For firm owners and fractional CFOs. Four live weeks, small group.
Learn to build your firm’s platform. Start with one workflow.
The Sprint is a self-guided finance and accounting platform firms build themselves. The Bootcamp includes it and adds four live weeks to build and test one starter workflow on test data. Leave with a handover a colleague can follow and a plan for your next build.
Free, 20 minutes. For accounting and CAS firm owners. No access or install.
Learn the method. Prove one useful workflow.
Your team leaves able to scope, build, test and explain one useful starter workflow on The Sprint’s tested foundation. By default that is a close review note: it ties a demo trial balance to its source, cites a firm rule and flags missing evidence. You write a test that fails when its limit is broken. You use AI to help build it. The workflow itself does checkable arithmetic and cites its sources; it makes no model calls. Adding a live model is a separate step. You run it on made-up or test-company data, test its controls, and have a colleague try the handover. You keep the evidence and a plan for extending it into your own platform. A complete platform remains work for the team after the cohort.
Your wider platform plan can cover the close, forecasting, valuation and reporting. The Sprint’s catalog distinguishes implemented, scaffolded and planned parts; each selected workflow still needs to be built and validated. The four-week finish remains one starter workflow on test data.
Live use still needs checksNothing runs on real client work until it passes the checks. The link, the data, safety, launch and release. Both paths keep live use behind them.
Your first workflow, built by your team.
Each Tuesday we walk through a prepared example, one step at a time. Your team then builds its own the same way, on The Sprint’s code and test data. When yours breaks, bring it to the office hour and we fix it with you. Your team learns the method for the next one.
Software you keep and can change.
A perpetual source licence for one firm, with no seat limits or renewal. Vesper retains copyright in the original source; your firm owns its additions, data and outputs under the terms of sale. Your platform runs on systems your firm controls.
Rules for running it.
Which work to automate, and which to leave alone. What a control must do before a client sees its output. What it costs a month. Who opens the approval queue on a Tuesday.
What your best person knows, on paper.
One reviewed context file for the chosen workflow, written with fictional details so it is safe to use in the course. The real interview stays in your firm’s approved system. You also write a policy and evidence record for that workflow, the draft your firm-wide AI rules start from.
The rules have a name: AI-1. Six layers, built in order. May we do this at all. What the workspace may ask for, and what it may never do. What it reads, what it writes, and what it costs. How you prove it refused. Who uses it, and who says yes. Upkeep: keys that expire, models that change, drift. The Sprint gives your firm the plan, tested starter code and controls to build its own finance and accounting platform. The Bootcamp teaches all six layers while your team builds one starter workflow. The layers that let you defend it are not the ones that make it work. Most programmes teach the second set. You can change the supplied code under your firm’s perpetual licence. A new model vendor or a new ledger still needs an adapter, and tests to prove it works. That work stays under your control.
One lesson. One lab. Evidence you can show.
A setup week comes first, then four live weeks. Each week has its own page: one lesson, the essential reading, one lab, and the evidence to bring on Tuesday. The six full chapters stay available as reference. Tuesday is the session; Wednesday’s office hour fixes what broke on your own code.
Required work is on the week pageYou do not read one full chapter each week. Follow the linked sections and lab. Use the rest when you need more depth.
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Week Zero · setup
Before we start
By the end: a private project with The Sprint in it, two sentences that fence in the one workflow you will build, and a reviewed context file holding one real decision, its reason and its date, written with fictional details. About four hours, including a 30-minute kickoff call.
Measure the value in your own firm. Record how often work stops because an answer lives in one person’s head. Use that baseline to judge whether the context file saves time.
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Week One
Decide what right looks like, then measure it
By the end: a written test of a right answer, set before you see any output. Two outputs graded against it, one failure explained, and the cost of the job labelled measured, estimated or unknown.
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Week Two
Prove the source and decide what the workflow may do
By the end: a repeatable read of the test data, tied to a total you worked out separately, plus a deliberate mismatch it catches. A table of what it may read and what it must refuse. This is the two-week refund mark.
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Week Three
Build one workflow you can check
By the end: one working result from the made-up input. Its total matches the answer key and it cites the rule it applied. Tests feed it missing, out-of-date and wrong-period input.
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Week Four
Make it refuse, then hand it over
By the end: a test you watched fail when you broke a control on purpose, then pass when you put it back. A colleague follows your handover and you keep their questions. A dated plan for the next build, with the controls you have not built marked pending.
All of The Sprint. Then four live weeks with us.
A seat includes The Sprint’s guided planner, tested starter code, controls, examples and build guides. You also get four live weeks with us: the sessions, the office hour, a kickoff call, and a small room of firm owners doing the same work.
