MoonBrain Get your Brain installed
FOR MOONLIGHTERS

Work two jobs in the time of one.

MoonBrain is a working AI system for your own computer: a plain-text vault plus an AI agent that reads your mail, turns it into tasks, keeps your board clean and learns from every job it does. I install it with you in one call. Then I keep it updated every month.

Board.md· 14 cards
INBOX3
#221
Invoice query from Marta
due Thu · reply drafted
#220
Contract v3 to review
due Fri · 4 pages
#219
Reschedule Tuesday sync
today · needs decision
DOING2
#214
Reply to Lena re: kickoff date
draft ready
#208
Q3 summary for client B
outline done
DONE9
#213
Expense report, August
filed · logged
#211
Follow-up: proposal sent
logged
#207
Renew domain
logged
› handle card 214
Drafted reply to Lena, saved to 214/reply.md. Needs your decision: accept the 14 Oct date?
Illustration of a MoonBrain board. Card contents anonymised.
1,308
cards handled in 104 days
1,265
logged runs
35
playbooks grown from 2,529 learning-log lines
3,259
files in one vault

Counted in my own Brain on 23 September 2026. This is the system you get.

What it does on a normal Tuesday

01

Inbox to board.

Mail and messages come in. The agent reads them, decides what they are, and turns each one into a card with a due date and a next step. You look at a board, not an inbox.

02

Cards to done.

You say "handle card 214". The agent does the work it can do (draft the reply, prepare the document, update the file), then asks you only for the decision.

03

Every week, it gets better.

Each finished card leaves a line in a learning log. When a lesson repeats, it becomes a rule. After three months my Brain had grown 35 of those rules on its own.

WORKS WITH

The apps you already use, under your own account.

  • Gmail
  • Outlook
  • Google Calendar
  • WhatsApp
  • Microsoft Teams
  • Slack
  • LinkedIn
  • Google Drive
  • Moneybird
  • Stripe
  • Your browser
  • +37 more

See everything it connects with →

YOUR DATA

It runs on your machine, in plain markdown files you can open without us.

No data leaves your computer to MoonBrain.

For you if

  • You work from home at least part of the week and want that time back, or want to fit a second job or your own business into it.
  • You are a freelancer, consultant or knowledge worker whose day is mail, documents, meetings and follow-ups.
  • You already pay for an AI assistant and feel it should be doing more than answering questions.

Not for you if

  • You want a mobile app or something in the browser. This lives on your Mac or PC.
  • You are not willing to spend one hour with me on the install call and one hour a week in the first month learning how to work with it.
  • You expect it to run your job without you. It does the work; you make the decisions.

From payment to working Brain in one week

  1. STEP 1

    Pay.

    Install fee plus the first month, one checkout. (Stripe, secure.)

  2. STEP 2

    Book.

    Pick a slot in my calendar right after checkout. Install calls run Monday to Friday, 09:00 to 20:00, based on availability.

  3. STEP 3

    Install call, 60 minutes.

    We set up the vault, connect your AI agent, load the playbooks and run your first real task together. You leave the call with a working system, not a to-do list.

  4. STEP 4

    First week.

    Your board comes with seven starter cards, one per day. Do those and you know how to work with it.

  5. STEP 5

    Every month.

    A new release lands in your Brain with what I learned that month, in plain language. You type "update my Brain" and it is done.

What you pay for every month

INCLUDED

  • ✓Monthly update of the system, with a changelog in plain language
  • ✓Fixes when something breaks
  • ✓Text support by email at hello@moonbrain.ai: ask a question, get an answer within one working day, usually faster
  • ✓Access to every new playbook I add

NOT INCLUDED

  • —Extra calls (available on request, priced per hour)
  • —Support for changes you make outside the system
  • —Your AI subscription (you bring your own; Claude is what I install and recommend, about $20 a month)
  • —Working with client data in the EU? Claude's Team plan includes a data processing agreement from Anthropic. GDPR notes

Cancel any time. Your vault and everything in it stays yours; you just stop getting updates.

One install. One monthly fee. That is it.

FOUNDING CUSTOMERS

First 25 customers pay $99 install and keep $39 a month for life, in exchange for honest feedback and one testimonial.

A comparable custom setup normally costs $5,000 to $25,000 to build. Founders get the install for $99.

MoonBrain
INSTALL$249 one time
THEN$39 per month
  • ✓60-minute personal install call
  • ✓The full working system, inside your own vault
  • ✓Seven-day starter board
  • ✓Monthly updates and fixes
  • ✓Text support within one working day

Prices in USD. VAT added at checkout where it applies. Cancel monthly. Install fee is refunded in full if we cannot get your Brain working on the call.

What you need before the call

  • 1A Mac or Windows computer you use for work
  • 2Obsidian (free) installed
  • 3A Claude subscription (Pro is enough) and Claude Desktop installed
  • 4One hour, your real inbox open, and one task you would like to never do by hand again
Robert Groenendijk

Who is installing it

I'm Robert. I run my own consulting work through this system every day and have done since June 2026. MoonBrain is not a template I made to sell; it is my own working Brain, cleaned of my clients' data and packaged so it installs on your machine in an hour. Every monthly update is something I needed myself first.

FIRST USERS

What the first users say

“I used to sort and answer a flood of near-identical messages every day. Now my Brain picks out what matters and handles the rest. Would I recommend it? One hundred percent, to anyone with repetitive work who wants that time back.
Chavez Peters Chavez PetersRecruiter and business owner
“Robert gave me a clear demo and was quick to respond to every question. Brain offers more than I need, as I don't get that many messages across that many channels, but for someone who does, this is a great solution. The learning log is the part I like most, a smart way to let an AI assistant improve based on your own work.
Erwin van de Beek Erwin van de BeekSoftware engineer for SMEs, Evert Willem Development

Questions

No. You type instructions in plain English. The install call covers everything technical.

Stop answering mail. Start reviewing cards.

Get your Brain installed

Install fee refunded if it does not work on the call. Cancel monthly.