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A new build starts every Tuesday.

Not-list

What we don't do. So you know where you stand.

This list applies to every build. A build brief can add to it, never take anything off.

What a build does not do, by code
CodeWhat we don't do
N1Building on any stack but ours.
N4Migrating messy data. We import one clean file: one row per record, named columns, no clean-up by us.
N5Receiving, holding or paying out other people's money, such as marketplaces, escrow and payouts. Payments to you through one payment provider are fine; that is your integration.
N6Software in a regulated domain. The domains are listed below, each with its law.
N7AI practices the AI Act prohibits.
N8Trade in weapons or ammunition.
N9Bulk mail or scraping. We send no advertising to people who did not ask for it, and take no data from other people's sites.
N10Writing copy, taking photos or designing logos. You supply them; we build the app around them.
N11Support for your own users. We help your organisation, through the platform.

Last reviewed on Friday 2 October.

Regulated domains

We don't build software whose core process falls in one of these domains (N6). It is about the process, not your sector: a bank's room booking falls in no domain.

Regulated domains, with the question the fit check asks and the law
CodeDomainThe fit check asksLaw
D1Medical devicesDoes the app make a diagnosis, predict or monitor a disease, or steer a treatment?Regulation (EU) 2017/745 (MDR); Regulation (EU) 2017/746 (IVDR)
D2Financial and payment servicesDoes the app receive, hold or pay out other people's money, or advise on or broker credit, insurance or investments?Wet op het financieel toezicht (BWBR0020368); Directive (EU) 2015/2366 (PSD2)
D3Crypto-assetsDoes the app hold, exchange or trade crypto for others?Regulation (EU) 2023/1114 (MiCA)
D4GamblingCan a user stake something to win a prize, with chance deciding the outcome?Wet op de kansspelen (BWBR0002469)
D5The medical recordDoes a care provider keep a patient's record in the app?BW Boek 7, afdeling 7.7.5, WGBO (BWBR0005290); NEN 7510
D6Qualified trust servicesDoes the app provide qualified signatures, seals, time stamps or certificates, or is it an identity wallet?Regulation (EU) 910/2014 (eIDAS), as amended by Regulation (EU) 2024/1183
D7Notarial and bailiff deedsDoes the app draw up a deed the law reserves for a civil-law notary or a bailiff?Wet op het notarisambt (BWBR0010388); Gerechtsdeurwaarderswet (BWBR0012197)
D8MedicinesDoes the app sell, supply or prescribe medicines?Geneesmiddelenwet (BWBR0021505)
D9Statutory electionsDoes the app cast or count votes in an election the Kieswet governs?Kieswet (BWBR0004627)
D10High-risk AIDoes the app use AI to decide or advise about people in an area listed in Annex III (such as work, education, credit or access to essential services)?Regulation (EU) 2024/1689 (AI Act), art. 6 and Annex III
D11TelecommunicationsIs calling or messaging between users the service itself, rather than a feature of something else?Telecommunicatiewet (BWBR0009950); Directive (EU) 2018/1972 (EECC)

Every source was last checked on Tuesday 29 September.