FILE 00 A CASE FOR THE OPOSSUM
OPOSSUMS
ARE
S-TIER
FILE 01 SUBJECT
SUBJECT
VIRGINIA OPOSSUM
Didelphis virginiana · harmless · ancient · useful
FILE 02 DEEP TIME
70+
MILLION YEARS
Time-tested pedigree. Outlasted the dinosaurs.
FILE 03 RANGE
ONLY
MARSUPIAL
NORTH OF MEXICO
Range expanding north as winters warm.
FILE 04 DENTITION
50
TEETH
More than any other land mammal in North America.
FILE 05 THERMAL PROFILE
94°
BODY TEMP
RABIES? UNLIKELY.
Too cold for the virus to thrive. Cases in opossums are vanishingly rare.
FILE 06 CHEMISTRY
VENOM
RESISTANT
LTNF peptide neutralizes pit-viper venom. Eats copperheads.
FILE 07 THANATOSIS
PLAYS
DEAD
Involuntary stress reflex — drool, foul smell, frozen body. Can last up to ~4 hours.
FILE 09 MYTH / REALITY
MYTH
"DIRTY"
"RABID"
"MEAN"
REALITY
GROOM LIKE CATS
94° COLD-PROOF
BLUFF & BAIL
FILE 10 DIET
EATS
EVERYTHING
BUGS · SLUGS
RODENTS
CARRION
SNAKES & FRUIT
FILE 11 LYME ECOLOGY
LYME
DEAD-END
Low-competence host — ticks that bite them rarely catch Lyme.
FILE 13 DYNASTY
INDIVIDUAL 2–4 YRS
SPECIES 70 MILLION
Short lives. Ancient blueprint. The franchise just keeps shipping.
FILE 14 VERDICT
RESPECT
THE
OPOSSUM
THEY'RE ON YOUR SIDE
Over the holiday my family did a
PowerPoint Night
I made that one in thirty minutes
because I had the tools for the job.
VBRC · 10TH ANNUAL · 2026
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A 40-Minute Briefing
Making Internal
Business Tools
With AI.
Stop chatting. Start building.
Christopher Kleinman · vbrc 2026
CHRISTOPHER KLEINMAN
MAKING INTERNAL BUSINESS TOOLS WITH AI
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VBRC · 04
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THE SHIFT
Most people use AI
to answer questions.
What everyone does
Ask it
things.
Type a question. Read the answer.
Copy. Paste. Done.
→ AI as advisor.
→
What you can also do
Have it
write software.
Describe a tool. It writes the code.
You open the file. It works.
→ AI as your in-house builder.
CHRISTOPHER KLEINMAN
MAKING INTERNAL BUSINESS TOOLS WITH AI
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VBRC · 05
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THE OBSERVATION
You pay for software.
You use five percent of it.
QuickBooks
— but you only use "send an invoice"
$35/mo
Jobber
— but you only use "who's on what truck"
$50/mo
HubSpot
— but you only use "a list with notes"
$25/mo
Typeform
— but you only use "get an inquiry"
$25/mo
Excel / M365
— but you only use "a clean chart"
$15/mo
A YEAR, ON FEATURES YOU MOSTLY DON'T USE
$1,800
What if you just built the five percent you actually use?
CHRISTOPHER KLEINMAN
MAKING INTERNAL BUSINESS TOOLS WITH AI
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VBRC · INTERLUDE
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A QUIET ASIDE
Some tools live forever.
Some live an afternoon.
Permanent
Your invoice tool. Your dashboard.
You'll use these every week. They grow with the business.
Disposable
A one-time signup form. A scheduling page for one event.
Built in an hour. Used for a day.
Software used to be too expensive for that.
Not anymore.
CHRISTOPHER KLEINMAN
MAKING INTERNAL BUSINESS TOOLS WITH AI
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VBRC · DEMO 01
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Demo 01 — Inquiry
Ask the questions
you actually need.
Replaces · Typeform · Jotform · ~$25/mo
~1 hour
→ Next: live tool
CHRISTOPHER KLEINMAN
MAKING INTERNAL BUSINESS TOOLS WITH AI
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VBRC · DEMO 02
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Demo 02 — Customers
Track customers.
Log calls. Set follow-ups.
