Hey, just thought I’d update on my experience. Wasn’t sure of integrating the new Subscriptions API for a long time into my headless build, but finally figured out the approach — you still need to use an app such as ReCharge or Bold Subscriptions (the Subscriptions API is open to app developers), then when you create subscription item in their service, the product and subscription details are available using the Storefront API. And you can have users check-out by using the new Cart API (in api version 2021-10). This dev doc is particularly helpful and took ages to find before I realised it was exactly what I needed — I don’t know about you, but especially to begin with the Shopify docs are almost cryptic and so hard to navigate.