Can Sellfy be vibe coded?
Sell digital files and simple subscriptions from a user-owned storefront
The core loop is buildable, but a dependable replacement becomes a substantially larger project. For Sellfy, sell digital files and simple subscriptions from a user-owned storefront. The hard boundary is payments, hosted delivery, email, print-on-demand, upsells, and support, plus payments, tax, distribution, and operations.
Jump to the build brief ↓Checked Jul 2026
What you pay today, before any DIY hosting
medium editorial confidence
Buildability by layer
Screens, forms, and focused interactions
The repeatable job the product performs
Availability and legality of required data
Uptime, queues, support, and maintenance
Security, compliance, and user confidence
The achievable core
- Sell a small catalog of digital files and simple subscriptions from a user-owned storefront, deliver purchased files, and manage customers.
- Build a focused single-user workflow with real persistence, search, and export.
- A responsive interface with real empty, loading, success, and error states.
The parts a prompt cannot buy
- payments, hosted delivery, email, print-on-demand, upsells, and support
- marketplace discovery
- tax remittance
- fraud operations
- Compliance, licensing, and legal accountability are core features.
- Reliability at the vendor's scale is an operations problem, not a prompt.
Why people still pay
People still pay for Sellfy because creators pay to outsource the dangerous and tedious parts around money, delivery, tax, and customer access. The recurring cost buys checkout, webhooks, tax, refunds, fraud, entitlements, storage, email, accessibility, backups, and customer support, not just the visible interface.
Compliance, licensing, and legal accountability are core features.
Reliability at the vendor's scale is an operations problem, not a prompt.
The brief
Context, requirements, acceptance criteria, non-goals, and the full production standard — as Markdown, ready for any coding agent.
Build brief — a focused alternative to Sellfy
Context
**Sellfy** — Sell digital files and simple subscriptions from a user-owned storefront. It currently costs $29/mo.
The core loop is buildable, but a dependable replacement becomes a substantially larger project. For Sellfy, sell digital files and simple subscriptions from a user-owned storefront. The hard boundary is payments, hosted delivery, email, print-on-demand, upsells, and support, plus payments, tax, distribution, and operations.
This brief describes a focused, single-operator replacement for the part of Sellfy that is genuinely reproducible. It is deliberately narrower than the product it replaces, and it says so in writing. Build the useful core; do not pretend to have rebuilt the rest.
What you are building
Sell a small catalog of digital files and simple subscriptions from a user-owned storefront, deliver purchased files, and manage customers.
Build a focused single-user workflow with real persistence, search, and export.
A responsive interface with real empty, loading, success, and error states.
Requirements
Functional
Stripe account.
PostgreSQL.
S3-compatible storage.
Public HTTPS deployment.
Email provider.
Non-functional
Accessibility: semantic markup, labelled controls, visible focus, and reduced-motion support.
Security: server-side secrets, validated input, and no credentials in the client bundle.
Reliability: retries with backoff on external calls, and a clear failure state when a provider is down.
Portability: the operator can export their data and leave without losing it.
Implementation brief
Build a personal replacement for Sellfy in an empty repository.
Use Next.js 15, TypeScript, PostgreSQL, Drizzle ORM, Stripe Checkout, and S3-compatible storage; do not offer alternative stacks.
The core loop is: sell a small catalog of digital files and simple subscriptions from a user-owned storefront, deliver purchased files, and manage customers.
Make the first run work locally with one documented command.
Store all user data locally by default and make export straightforward.
Put secrets in .env, ship .env.example, and never commit credentials.
Implement products, variants, prices, files or lessons, coupons, customers, orders, and entitlements.
Use Stripe-hosted Checkout and verify every webhook signature and idempotency key.
Grant access only after confirmed payment and revoke it on refund or chargeback.
Create a customer library with signed short-lived download or lesson URLs.
Add order search, resend receipt, refund handoff, export, and an immutable event log.
Document taxes as the creator's responsibility and do not calculate unsupported jurisdictions.
Include clear empty, loading, success, and recoverable error states.
