1. Handles the paperwork
Invoices, receipts, bookkeeping, expense tracking. The boring, repetitive money admin that piles up if you don't touch it for a week — it just gets done, quietly, in the background.
What Is a Business OS?
Your Business, Running on Autopilot — Here's What That Actually Means
A Business OS is a private system that lives on your own computer and quietly handles the operational work your business throws off every day: bookkeeping, invoices, emails, reports, backups, and more. You own it, you control it, and nothing leaves your machine.
Runs on your Mac, on your accounts. We never see your data.
The simplest way to think about it
Think of it as a staff member who never sleeps, never forgets, and costs about $150 a month.
Not a person you have to manage. A system that does three things for you, around the clock, without being asked.
2. Runs your daily operations
A morning briefing waiting for you when you wake up. Email sorted and triaged. Reminders, follow-ups, and reports — handled on a schedule so nothing slips through.
3. Answers your business questions
Ask it anything about your numbers, your calendar, or your customers — in plain English, like you'd text a smart assistant. "What's my cash position?" You get a real answer, instantly.
The math
What You're Replacing (and What You're Saving)
Most small businesses rent a stack of monthly software subscriptions. A Business OS runs your own version of those same tools — on your machine, for the cost of the few services you actually use.
The usual way
Monthly software subscriptions
| QuickBooks (bookkeeping) | $1,200/yr |
| HubSpot (CRM) | $1,080/yr |
| Zapier (automation) | $2,388/yr |
| Slack (team chat) | $1,080/yr |
| DocuSign (e-signatures) | $600/yr |
| Calendly (booking) | $192/yr |
| Mailchimp (email) | $600/yr |
| Total | $7,140/yr |
The Business OS way
Self-hosted on your machine
| Beancount (bookkeeping) | $0 |
| Twenty (CRM) | $0 |
| n8n (automation) | $0 |
| Mattermost (team chat) | $0 |
| DocuSeal (e-signatures) | $0 |
| Cal.com (booking) | $0 |
| n8n Newsletters (email) | $0 |
| Cloudflare + backups + AI APIs | ~$150/mo |
| Total | ~$1,800/yr |
Net savings: ~$5,300 a year
— and you own everything. No subscriptions to cancel, no data held hostage.
Under the hood, explained simply
The Four Layers, Explained Without the Tech Speak
A Business OS is really just four parts working together. You'll never need to touch most of them — but here's what's going on so it's not a black box.
The always-on stack
Six small apps run quietly in the background on your Mac. You never see them. They handle your data, your memory, and the connections between everything. (In tech terms: Docker containers — a database, an automation engine, a chat system, an AI memory store, a CRM, and a bookkeeping screen.)
The scheduled worker
Tasks that run on a timer, like clockwork. Every morning at 7am, your briefing is generated. Every night, your books are backed up. Every week, your profit-and-loss and key numbers land in your inbox. (In tech terms: macOS LaunchAgents — the same mechanism your Mac uses to run things on a schedule.)
The AI operator
This is the brain. It reads your business setup and acts as your AI assistant. You give it work in plain English and it carries it out. It knows your businesses, your numbers, your writing voice, and your priorities. (In tech terms: Claude Code — Anthropic's AI tool — reading your configuration files.)
You, in the loop
The AI surfaces decisions and drafts work. You approve. Payments, messages to customers, public posts — nothing goes out without your say-so. The system is built to do more, faster, while keeping you firmly in control. You stay the owner, not the operator.
A day in the life
Here's What a Running Business OS Does Every Day
Not theory. This is the actual work it takes off your plate, on a loop, whether you're at your desk or on a beach.
Morning briefing at 7am
Cash position, your calendar, overnight alerts, key numbers — all in one message, every morning. No app-switching, no logging in to check five dashboards.
Bookkeeping on autopilot
Your bank syncs daily and every transaction gets categorized. Come tax time, you're just handing your accountant a clean file instead of a shoebox of receipts.
Invoice automation
Overdue reminder emails go out on their own. Insurance and motor-club invoices get processed and filed without you ever touching them.
Email triage
Your inbox gets sorted and labeled every 15 minutes. Action items land on your dashboard. Receipts get auto-filed straight into your bookkeeping.
Receipt scanning
Drop a photo of a receipt into a folder. The AI reads it, writes the bookkeeping entry, and files the image away. Done — no manual data entry.
Booking to signed contract
A customer books → a contract goes out for e-signature → the signed PDF gets stored → the booking is confirmed. Zero manual steps in between.
Weekly reports
A finance report, marketing numbers, and a risk register — every Monday morning, tailored to your specific business or portfolio of businesses.
AI chat interface
Ask questions in plain English from a private chat app: "What's my cash position?" "Summarize last week." "Draft a late-invoice notice for this customer."
The honest checklist
What You Need to Run This
No surprises. Here's exactly what it takes — the gear, and the monthly bill.
Hardware + software
- A computer that can run Docker Desktop — Mac, Windows (WSL2), or Linux. macOS is recommended for the full automation suite.
- At least 16 GB of memory (RAM) — 32 GB recommended if you run several businesses
- 40 GB of free disk space
- Docker Desktop installed — free
- Claude Code — Anthropic's AI tool, about $100/mo for the Pro plan
- An internet connection — for the AI and service calls
Monthly budget
| What | Monthly cost |
|---|---|
| Anthropic API (the AI's usage) | $30–80 |
| Claude Code subscription | $20–100 |
| Backblaze B2 (encrypted backups) | $5 |
| Cloudflare tunnel | $5 |
| Plaid (bank sync, per account) | $3–6 |
| Google Workspace (optional) | $6 |
| Everything else | $0 |
| Total | $69–202/mo |
Most of the stack is open-source and runs on your own machine. You're only paying for the handful of outside services you actually use.
Be honest with yourself
Who This Is — and Isn't — For
We'd rather you skip it than buy it and regret it. Here's the straight talk.
Good fit if...
- You own and actively run a business
- You have a Mac, Linux machine, or Windows PC with Docker Desktop
- You're willing to spend a weekend on setup
- You want to own your own tech, not rent it forever
- You'd rather pay once for a system than $800/mo in subscriptions
Not the right fit if...
- You want someone else to run it all forever. Our Full Service tier covers this — but you should still own it eventually.
- You need it working by tomorrow. Setup is a weekend plus some account creation.
- You've never opened Terminal and never want to. Our Build For Me tier is the better path.
Three Ways to Get Started
Pick the entry point that fits where you are. There's no wrong door.
Read the $299 Starter Kit
Buy the template kit, read the plain-English manual, drag the folder into Claude Code, and have a working Business OS by Sunday.
See all service options
From DIY setup to a full-service build and ongoing business administration. There's a tier for every situation and budget.
Talk to Nick first
A free 30-minute call. We'll tell you honestly what makes sense for your situation. No pitch, no pressure.
Questions? Email nick@bradfieldenterprises.org — we reply same day.