Install laravel cashier first, and run migrations. Download and copy to laravel application directory. For local domain app.xx enable https on server (for stripejs).
stripe listen
.env
STRIPE_KEY=
STRIPE_SECRET=
STRIPE_WEBHOOK_SECRET=
CASHIER_CURRENCY=pln
CASHIER_CURRENCY_LOCALE=pl_PL
https://dashboard.stripe.com/test/webhooks
<?php
// Webhook url return http tatus 200 for tests
// https://example.com/stripe/webhook.php
echo "OK";
/routes/stripe/routes.php
/stripe/custom-payment
/stripe/custom-payment/capture/{pi_3PFM...}
/stripe/charge
/stripe/charge
/checkout