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Eight clear offerings.

No "let's discuss scope". Every offering has a price range, a duration and a list of deliverables. All prices net (ex VAT). Payment terms: 14 days, 50% at project start.

#01 3-5 weeks

Hand-crafted Website

Astro, Eleventy or Payload CMS — no WordPress, no Wix, no builder. For clients who want quality, performance and GDPR-compliance rather than templated sameness. Honestly priced as an entry offering.

Includes
  • Design workshop + moodboard (no generic AI layouts)
  • Up to 6 custom pages + CMS if needed
  • Self-hosted fonts (no Google Fonts CDN)
  • Plausible or no analytics (cookieless, GDPR)
  • Imprint + privacy (template + eRecht24 recommendation)
  • Performance budget: LCP < 1.5s, Lighthouse SEO 100/100
  • 6 months of minor adjustments (< 2h/month) included
  • Optional: managed hosting from €19/month
Ideal for: Law firms, medical practices, cultural institutions, consulting boutiques, trade businesses and tech-adjacent companies that need a representative website with a clear brand posture.
#02 🌟 Recommended 4-8 weeks

Sovereign AI Integration

On-prem LLMs instead of OpenAI API. Vector search with Qdrant instead of Pinecone. RAG on your own documents — with full control over model and data. Honest entry pricing.

Includes
  • On-prem setup with Ollama or vLLM (Llama 3.3, Mistral, Qwen — your choice)
  • Vector database (Qdrant) with embedding pipeline
  • RAG system over your documents (PDF, Word, Confluence, Sharepoint)
  • Prompt engineering + eval suite with your use cases
  • Streamlit/React UI or API endpoint
  • Deployment documentation + runbook for model updates
  • Optional: Unsloth fine-tuning on your domain
Ideal for: Mid-market firms, law firms, medical practices and public-sector organizations that want AI features — without sending patient records, case files or trade secrets to US cloud APIs.
#03 🌟 Recommended 3-10 weeks

Mobile App (iOS + Android)

A branded app for iOS and Android from one codebase — Flutter, connected to your backend or an existing API (Crewmeister, Personio, your own). GDPR data residency in the EU, CI/CD included, store submission optional.

Includes
  • Flutter cross-platform (iOS + Android from one codebase)
  • Native modules where needed (camera, Bluetooth/BLE, biometrics, NFC)
  • Backend integration: in-house, your server, or third-party API (Crewmeister, Personio, custom REST)
  • GDPR-compliant data residency (EU hosting, no US cloud)
  • Company branding: logo, colors, typography, app icon, launch screen
  • Offline capability with SQLite + sync strategy
  • CI/CD with Fastlane (TestFlight + Play Internal Testing)
  • Self-hosted crash monitoring (Sentry) — no third-party telemetry
  • Optional: store submission (Apple Developer + Google Play Console)
  • Deployment runbook and handover documentation
Ideal for: Mid-market firms with an existing backend that need a branded app — without agency overhead. Law firms and medical practices with client/patient communication. Time-tracking and field-ops tools (Crewmeister/Personio API or own backend). Associations with member apps.
#04 🌟 Recommended 1-10 weeks

AI Finance Check for Families & Households

PSD2 banking + local AI analysis for families. Family package from €490, managed from €990. Subscription audit, cashflow, categorization — hosted in Germany. Professional variants (tax advisor/SME/bank OEM) from €4,900. Not investment advice.

Includes
  • PSD2 AISP connection (Enable Banking API or finAPI)
  • Consent management per PSD2 standards with expiry + revocation
  • Encrypted storage of sensitive data (IBAN, holder, remittance info)
  • Automatic transaction categorization (rules + local AI)
  • Subscription audit: detect and visualize recurring payments
  • Cashflow dashboards with monthly and yearly trends
  • Chat interface: 'show me subscriptions I haven't used in 6 months'
  • Export functions for tax advisors (CSV, DATEV format optional)
  • 100% GDPR-compliant — hosted in Germany, no US cloud
Ideal for: Families and couples wanting transparency over shared expenses without uploading their accounts to commercial cloud apps. Plus: tax advisor firms, SME bookkeeping, cooperative banks as white-label base.
#05 🌟 Recommended 1 day to 6 weeks

Cloud-Exit & Data Sovereignty

Out of US cloud services — into your own EU-hosted solutions. Three packages for families and solo-self-employed (from €290). Professional variants for law firms, teams and full stacks from €2,900 — see package overview below.

