What you buy, and how to get your money back

Zollwerk is a starter kit: source code, configuration, database migrations, tests and documentation for running AI-backed SaaS in the European Union. What is sold is permanent access to that source code through a private repository, plus the licence described under § 6.

The scope owed is whatever the product description and the linked specification state at the time you buy. Public remarks about planned features are not an agreed quality.

• No support obligation. No consulting, setup, training, adaptation to your environment, or debugging of your code. We may well answer questions — but there is no promised response time and no entitlement to one.
• No hosted service and therefore no SLA. Zollwerk is built to be self-hosted. There is nothing for us to keep up, so there is no availability, response or recovery commitment.
• No legal outcome. See § 14 below.

Using the kit needs a command line, a git repository and a container runtime on a server. It is not a no-code product.

The price shown at the time of your order applies. The pre-sale price applies to the limited number of seats stated on the site; after that the published later prices apply.

All prices are final prices. Under the German small-business rule (§ 19 UStG) no VAT is charged and none is shown on invoices. You therefore cannot deduct input VAT from our invoices. Any import, acquisition or consumption tax in your own country, and any card-issuer fees, are yours.

Payment is due on conclusion of the contract, through the payment methods offered at checkout. Invoices are provided electronically.

Delivery is in September 2026. The commitment is to the month, not to a specific day. Delivery means we invite the GitHub account you give us to a private repository as a collaborator; there is no physical medium and no download shop.

If we have not delivered by the end of 30 September 2026 you can set us a reasonable further period and, if that passes without delivery, withdraw from the contract and get everything back. If we find we cannot deliver at all, we say so and refund in full without waiting to be asked.

One developer, unlimited projects. The licence is personal: it entitles exactly one natural person to use the source code. That person may use it in any number of projects — their own products and client work alike, commercially, with no cap on projects, revenue or end users.

You may change and extend the code however you like, run the resulting applications anywhere including for third parties, hand the resulting application over to a client as part of a project, and keep private backups and mirrors.

You may not pass on, sell, rent or sublicense the kit itself — modified or not, paid or free; publish it or substantial parts of it, including in a public repository, a package registry or a training set; share your repository access with people the licence does not cover; use it to build a competing starter kit, template or boilerplate; or strip copyright and origin notices.

Repository access is not time-limited. As long as the product is maintained, later versions arrive through the same access at no further charge — technically, by pulling from the upstream repository.

There is no entitlement to a particular release cadence, to any specific future feature, or to future versions remaining compatible with your own modifications. The statutory update duty towards consumers under §§ 327 ff. BGB is unaffected. If maintenance ever stops, we say so and keep the last maintained state available for a reasonable period.

Consumers have 14 days to withdraw from the contract without giving reasons, counted from the day the contract is concluded. The operative instruction, in the form German law prescribes, is § 8 of the AGB, together with the model withdrawal form. Sending the notice before the period expires is enough; we refund within 14 days by the same means you paid. Businesses (§ 14 BGB) have no right of withdrawal.

Because this is digital content not supplied on a physical medium, the right of withdrawal can lapse early under § 356(5) BGB — but only once all three of these have happened:

1. you expressly asked us to begin performance before the period ends,
2. you confirmed you understand that doing so costs you the right of withdrawal, and
3. we gave you the confirmation of contract required by § 312f BGB.

This is a contractual promise on top of the law. It applies to consumers and businesses alike, and it restricts none of your statutory rights — the right of withdrawal under § 8 and the warranty rights under § 11 are untouched.

After delivery the promise no longer applies; from then on the position is governed by the right of withdrawal (which may have lapsed under § 9) and by the statutory warranty.

Statutory warranty applies, including §§ 327–327u BGB for consumer contracts about digital products. We give no guarantee in the legal sense; statements in the product description are descriptions of quality, not guarantees. Towards businesses the limitation period is one year from delivery; towards consumers the statutory periods apply.

Liability is customary for a digital good: unlimited for intent and gross negligence, for injury to life, body or health, for fraudulently concealed defects, for guarantees and under the Product Liability Act. For ordinary negligence we are liable only where a cardinal obligation is breached — one whose fulfilment makes proper performance possible in the first place and on which you may routinely rely — and then only up to the foreseeable damage typical for this kind of contract. Otherwise liability for ordinary negligence is excluded, in particular for lost profit, lost savings and business interruption. For data loss, liability is limited to the cost of restoring from a proper, regular backup.

None of this shifts the burden of proof against you, and mandatory consumer protection rules are unaffected.

We do not represent that a product built with Zollwerk satisfies any regulator, meets the requirements of the AI Act or the GDPR, or is safe from challenge. Nothing here has been examined or attested by any body, and § 14 of the AGB says so in the contract itself: if wording anywhere else could be read that way, that clause prevails.

Responsibility stays with you for assessing your own legal position, selecting and configuring models and providers, concluding the processing agreements you need, carrying out data protection impact assessments, and meeting transparency and marking duties towards your own users. Templates in the documentation are samples that have not been reviewed for your case; have them checked before you use them.

German law applies, excluding the UN Convention on Contracts for the International Sale of Goods. If you are a consumer resident elsewhere, the mandatory protections of your own country’s law still apply (Art. 6(2) Rome I). We are neither willing nor obliged to take part in consumer arbitration proceedings (§ 36(1)(1) VSBG); the European Commission’s ODR platform was shut down on 20 July 2025.