Every indie dev selling a digital product eventually hits the same wall: you're manually emailing files, sharing one download link that gets reposted in a Discord within a week, or paying a cut of every single sale to a platform that handles fulfillment for you.

I got tired of that math. Here's the breakdown of what "owning your delivery" actually requires, because most guides skip the boring parts:

The 3 pieces you actually need:

1. Delivery — expiring links + download-count limits so one purchase doesn't become unlimited redistribution.

2. Licensing — a key issuance + validation layer with device binding, so you can revoke access without refunding.

3. Fulfillment glue — the webhook logic that turns "payment received" into "customer has access" with zero manual steps.

Most sellers bolt these together with Zapier and duct tape, or skip licensing entirely and eat the piracy losses. It works self-hosted on a $5-10/mo VPS with Docker — the setup is genuinely under an hour if your DNS is ready before you start (that's the #1 thing that stalls people, SSL issuance waiting on propagation).

If you're building a software or digital-product business and haven't separated these three concerns yet, it's worth doing before you scale — retrofitting licensing onto an existing customer base is way more painful than launching with it.

Happy to answer questions on Docker setup, webhook patterns, or license architecture in the comments.