Inside Lunith Commerce OS
A business operating system that runs in your own Notion. Log each sale once and see what it kept after that channel's fees, costs and ads.
$35.99 intro price through Dec 14, 2026 · $59.99 after
One-time purchase · no subscription · Free updates, listed publicly · All sales final · We aim to fix it within 3–7 business days of having the details we need to reproduce it · Read the policy →
Three screens from the published page of the OS, showing its example rows.
What each channel kept, first thing on the home page
The home page opens its money on Money by channel: one row per channel, with gross revenue, fees paid and net revenue, each worked out from that channel's own fee row.
Log every order in one ledger
Fees and net come from that channel's own fee row, so example order 1002, $9.99 on Etsy and ad-attributed, pays $2.90 and nets $7.09.
End each week with a short review
One row a week in Weekly Review: the hours you worked, what sold, what you shipped, one thing to fix and next week's one thing, so each week is written down.
After you duplicate, check three numbers: order 1002 nets $7.09, Etsy shows 5 ledger orders, the Wedding Seating Kit shows 4 sold. If any is off, email support@lunithlabs.com and we aim to fix it, free (how fixes work).
Without one ledger
- The numbers live in sheets and platform dashboards, and the sheet meant to join them up is always a week behind.
- Every channel takes its fees its own way, so it's hard to know what a sale kept.
- Nothing sets a time to look back at the week, so what comes next is decided from memory.
Fees and net on every sale, and a weekly review
What each product and channel kept
See what every product and every channel kept after fees. For physical products, see it after goods and shipping too.
Each channel's own fee row
Each channel keeps its own fee rates. Log a sale against it and the fees and net are worked out.
Four prompts, once a week
A Weekly Review, four prompts once a week, with a place to write down next week's one thing.
Shopify, Gumroad, PayPal? The OS has example fee rows for them, each with the date we checked it. Try yours free in the calculator.
Ten linked databases: six are the core, four stay shut until you open them. Day one is one table: your channels and their fees.
You type each sale in; the fees and net are worked out for you.
The walkthrough: 3 min 57 s, filmed on the preview page
A tour of the OS in under four minutes, filmed on its public preview page: what's on the home page, how to log a sale, where the money shows, the listing pipeline, opening a module, and what you can safely change.
The same film is in your download as walkthrough.mp4.
What the film shows, step by step
- Start here ()
- Log a sale ()
- Fees, worked to the cent ()
- Net is what you kept ()
- Open a channel ()
- Once a week ()
See every step
- Lunith Commerce OS
- Start here
- What each channel kept
- Recent sales
- Ten databases, six of them the core
- Bring your business in
- Log a sale
- Open an order
- Fees, worked to the cent
- Net is what you kept
- Where the money shows
- Open a channel
- Gross, fees paid, net revenue
- Effective fee rate
- Profit after ads
- The pipeline
- The catalogue
- Open a product
- Stock, for what you ship
- A module: Launches
- Once a week
- What to change safely
- Delete the Example rows and start
What you get
- The full OS in your own Notion workspace: ten linked databases
- A fee row per channel, with fees and net worked out on every sale
- The 51-page guide (US Letter and A4) and walkthrough.mp4
- The seven-day Start Here path and the Launch guide
- Four CSV import templates
- Free updates: a fresh copy from your order link each time
Compared with a free tracker, it adds a fee row per channel that you date and re-check, fees and net on every sale, a weekly review, and a guide to each database and its key formulas.
Also: Offer Math and Unit Cost Sheet, $19 each.
How it arrives
Pay on Stripe
Checkout is on Stripe's page: card, or another way Stripe offers you there.The download and your Notion link, by email
As soon as your payment clears, your order page and your order email carry the download and your own link to the OS.Duplicate
Open the link while signed in to Notion, click Duplicate, and the whole system copies into your own workspace.
All sales final. If something is broken, email us.
You get the full system as soon as your payment clears, so all sales are final. What we promise instead: it works as described.
If anything is broken, unclear or missing, email support@lunithlabs.com. We aim to fix it within 3 to 7 business days of having the details we need to reproduce it, free of charge. We read every message, and when a fix changes the product it ships as an update to everyone who bought.