Add input validation, safe filenames, and graceful handling of unavailable APIs.
Write focused tests for the core transformation and one end-to-end happy path.
Create a README with setup, architecture, permissions, data location, and backup steps.
Do not add accounts, billing, telemetry, analytics, or a hosted control plane.
Deliberately leave out merchant-of-record tax remittance.
Deliberately leave out a buyer marketplace or affiliate network.
Deliberately leave out advanced communities, certificates, mobile apps, and enterprise learning features.
Finish by running the tests and listing the exact commands used.
Delivery standard
Inspect the repository first, then write a short implementation plan before writing code.
Deliver the smallest complete end-to-end workflow first; every primary control must work against persisted data.
Use real validation and storage; never substitute fake dashboards, decorative controls, hard-coded success states, or mock integrations.
Include responsive layouts plus genuine empty, loading, success, validation, and failure states.
Keep secrets server-side in environment variables, provide .env.example, and never commit credentials or user data.
Add structured logs around every external call and return actionable errors without leaking sensitive details.
Write unit tests for the core logic and one automated test of the main user journey.
Finish with a README covering setup, architecture, data location, backups, tests, deployment, and known limitations.
Acceptance criteria
A clean install starts the app using only the README and .env.example.
The primary journey works from first visit through saved result, reload, edit, export, and deletion where applicable.
Invalid input, missing configuration, provider failure, and an empty database each have a usable state.
The interface works at 390px and 1440px, is keyboard navigable, and shows visible focus on every control.
Tests, type checking, linting, and a production build all pass with no ignored failures.
No part of the interface implies a live integration, security guarantee, or scale capability that was not actually built and verified.
Non-goals
Do not build these, and do not claim to have replaced them:
Payments, hosted delivery, email, print-on-demand, upsells, and support.
Marketplace discovery.
Tax remittance.
Fraud operations.
Compliance, licensing, and legal accountability are core features.
Reliability at the vendor's scale is an operations problem, not a prompt.
What you still own after launch
Run migrations, backups, restores, and dependency updates.
Test the critical journey after every model, API, or hosting change.
Monitor failures and fix the edge cases a first prompt will miss.
Risk
**High consequence.** Use this as a prototype or personal aid. Keep a qualified human and an established provider in the loop for consequential decisions.
Editorial confidence in this assessment: medium. No independent one-shot implementation is linked yet.
Prior art
Working open-source software you can read, fork, or borrow from before starting:
[Medusa](https://github.com/medusajs/medusa) — Active open-source commerce platform with modular checkout and fulfillment primitives
Generated by [Can It Be Vibe Coded?](https://www.canitbevibecoded.com) · Full report: https://www.canitbevibecoded.com/sellfy
You still own the product
- Run migrations, backups, restores, and dependency updates.
- Test the critical journey after every model, API, or hosting change.
- Monitor failures and fix the edge cases a first prompt will miss.
Open-source prior art
Before you start
Can Sellfy be vibe coded?
Partly, if you narrow it. The core loop is buildable, but a dependable replacement becomes a substantially larger project. For Sellfy, sell digital files and simple subscriptions from a user-owned storefront. The hard boundary is payments, hosted delivery, email, print-on-demand, upsells, and support, plus payments, tax, distribution, and operations.
What can an AI coding agent reproduce from Sellfy?
Sell a small catalog of digital files and simple subscriptions from a user-owned storefront, deliver purchased files, and manage customers. Build a focused single-user workflow with real persistence, search, and export. A responsive interface with real empty, loading, success, and error states.
What will a DIY Sellfy replacement still be missing?
payments, hosted delivery, email, print-on-demand, upsells, and support; marketplace discovery; tax remittance; fraud operations; Compliance, licensing, and legal accountability are core features.; Reliability at the vendor's scale is an operations problem, not a prompt.
What do I still own after building a Sellfy alternative?
Run migrations, backups, restores, and dependency updates. Test the critical journey after every model, API, or hosting change. Monitor failures and fix the edge cases a first prompt will miss.