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. Delivery is a versioned release archive of Zollwerk source and buyer documentation. A private repository may supply updates only while the customer has an update entitlement.

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.

Up to 60 minutes total of asynchronous help for the documented, unmodified reference installation may be requested within 30 days after delivery. Reproducible bug reports are triaged separately without a response or fix SLA.

• Beyond bounded setup help. No calls, training, custom code, migration, operation or debugging of your modifications are included. There is no promised response or fix time for bug reports.
• 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 proposed founding price applies to the first 20completed purchases under the new offer; the standard price follows. The total displayed at checkout governs. No remaining allocation is claimed.

Before activation: the seller must confirm tax status, tax treatment and invoice wording. This draft makes no tax assertion. Checkout and confirmation must show the actual total and applicable tax information before an order can be placed.

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

Before activation: checkout and confirmation must state a delivery deadline or period. Delivery means sending an accessible download route for a complete versioned release archive to the order email. An optional private repository is only a means of supplying entitled updates.

If we have not delivered within the confirmed period 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 named developer, unlimited own products. The licence is personal to one natural person. They may use delivered code in products they own and control, personally or through a company they control, with no cap on end users. Client work and source transfer need a separate written licence.

You may change and extend the code however you like, run their own resulting applications anywhere, keep private backups, and use private coding assistants, CI and hosting providers whose terms protect source confidentiality and prohibit training or publication of the source.

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.

Standard releases are available for 12 months from delivery. Access to later releases and any optional repository ends after that period. You retain delivered archives and may continue using those versions.

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. Keep your own copies of delivered releases.

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 voluntary refund payment, the paid licence ends. Proprietary source copies must be deleted and new deployments stopped, subject to mandatory law. A live service has 30 days to migrate existing operation and its own data, with no new users or features during that period. Independently authored material and customer data remain yours.

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.