Add the setup helper tools

admin/create-product.sh

+#!/usr/bin/env bash
+
+set -euo pipefail
+
+KEY=$1
+shift
+
+curl https://api.stripe.com/v1/products \
+  -u "${KEY}:" \
+  -d "name=30 GiB-months" \
+  -d "description=30 GiB-months of Private.Storage storage × time" \
+  -d "default_price_data[currency]=USD" \
+  -d "default_price_data[unit_amount]=650" \
+  -d "default_price_data[tax_behavior]=exclusive" \
+  -d "statement_descriptor=PRIVATE STORAGE" \
+  -d "url=https://private.storage/"

admin/create-webhook.sh

+#!/usr/bin/env bash
+
+set -euo pipefail
+
+KEY=$1
+shift
+
+DOMAIN=$1
+shift
+
+curl \
+    https://api.stripe.com/v1/webhook_endpoints \
+    -u "${KEY}:" \
+    -d url="https://payments.${DOMAIN}/v1/stripe/webhook" \
+    -d "enabled_events[]"="checkout.session.completed"