Case Studies
Real projects, documented with starting point, solution and tech stack — filterable by technology, industry and service. From phase 4 on, each case study carries its own provenance from the content pipeline.
- Digital Identity
id-call: EUDI Verified Call as an app for iOS and Android
The verified video call as a native app: one Capacitor shell for both stores, with the web version pinned into every store build.
CapacitorTypeScriptWebRTCiOSAndroidView → - Science & Research
Lange Nacht der Astronomie: site for a nationwide event
A Drupal site for a nationwide night of astronomy: the programme of many observatories in one place, a participant directory and free livestreams.
DrupalPHPLivestreamingView → - Culture & Events
planetarium.berlin: website for Stiftung Planetarium Berlin
A Drupal platform for several venues: event data from the box office, group bookings, newsletters and a programme calendar — extended over years.
DrupalPHPBecker Billett TOPBrevoSOAPJSON:APIView → - Publishing & Media
Publishing platforms for Cicero and Monopol
Drupal platforms for two magazine brands: editorial workflows, search, shop, paywall and single sign-on — developed and continuously operated.
DrupalAlgoliaKeycloakAWSView → - Digital Identity
The EUDI Wallet in practice: Verified Call and wallet login
Two near-production EUDI Wallet applications: identity-verified video calls and passwordless wallet login — built before eIDAS 2.0 takes effect.
Node.jsWebRTCOpenID4VPSIOPv2DockerView → - Real Estate & Living
Website with apartment search for suite030
Drupal website for a Berlin provider of furnished living: property search with map integration, multilingual and editorially maintainable.
DrupalLeafletView → - Culture & Events
Ticketing platform for a multi-venue operator (proof of concept)
Feasibility study for ticketing on pretix: seat-map booking, quotas, box-office integration and foyer screens — demonstrated as a working prototype.
pretixVue.jsNode.jsTypeScriptView → - Product Development
BelegBot: AI-assisted receipt processing as our own product
An in-house product for automated receipt processing: submit receipts, extract data via LLM, validate and export — including an MCP interface.
Next.jsPrismaLLM-APIsMCPDockerView → - Legal & Compliance
Court-proof evidence preservation with qualified timestamps
Daily automated preservation of sensitive data sets with qualified eIDAS timestamps — unattended, fully logged and suitable as court evidence.
PHPMySQLRFC 3161View → - Urban Planning & Architecture
Website for Planergemeinschaft
Drupal website for a Berlin urban planning office: projects, topics and team presented in a structured way, with filterable overview pages.
DrupalView → - Public Sector
opendesk.eu: website for the digitally sovereign workplace
Multilingual website for openDesk, the sovereign workplace by ZenDiS — deliberately lean, built with Kirby CMS, no database and no tracking baggage.
Kirby CMSPHPTailwind CSSView → - Education & Counselling
Newsletter and seminar management for a training institute
Three interlocking applications for a training institute: newsletter delivery, campaign mailings and event management, all built on Laravel.
LaravelPHPDockerView → - Science & Research
Website for the NHR Alliance
Production Drupal website for Germany's National High-Performance Computing alliance: centres, services and news maintained in one place.
DrupalMatomoView → - Consumer Goods
B2B and consumer shop for Schindelhauer Bikes
E-commerce for a premium bicycle manufacturer: an OXID shop with B2B features, dealer login and post-purchase product registration for customers.
OXID eShopPHPAWS CognitoView → - Retail
Shopware shop for Sonnenberg Berlin
A Shopware-based online shop for Sonnenberg Berlin: product data, payment methods and shipping cleanly integrated, operations included.
ShopwarePHPView → - Publishing & Media
Publishing website for Philosophie Magazin
A Drupal-based magazine platform for Philosophie Magazin: editorial workflows, structured article delivery and continuous further development.
DrupalAMPBootstrapView → - Market Research
Corporate website for forsa
Relaunch of the corporate website of German polling institute forsa: Drupal with flexible content components and a custom responsive theme.
DrupalBootstrapView → - Retail
String set configurator for StringZone
A configurator for custom string sets: tension calculation with chart visualisation, Backpack admin back end and a direct handover into sales.
LaravelVue.jsInertia.jsamChartsView → - International Cooperation
Digital policy toolkits for GIZ
Interactive toolkits for international cooperation: decoupled Vue.js front ends on a shared Drupal back end with JSON:API content delivery.
Vue.jsDrupalJSON:APIDockerView → - Publishing & Media
Invitation management for a Berlin representative office
Campaign and invitation system for high-profile events: import guest lists, send personalised invitations and evaluate responses in a structured way.
CakePHPPHPPhpSpreadsheetView → - Public Sector
Citizen request management for the City of Düsseldorf
A request management tool for the state capital Düsseldorf: structured intake, processing and evaluation of citizen requests in one place.
LaravelReactTypeScriptPostgreSQLView → - Consumer Goods
POS configurator for a field sales force
A B2B tool for the field force: configure shelving and POS materials visually in the browser and order them directly for individual locations.
Vue.jsFabric.jsDrupalOAuth 2.0View → - Publishing & Media
Cicero+ app: subscription content for iOS and Android
A mobile app for magazine subscribers: every article ad-free on phone and tablet, built from a single codebase for both app stores.
IonicAngularTypeScriptiOSAndroidView → - Consumer Goods
Product personalisation by engraving at the point of sale
A web application for personalising products by engraving at promotions and POS — including control of the on-site engraving hardware.
JavaScriptHardware-IntegrationView → - International Cooperation
Unidas: community platform for an international network
An Open Social community for around 1,000 members across Latin America, the Caribbean and Germany — accessible to the German BITV 2.0 standard.
Open SocialDrupalBITV 2.0Project ShieldView → - Venture Capital
coparion: website for a venture capital fund, run since 2016
A bilingual Drupal site for a VC fund: portfolio, news, team and vacancies editable in the CMS — built and continuously maintained since 2016.
DrupalPHPView →
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