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Lunabook Logo In development · private beta

SaaS · own product

Lunabook

“Just say it — Lunabook does it.” My own SaaS product: bookkeeping, CRM & projects with an AI assistant.

Live app demo

↳ animated walkthrough with sample data

Overview

Lunabook is my own SaaS product in development: a calm all-in-one app for the self-employed in the DACH region, uniting CRM, bookkeeping and project management on one shared data foundation. The special part: an AI assistant you simply tell what you need in plain language — “create an invoice of €1,200 for Studio Krause” — and Lunabook does it. Concept, UI/UX, design and the entire development are mine.

Services
Product & conceptUI/UX designFull-stack developmentAI integration
Year
2026
Status
In development · private beta
Tools & tech
Next.jsReactTypeScriptSupabaseClaude APIAgentic Coding
lunabook.de

The idea

The self-employed juggle three or four tools today: one for invoices, one for customers, one for projects — and nothing talks to each other. Lunabook puts everything on one shared data root: a quote becomes an invoice in one click, receipts flow into the reports automatically, the customer is attached to every record. “Order that never sleeps.”

The AI assistant

The heart of it is an AI assistant with real tool access: it creates customers, writes quotes and invoices, answers questions about your numbers — straight from the chat. On top, a receipt AI reads uploaded invoices automatically (vendor, date, amount, tax rate) and books them into the right category. You say it, Lunabook does it.

Serious bookkeeping

Behind the calm surface sits real depth: e-invoicing (ZUGFeRD), cancellation, down-payment and final invoices, gapless numbering, live tax logic for DE/AT/CH, VAT reports and a dedicated tax-advisor access with its own firm cockpit. Hosted in the EU, GDPR-compliant — built as a multi-tenant SaaS.

Highlights

What makes this project special.

AI assistant with tool use

Invoices, quotes & customers on request in chat.

AI receipt scanning

Snap receipts — Lunabook reads and books them.

E-invoicing & taxes

ZUGFeRD, numbering, tax logic for DE/AT/CH.

Tax-advisor access

A dedicated firm cockpit with clients & inbox.

The full page

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lunabook.de
Lunabook — full landing page built by Christopher Rapp
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