What we never getWe never get your ledger keys. We remove our access to your repo in the week after the last session.
- All of The Sprint
- The same self-guided finance and accounting platform: guided planner, tested starter source, controls, examples and build guides. For the supplied components, 2,140 tests passed and 1 was skipped. Your firm builds and tests selected workflows in its own compatible coding workspace. What is in The Sprint →
- Four live sessions
- One each Tuesday at 1:00 pm Central, for four weeks. You read the essential sections before each one. We walk through a prepared example; your team then builds its own in that week’s lab.
- One office hour a week
- Wednesdays at 1:00 pm Central. Sixty minutes. One standing Teams link, nothing to book. Bring what broke that week.
- A kickoff call
- Thirty minutes, before week one, to clear any setup problem. Before the first session, you add us to your repo under the repository-access addendum we sign first. A private talk is there when you ask for one.
- Fixes as pull requests, yours to merge
- When your code breaks, we push the fix to your private repo as a pull request. You read it. You merge it. We never change your main copy of the code directly, and you can lock it so we cannot.
- A small room
- Firm owners doing the same work as you. Seats are capped.
What you bring
- Your own workspace
- Your own ChatGPT Work local project, with Work locally on. Or Claude Cowork, with the permanent project folder set. What you can use depends on the app, your plan, its settings and your access. Neither service is bundled.
- No new AI key
- The workflow you build makes no model calls. In Week One you run one small task twice on an AI assistant your firm already approves, or use the instructor’s run if you have none. Turning on a live model in your own workflow is a later step, with its own checks, in The Sprint’s guide.
- One small workflow you know well
- The required course work uses made-up data or an authorized test account. Real client data stays outside the course. It needs separate permission, proof, and release checks later.
- Time each week
- The week pages budget two and a half to five hours of reading and lab work a week, plus the hour-long Tuesday session. Week Three is the heaviest. Before week one, the setup week takes about four hours, including the kickoff. Each week page lists its essential reading; the rest is reference.
Who this is for, and who it is not.
The worked examples use a general ledger. That is the system we build against. The method does not care. A context file holds your firm’s views, its limits, and the work that needs a second set of eyes. It works the same for tax returns, workpapers and journal entries. The same control makes the workspace stop. You are buying the discipline, not the dataset.
It often tells you not to spendRunning models on your own hardware will not save you money. We do the sums to show it. A platform spend limit is sometimes only an alert. Even a hard one lags. The stop lives in your own code. QuickBooks Online has no read-only permission. The read-only you think you have, you have to build. Most of what your firm should automate needs no approval machinery at all.
It is for you if
- You run a firm. Or you lead a tax, audit, advisory or client accounting practice in one. Or you carry a book as a fractional CFO.
- You are liable when you are wrong. That shapes what you will accept.
- You are good with numbers and hard to sell to. An AI vendor has sold to you badly already.
- You want to know what to build, and what not to.
- You can make time each week for the work.
It is not for you if
- You want someone to do it for you. That is a build, and we will say so.
- You have never used ChatGPT or Claude. Accounting and CAS firm owners can use the free, 20-minute close teardown to discuss whether this is the right starting point.
- You want a certificate. We do not give one.
- You want to hear that AI will replace your staff. We argue at length that it will not.
Build it yourself. Or build it with us in the room.
Both start with The Sprint, the self-guided finance and accounting platform your firm builds for itself. Use its planner, tested starter code and your own compatible coding workspace to build and test the workflows you choose. The Bootcamp adds four live weeks with us to learn the method through one starter workflow. Buy The Sprint on its own first if you like. Its full $2,000 is a single-use credit toward one Bootcamp seat and does not expire. See the terms of sale.
Next cohortEmail Owen to confirm the next cohort and availability before paying. Ask us first if The Sprint alone might serve you better.
Your team builds its first workflow, with us in the room. Leave with a plan for the next one.
The Bootcamp
Full refund if nothing new is running at two weeks.
- You get all of The Sprint.
- We walk through a prepared example each Tuesday.
- Your team builds and tests its own starter workflow on test data.
- After the cohort, your firm continues building and testing the workflows it needs.
- Four live sessions, Tuesdays at 1:00 pm Central.
- One office hour a week, on your own code. A private talk when you ask for one.
- Fixes as pull requests to your private repo. You read each one and merge it.
- We never get your ledger keys. Our repo access ends the week after the last session.
- A perpetual source licence for your firm; your firm owns its additions, data and outputs under the terms of sale.