Lunith Commerce OS is a one-time purchase. Updates we release for it are free for everyone who bought it. It doesn't include any other or future product.
You can ask us for a written copy of this policy. Your legal rights are not affected.
Every update we ship is listed on the updates page. See the updates
We aim to reply within one business day.
Inside the OS
Screens from the published page of the OS, showing its example rows. Every number in them was either typed in or worked out from what was typed; nothing syncs.
What each channel kept, first thing on the home page
The home page opens its money on Money by channel: one row per channel, with gross revenue, fees paid and net revenue, each worked out from that channel's own fee row.
Here the example Shopify row reads $430.62 gross, $24.19 in fees and $393.44 net, and the example Etsy row $471.45, $74.62 and $376.85; the three example fee rows with no sales yet read $0.00.
The sums along the bottom, $1,565.52 gross, $169.14 in fees and $1,353.42 net, are the totals across every channel.
Start here: one channel, one product, one sale, and what you kept
The home page opens on a Start here note: four clicks on rows that are already there.
- Etsy's fee row (6.5%, 3%, $0.25, $0.20 and a 15% ad fee, checked on 10 October 2026)
- The Budget Spreadsheet
- Order 1002, where $9.99 gross works out $2.90 in fees
- What that order kept: $7.09 net, the same $7.09 inside Etsy's $39.62 of ledger net and the spreadsheet's $57.59
Then it points to your first seven days.
Your latest sales, newest first
The other half of the home page: Recent sales lists your latest sales, newest first, whatever the month, with gross, fees, net and profit, what each kept after goods and shipping.
The sums along the bottom add up every sale in the ledger: here $191.88 gross and $18.03 in fees, and the $9.99 given back on example sale 1005 (typed in its Refund column), leave $163.86 net and $143.96 profit over the sixteen example sales.
Example sale 1016, a mug through the Shopify store, reads $12.00 gross, $0.65 in fees, $11.35 net and $7.45 profit.
What each product has earned: net revenue, units and revenue per hour
Each product is one row, however many channels sell it.
Net revenue adds up every sale of it after fees, and Revenue per hour divides that by the hours it took to make.
Here the example mug has cleared $59.35 from 5 units, $29.68 for each hour it took to make, and the Budget Spreadsheet $57.59 from 8 units, $6.40 an hour.
Stock on hand, and when to reorder
The Stock view lists the physical products only: the count you last made, the level you reorder at, what one unit costs you and how many units have sold.
Low stock ticks itself when the count falls to the reorder level; here the example mug has 18 against 10, so it is not ticked, at a $4.50 unit cost with 5 units sold. You type the count; no sale takes it down.
What one sale of each product keeps, and a flag when it loses money
Kept per sale is what one unit of a product kept after fees, ads and goods: its profit to date, less its ad spend, over its units sold.
Here the Wedding Seating Kit keeps $11.73 a sale ($46.92 over 4 units), the Ceramic Mug $7.89 ($39.45 over 5) and the Budget Spreadsheet $7.20 ($57.59 over 8); the unsold Autumn Wall Art Set shows nothing yet.
Losing money per sale ticks itself at $0 or less, and none is ticked.
See fees and net by channel without a second spreadsheet
One row per channel: gross revenue, fees paid, net revenue, profit after ads and ledger profit, each worked out from that channel's own fee row and the sales and statements logged against it.
Here the example Etsy row reads $471.45 gross, $74.62 in fees, $376.85 net and $351.85 profit after ads, and the example Shopify row $430.62, $24.19 and $393.44.
The sums along the bottom, $1,565.52 gross, $169.14 in fees, $1,353.42 net and $1,328.42 profit after ads, are the totals across every channel.
Fee rows you can check, with the date each was checked
Every fee row names the page its figures came from and the date they were checked, and Checked on says how old that date is, with a warning once it is more than 90 days.
The example rows:
- Shopify, checked 20 October 2026
- Gumroad, checked 14 October 2026
- Etsy, checked 10 October 2026
- PayPal, Payhip and Lemon Squeezy, each an estimate, checked 9 October 2026
- The own website, with no date yet, asks for one
One channel opened: its orders and its statements, added up
Open a channel's row and its lines add up what it kept.