Includes
  • Audit of your current cloud dependencies (inventory per service and data class)
  • Mapping proposal: which US cloud service is replaced by which EU/open-source solution
  • Setup on Hetzner server (or existing infrastructure) — Immich, Nextcloud, Matrix, mail accounts
  • Encrypted daily backups (restic) on a separate Storage Box
  • Migration support: photo import from Google/iCloud, file sync, calendar takeover
  • Staff or family onboarding (half-day), self-application instructions
  • Optional: managed hosting with updates and health monitoring
Ideal for: Tech-savvy families and individuals, privacy-sensitive professions (law firms, medical practices, therapists), foundations and associations with own member management, SMEs with compliance requirements or simply unease towards US Big Tech.
#06 5-8 weeks

Web Portal / SaaS MVP

From domain workshop to production launch. Django or Node, Postgres, Hetzner. Real workflows for real users — not a perpetual prototype loop. Including GDPR-safe deployment.

Includes
  • Domain model + DB schema developed with you
  • Auth system (roles, permissions, optional SSO via Keycloak)
  • Responsive UI (desktop + tablet, mobile if needed)
  • PDF or Excel export where sensible
  • Email workflows (notifications, digests)
  • Audit log for compliance
  • Monitoring + backup strategy
  • Deployment on Hetzner with Caddy — GDPR-safe
  • User documentation in German
Ideal for: Foundations, professional associations, law firms and mid-market firms with a clearly scoped internal tool or customer portal need. Not enterprise-complex projects — manageable scope.
#07 3 days – 8 weeks

Legacy Modernization

Replace outdated software — rebuild instead of endlessly patching. VB6, old PHP, MS Access, Delphi, early C#. Years of C#/C++ history meet modern stacks (Django, Go, Postgres). Honestly priced audit entry point.

Includes
  • Inventory: language, dependencies, data schema, build chain
  • Risk analysis: library EOL, security CVEs, compliance gaps
  • Migration plan with milestones and decision points
  • Parallel-operation strategy (old + new running simultaneously during migration)
  • Data migration incl. integrity validation
  • Training on the new system
  • Optional: read-only archive of the old system for audit needs
  • For full rebuild: modern stack (Django/Go + Postgres) with tests, CI/CD, documentation
Ideal for: Mid-market firms with self-developed legacy software from the 1990s/2000s (often VB6, C#, MS Access, old PHP, Delphi), either losing the staff who still know it or facing compliance pressure (GDPR, NIS2). Also: companies after M&A with heterogeneous old stacks.
#08 🌟 Recommended 6-month minimum

Engineering on Retainer

Fixed days per month, direct Slack and email line, predictable spend. For existing clients or new partners that need continuous engineering capacity — without hiring full-time.

Includes
  • 1, 2 or 3 working days per month — planned and reserved ahead
  • Direct contact via Slack / email (< 24h response on business days)
  • Monthly status review (30 min)
  • Unused hours carry up to 50% into the following month
  • Priority slot: new projects get queued behind you
  • Fixed day rates for the entire term (6-12 months)
  • Optional: NDA + DPA templates
Ideal for: Companies with a production system that needs ongoing care, new features or the occasional firefighter stint. Also for agencies that want a reliable backend engineer on tap.
06 / Contact

Let’s talk.

Three channels, one contact. Reply within 24 hours on business days.

  • Phone (on request via email)
    Number shared after a short email pre-clarification.
  • Form
    Right — with project context
Response: < 24h on business days
Data transfer: encrypted (TLS 1.3)
Spam protection: Cloudflare Turnstile (no reCAPTCHA)