- Your firm’s know-how on paper: one reviewed context file for the workflow, and a written policy record for it.
- A small room of firm owners doing the same work.
The refund. Work through the first two weeks. If nothing is running that was not running before, we refund it all. Ask within two weeks of the first session. Read the refund terms, including the Sprint licence and credit.
Already own The Sprint? Use the credit code we emailed when you bought it, and the $2,000 comes off the seat.
Not sure? Book a close teardown → It is a free, 20-minute diagnosis for accounting and CAS firm owners. Bring your client count, team size, and where the close hurts.
A self-guided finance and accounting platform your firm builds for itself.
The Sprint
Its full price comes off a seat later.
- A guided planner, tested starter source code, controls, examples and build guides.
- You choose the workflows and make the accounting decisions.
- Your own compatible coding workspace helps implement and test your plan.
- For the supplied components, 2,140 tests passed and 1 was skipped. Your chosen workflows need their own validation.
- Your firm runs the platform on systems it controls.
- Live integrations, model calls, screens and sign-in need implementation and checks before live use.
- Access to books, data and paid AI accounts requires permission. Guarded ledger changes require named human approval.
- A perpetual source licence for one firm, with no seat limits or renewal. If Vesper publishes a correction, buyers can get it through the download page.
Workspace subscriptions, AI usage and hosting are separate costs. Stripe takes you to the download and start guide. See what your firm receives →
The ones worth asking.
More answersFirms ask us the same things. We keep a page of them, on The Sprint and The Bootcamp. Read them →
Do I need to be technical?
You do not need to write code. You do need to install a workspace app, set up a private repository with the start guide, and read a change before you approve it. The material assumes you are good with numbers. And that you know controls: what counts as material, and why the one who prepares is never the one who approves. Those are the ideas the whole thing is built on. Engineers learn this year what your field has known for a hundred years.
Will this be out of date in six months?
Parts of it. We say so on the page. Every price and product claim carries the date we checked it. That is the main reason it is web pages and not a PDF. Updates are easy, and the course pages stay open for twelve months after your last session. The method will not go stale: measure on your own work, write decisions down, read-only first, and the control order in chapter four.
What does the Bootcamp add to The Sprint, really?
A seat includes The Sprint, the self-guided finance and accounting platform firms build themselves, and adds four live weeks of guided learning. On its own, The Sprint gives your firm the plan, tested starter code and controls to build and test selected workflows in your own compatible coding workspace. In the Bootcamp, your team learns the method by building and testing one small workflow on test data, with us in the room. You leave with a handover a colleague can follow and a plan for the next build. You get the course pages, the group calls, a weekly office hour on your own repo, and a room of firm owners. Both paths keep live use behind the same checks. If you want the room, take a seat. If you would rather build on your own, The Sprint is the honest choice. Its full price comes off a seat later.
Do I have to link a client’s live systems?
No. Every required lab can be completed with invented fixtures or an authorized test company. Live connections and client data require the separate proof, permission and release checks in the current Sprint guide. Completing the cohort does not grant that approval.
What if I finish and want to buy instead?
That is a fair answer, reached the right way. Chapter five has a section on that exact choice. If you finish and decide not to build, you did not fail. You did the work. And you can now question whatever you are shown far better than you could at the start.
And if you end up wanting it built, rather than building it yourself, that is the build. One month-end for the whole firm. Four weeks. Your firm keeps the code. It is scoped and quoted for your firm. A seat is the honest way to find out whether you want it.
Is there a refund?
Yes. Work through the first two weeks. By then you should have a repeatable read of test data, tied out to its source, with evidence of what it may not reach. If nothing is running that was not running before, we refund it all. The window is two weeks from the start of the first session. So you decide after you have seen the first two live weeks, not on faith. Email owen@byram-advisory.com. Read the refund, licence and credit terms.
The only thing we ask in return is a phone call. The refund does not depend on it. No one will try to talk you out of it. We want to know what you expected and did not get. Right now that is worth more to us than the price. Every one of those calls makes the next version better.
If you would rather settle the fit question first, that is what the close teardown is for. It is free and takes 20 minutes. Accounting and CAS firm owners walk one typical close with Owen. If you ask for a one-page map, we send it within 48 hours. You keep it with no purchase required.
Take a seat. Or bring your close first.
Seats are capped. Accounting and CAS firm owners who are unsure can start with a free, 20-minute close teardown. We name the work that repeats and what is not worth building. Ask for a one-page map and we send it within 48 hours, whether or not you buy anything.
Not sure which?Email us and we will tell you if The Sprint alone would serve you better. What is in The Sprint →