Here the example Etsy row's five orders logged one by one show $58.95 of ledger gross, $9.34 in fees and $9.99 given back (its Ledger refunds line, example sale 1005), leaving $39.62 of ledger net.
Its one statement month typed into Months keeps $337.23 of monthly net from $412.50 of monthly gross.
Net revenue adds the two: $376.85.
Busy channel? Use Months, and a check that no month is counted twice
For a channel with too many orders to log one by one, type its monthly statement into Months: one row per channel per month, worked out from the same fee row a sale reads.
Use the Ledger for the rest, never both for one channel in one month; the Months row's Counted twice column says when a month is on both sides.
The note links Months and Bringing your numbers in, with its steps and the four CSV templates, and says nothing syncs by itself.
Log every order in one ledger
One row per order: pick the product, pick the channel, type the amount, and tick Ad-attributed when the platform charged its ad fee.
Fees and net come from that channel's own fee row, so example order 1002, $9.99 on Etsy and ad-attributed, pays $2.90 and nets $7.09.
Profit, beside Net, takes a physical order's goods and shipping off: example order 1016, a mug through the Shopify store, is $12.00 gross, $0.65 in fees, $11.35 net and $7.45 profit.
Example sale 1005 ($9.99) was given back in full, typed in its Refund column, so it nets −$1.40, the fees the channel kept. The sums along the bottom: $191.88 gross, $18.03 in fees, $163.86 net and $143.96 profit.
End each week with a short review
One row a week in Weekly Review: the hours you worked, what sold, what you shipped, one thing to fix and next week's one thing, so each week is written down.
This is the example week, filled in: 9 hours, and one Wedding Seating Kit sold on Etsy. Example data, there to replace.
The last 7 days by channel, in every weekly review
Every review made from the Weekly review page opens with Last 7 days by channel: the sales dated that day or in the seven days before it, grouped by channel, newest first.
Read on 9 October 2026 it lists eight example sales:
- Gumroad's 1013 and 1011, each $9.99 gross, $2.09 in fees and $7.90 net
- The own website's 1014 and 1010 at $12.00 with no fees
- Shopify's four, from 1016, $12.00 gross, $0.65 in fees and $11.35 net
The example week, as a row
Example data: the one example row in Weekly Review, the week of 14 September 2026, with 9 hours worked and its prompts answered, the way the row above reads as a page.
Every week you add is one more row, and nothing here is yours until you type it.
A Launch guide inside the OS, from idea to the first week's review
The Launch guide page as it opens: five steps, each a heading you open when you reach it, from the idea and the offer to the first seven days, using the Launches rows you already have.
It does not run ads, write listing copy or plan and post your content for you, and it promises no sales, traffic or rankings.
Recurring costs: what bills every month, and the total
Expenses holds what the business spends, tied to the channel or product it was for.
Tick Recurring on anything that bills every month and the Recurring view lists only those: here, a keyword tool at $9.99 and a design app subscription at $12.99, summed as $22.98.
The ten databases and how they link
Here, a product is one row, each of its listings is a row of its own, and every sale is linked to its product and its channel. Each channel has one row in Platforms with its fee rates and the date you checked them.
Log a sale against it and its fees and net fill in; the row adds up what that channel kept.
The core: set up in the first week
- PlatformsOne row per channel. The fee table lives here, and so does what the channel made.
- ProductsThe thing you sell, digital or physical, once, however many channels it is listed on.
- ListingsA product on a channel. One row per product per channel, moving from idea to live.
- SalesThe ledger, one row per order. Pick the product, pick the channel, type the amount.
- MonthsMonthly totals typed from the platform's own statement, for channels with too many orders to log one by one.
- ExpensesWhat the business spends, and which channel or product it was spent on.
Modules: open them when you want them
- LaunchesEach launch, what it is for, and whether the prep happened.
- ContentEvery post, pin, video and email, tied to the product or the launch it is for.
- FeedbackReviews, questions and file problems, closed out into fixes rather than left in an inbox.
- Weekly ReviewFour prompts, once a week, so each week is written down.
- A fee row per channel: transaction %, processing % and fixed, per-sale fixed and ad %, with the date you last checked them.
