Your correspondence,
finally understood.
Local. Offline. With sources.
DCM Lumina reads your emails and PDFs, sorts automatically and answers questions about your archive — always with source citations.
Native Rust app. Local SQLite. No cloud lock-in, no account.
Sound familiar?
"I can't find anything."
30 emails a day, 5 subfolders, Outlook search gives up. Last month's invoice from ACME turns into a scavenger hunt.
"I miss deadlines."
A second-stage dunning notice was buried in an email you never opened. Early-payment discount gone — deadline missed.
"I retype data."
Invoice number, IBAN, net/gross — copied by hand into DATEV or Excel. Typos guaranteed.
How DCM Lumina works
Connect
Connect your IMAP mailbox, choose an AI provider (Fireworks AI, Gemini, OpenAI). Setup in 2 minutes — no account.
AI understands
Extractor pulls invoice numbers, IBANs, amounts and due dates — structured. Validator LLM cross-checks the logic.
You ask, Lumina answers
"How much did ACME invoice last year?" — Lumina chat searches your archive and always cites the source.
DCM Lumina in action.
From inbox to searchable archive — in seconds.
Everything included. Nothing superfluous.
Local-first Architecture
SQLite database and Markdown wiki stay on your PC. No cloud, no telemetry, no account.
OCR Built In
Scanned letters get the same treatment as digital PDFs. Tesseract integrated, German script first-class.
Dual AI Verification
Extractor pulls data, validator LLM cross-checks the logic (e.g. gross = net + VAT). A green tick instead of hope.
Lumina Chat with Sources
Ask anything — answer in seconds, always referencing the original document. Tool-use searches archive plus wiki.
Workflows & Webhooks
Invoice > €5,000 → accounting + cloud folder. Dunning detected → Slack webhook. Rules trigger actions automatically.
Deadline Radar
Due dates, early-payment days and dunning levels are extracted and logged. Never miss an early-payment discount again.
Auto Wiki
A supplier wiki builds itself: every new piece of correspondence adds structured knowledge in open Markdown files.
Multi-Account IMAP
Multiple inboxes in parallel — business, personal, accountant. Fully automated, cleanly separated.
Security by Design
Passwords and API keys encrypted via Windows DPAPI. AI provider of your choice — including EU servers.
One-time. Clear. Fair.
Per-machine licence. No subscription, no account, no hidden costs.
DCM Lumina
Then 89 EUR one-time per machine — or simply stop.
- Full feature set, no restrictions
- Download link sent immediately by email
- No credit card, no account
- Incl. 30 min. personal setup call
- All updates included
Customisation Workshop
- 4 hours, 1:1 with Leanofy
- Define custom document types & workflows
- Configure accounting export (DATEV, Excel)
- Webhook integrations (Slack, Teams, Zapier)
- Ideal for special requirements
No more Outlook hunts
or copy-pasting data.
14 days free. No account. No risk.
Enter your email → download link arrives instantly.