Replaces · HubSpot · Salesforce · ~$25/mo
~3 hours
→ Next: live tool
CHRISTOPHER KLEINMAN
MAKING INTERNAL BUSINESS TOOLS WITH AI
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VBRC · DEMO 03
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Demo 03 — Schedule
Schedule the crew.
Track the trucks.
Replaces · Jobber · Housecall Pro · ~$50/mo
~6 hours
→ Next: live tool
CHRISTOPHER KLEINMAN
MAKING INTERNAL BUSINESS TOOLS WITH AI
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VBRC · DEMO 04
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Demo 04 — Invoice
Fill out a form.
Get a polished PDF.
Replaces · FreshBooks · QuickBooks invoicing · ~$35/mo
~3 hours
→ Next: live tool
CHRISTOPHER KLEINMAN
MAKING INTERNAL BUSINESS TOOLS WITH AI
27 / 36
VBRC · DEMO 05
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Demo 05 — Dashboard
Drag in a messy CSV.
Get a dashboard.
Replaces · Excel BI · ~$15/mo
~2 hours
→ Next: the messy CSV
CHRISTOPHER KLEINMAN
MAKING INTERNAL BUSINESS TOOLS WITH AI
29 / 36
VBRC · TALLY
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FIVE TOOLS · ONE FOLDER
All five demos · in this deck
~$1,800
a year.
Built in two days. Sitting in one folder. No subscription.
CHRISTOPHER KLEINMAN
MAKING INTERNAL BUSINESS TOOLS WITH AI
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VBRC · BOUNDARIES
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A QUICK CAVEAT
Some things still need
a real expert.
01
Regulated data
HIPAA, payment cards, payroll, anything the IRS wants — get those tools from someone whose name is on the line.
For example: we almost built a sign-on-screen tool for this talk — and didn't. Signatures and contracts belong with people whose name is on the liability insurance.
02
Customer-facing logins
A landing page is fine. A login form on the open internet is not. If strangers can poke at it, have it reviewed.
03
Expensive to be wrong
Tax math. Dosing. Anything where the wrong number costs real money. These need a licensed human in the loop.
These tools live inside your business. On your machine. For your eyes.
CHRISTOPHER KLEINMAN
MAKING INTERNAL BUSINESS TOOLS WITH AI
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VBRC · HOW TO
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HOW TO ACTUALLY DO THIS
You're not learning to code.
You're learning to direct.
1
Pick a tool. Then try another.
Claude Code · Cursor · Codex · Copilot · Gemini · ChatGPT — they're all great, and each one's a little different. Spend a month with one, then shop around.
2
Tell it what you want, in plain English.
"Build me a single HTML file that takes a CSV and shows a dashboard."
3
Open the file. Try it. Tell it what to fix.
It iterates with you. Like an assistant who never sleeps.
4
Your data stays on your machine.
Nothing you saw today phoned home. The five tools sit in a folder on a laptop.
CHRISTOPHER KLEINMAN
MAKING INTERNAL BUSINESS TOOLS WITH AI
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VBRC · CLOSE
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Build the tool
you need.
Not the tool someone else built for someone else.
CHRISTOPHER KLEINMAN
MAKING INTERNAL BUSINESS TOOLS WITH AI
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VBRC · TAKE IT HOME
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EVERYTHING YOU SAW TODAY
Open it on your phone
The whole deck.
The five tools.
Yours to keep.
christopherkleinman.com
CHRISTOPHER KLEINMAN
MAKING INTERNAL BUSINESS TOOLS WITH AI
36 / 36
<!-- This entire deck is one folder. -->
<!-- One index.html, one stylesheet, one script. -->
<!-- Five working tools, sitting next to it. -->
<!-- Press S again to close. -->
VIRGINIA OPOSSUM · DIDELPHIS VIRGINIANA
NORTH AMERICA'S ONLY MARSUPIAL NORTH OF MEXICO
50 TEETH — MOST OF ANY LAND MAMMAL IN N.A.
BODY TEMP ~94°F — HOSTILE TO MOST VIRUSES
LTNF PEPTIDE NEUTRALIZES SNAKE VENOM
LOW-COMPETENCE HOST FOR LYME-CARRYING TICKS
INVOLUNTARY DEATH-FEIGN UP TO ~4 HOURS
13 TEATS · UP TO 13 JOEYS PER LITTER
DIDELPHIDAE LINEAGE: 65–70 MILLION YEARS