Websites, bookings, AI agents — for your business.

Booking systems, custom workflow automation, and AI agents — built once, owned by you. No monthly SaaS, no platform lock-in. One studio ships both pillars, end-to-end, for German-speaking SMBs.

For experience-oriented local businesses

One package, end-to-end. Built once, yours to keep.

Multilingual marketing site, online booking & tickets, self-hosted CMS that doubles as admin panel, and GDPR-conscious infrastructure — all built end-to-end and owned by you. No monthly SaaS fees, no platform lock-in.

  • Multilingual Marketing Site

    German default, English auto-detect. Hero, highlights, gallery, events, FAQ, opening hours, and contact — all editable from the CMS.

  • Booking & Ticketing Flow

    Multi-step booking with date picker, time slots, guest counts, add-ons, and confirmation with calendar .ics download and reference numbers.

  • Self-Hosted CMS & Admin Panel

    Payload CMS as the admin panel and lightweight CRM. Manage events, bookings, tickets, and site content — no code required, no monthly fees.

For businesses ready to automate

AI agents and automation, built for the way you work.

Custom AI agents, workflow automation, and integrations between your existing tools — built end-to-end and owned by you. The boring middleware and the smart layer, shipped together by one studio.

  • Workflow agents that take work off your team

    Multi-step agents that read your inbox, your CRM, your ticketing system — and act. Not chatbots: working colleagues that ship outcomes.

  • RAG pipelines on your own data

    Knowledge agents that answer questions from your docs, contracts, and product manuals — with citations. Self-hosted; your data never leaves.

  • Integrations and middleware that just work

    Quiet pipelines between the tools you already use — booking systems, CRMs, accounting, calendars. The plumbing nobody wants to build.

Built on, not glued together
Next.js
TypeScript
React
Tailwind
Payload CMS
PostgreSQL
Stripe
Leaflet
OpenStreetMap
Vercel
Hetzner
Angular
Vue.js
React Native
Flutter
Next.js
TypeScript
React
Tailwind
Payload CMS
PostgreSQL
Stripe
Leaflet
OpenStreetMap
Vercel
Hetzner
Angular
Vue.js
React Native
Flutter
The process

Four phases, no surprises.

A predictable rhythm from kickoff to launch. Progress shows every week, not just at the end.

  1. Discovery

    The business, users and technical lay of the land get a deep look before any code. You leave this phase with a written brief and a defensible plan.

    DeliverablesProject BriefTechnical SpecArchitecture Plan
  2. Design

    Wireframes → high-fidelity design → clickable prototype. The experience and design system get validated before development picks them up.

    DeliverablesWireframesUI DesignsInteractive Prototype
  3. Development

    Weekly demos in agile sprints. Clean TypeScript, automated tests, code reviews. Deployed on every push — you can poke at it any time.

    DeliverablesWorking SoftwareTest SuiteCI/CD Pipeline
  4. Launch

    Production deploy with monitoring, error tracking and a clear rollback plan. Support stays on for the first weeks, with iteration driven by real usage.

    DeliverablesProduction DeployMonitoringOngoing Support
Andriy Viychuk — founder of Devviy
About

Hi, I'm Andriy.

With over seven years building production systems and full-stack apps for agencies and larger companies. Now I run devviy.com as a one-person studio. Every project end-to-end: design, code, deployment.

Get in touch
Let's talk

Got a project in mind?