabase.co
NEXT_PUBLIC_SUPABASE_ANON_KEY=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJzdXBhYmFzZSIsInJlZiI6Im52bXRqemRncHd3Z2ZreGl0Y3ZzIiwicm9sZSI6ImFub24iLCJpYXQiOjE3NDY4MjYxNTAsImV4cCI6MjA2MjQwMjE1MH0._z_unZwNEsDif3f_Dbx-AkaS3tqanDjwhvAqovEtF-8
After creating this file, restart your development server for the changes to take effect.