- Products digital or physical: for a physical one, its unit cost, stock on hand and reorder level, with a Low stock flag and a Stock view; on every sale, its units, the shipping charged and what shipping cost, with cost of goods and profit worked out on the row.
- Fees and net worked out on every sale from that channel's own fee cells, to the cent.
- Months, for a channel with too many orders to log one at a time: type the statement's totals and the same fees apply.
- Gross revenue, fees paid, net revenue, effective fee rate and profit after ads on every channel's row, and the same profit with goods and shipping taken off.
- Revenue per hour on every product, from its net revenue and the hours it took to make.
- One listing row per product per channel, with its price, images, days live and its own status.
- A home page on top: today's routine and three buttons, what each channel kept and your recent sales, then the catalogue, recurring costs, stock to reorder, the modules and a menu of all ten databases.
- Starter rows in every database, each titled Example: something, so one search finds them all when you want them gone.
- In the guide, every database marks which properties are load-bearing and which are safe to rename or delete.
One order, worked through
Example order 1016: a mug for $12.00 through the example Shopify row, not ad-attributed, at the US Basic plan rates with Shopify Payments as the row was checked on 20 October 2026.
Change one cell on a channel's fee row and every order on that channel is worked out again.
| Gross | $12.00 |
|---|---|
| Transaction 0% + processing 2.9% | $0.35 |
| Processing fixed + per-sale fixed | $0.30 |
| Ad fee, none on this order | $0.00 |
| Fees | $0.65 |
| Net | $11.35 |
Example order 1002: $9.99 on the example Etsy row, ad-attributed, at the US-seller fees published when the row was checked on 10 October 2026.
| Gross | $9.99 |
|---|---|
| Transaction 6.5% + processing 3% | $0.95 |
| Processing fixed + per-sale fixed | $0.45 |
| Ad fee, 15% on this ad-attributed order | $1.50 |
| Fees | $2.90 |
| Net | $7.09 |
What's included
The full Lunith Commerce OS, duplicated into your own Notion workspace from the link in your order email: ten linked databases with their views and formulas
The seven-day Start Here path, one part a day
Example rows you replace, each titled Example: something, including example fee rows for your own website, Shopify, Gumroad, Etsy, PayPal (estimate), Payhip (estimate) and Lemon Squeezy (estimate), and room for any other channel you sell through
The guide as a PDF, in US Letter and A4, which says how to open the OS on page 3 and explains each database and its key formulas
A page of three checks to run straight after duplicating, a page on what the OS does not do, a support note, and every update listed on the updates page
Four CSV import templates in the zip, for Products, Sales, Listings and Expenses, each headed exactly like its database, with a README for Notion's Merge with CSV
A README with the three steps to get the OS
A Launch guide in the Launches area: from idea to the first week's review, using the Launches you already have
One purchase covers your business and everyone who works for it. No per-seat fee from us.
Notion's own plans are separate and set by Notion, not by us. A workspace shared by two or more people may hit limits on Notion's free plan, and Notion may charge per member on its paid plans. See notion.com/pricing.
walkthrough.mp4, in the download itself: what you are looking at, logging a sale, where the money shows, the listing pipeline, opening a module, and what you can safely change
Delivery as soon as your payment clears: a download link on your order page and in your order email
$35.99 intro price through Dec 14, 2026 · $59.99 after
One-time purchase · no subscription.
Who it is for
- You run a business, from one product to a full catalogue, through one channel or several, and want its sales, fees and costs in one Notion workspace.
- Your numbers live in spreadsheets and platform dashboards, and you cannot easily see what a sale kept after that channel's fees.
- You want each sale's fees worked out from that channel's own rates.
- You would rather type a sale in than connect an app to your shop.
- You want a starting point to make your own: the guide marks which parts are safe to rename or delete, and the example rows, a small shop with three digital products and one physical one, are there to replace.
Manual entry, no live sync, no ranking data. Best on a desktop screen. Every limit, in full
Etsy, Gumroad, Shopify, PayPal, Payhip and Lemon Squeezy are trademarks of their respective owners. This product is not affiliated with, endorsed by or sponsored by any of them, nor by Notion Labs, Inc.