The Swarm
LIVETwelve agents. One brief at 07:30. Five subscriptions gone — $3,720 a year.
RUNS · LAST 12 WEEKS
AI BUILDER · TRIATHLETE · FATHER · BUILT BEEKEEPER TO EXIT
I build AI systems. For fun, for business, and to run my own life.
Twelve agents, two lakes, no slides. I train CEOs the same way I build — in the work, not in a deck.
Cris Grossmann
Würenlos · ETH Zurich
FIND THE BIGGEST PROBLEM. CREATE FROM ZERO. TAKE IT TO THE LIMIT.
SYSTEM STATUSSEPTEMBER 2026
8LIVE
2BUILDING
1DISCOVERY
MORNING CHAINRUNS DAILY · 07:30
ON THE BENCH
My Workbench.
Twelve on the bench. The notes under each card are what broke, and what I kept.
MoneyLake
LIVE97 accounts, eleven years of books, off a $750/year subscription. Reconciled to the cent.
WHAT MOVED IN
16,094TRANSACTIONS
97ACCOUNTS
2,284PAYEES
11YEARS
0.00RECONCILIATION ERROR · CHF
NOTESThe Ledger
In the Chair
LIVEA boardroom you play. Three seats. Your decisions have a cost.
THE BOARD · 3 PLAYABLE SEATS × 5 BEATS
SEAT A
SEAT B
SEAT C
PCI
1999823 lines of Java. Two UDP ports. The first version of Beekeeper, found in a zip 26 years later.
FOUND IN A ZIP · 28 KB
NOTESPCI, 1999
HealthPane
LIVE · 14Y3,778 sessions, 8,590 nights. Questions Garmin, Strava and a trainer could not answer.
TRAINING VOLUME · 2012 → 2026
20122026
Home Cooker
LIVECalendar and training load in. Food plan, shopping list, recipes out. Once a week.
WEEKS PLANNED · MON → SUN
W29W33
Smart Home
LIVELight, climate, presence. The house has run itself since 2023.
A TYPICAL DAY
001224
AI Race Engineering
LIVEIt missed the race by two minutes. It called the split that mattered to 4 seconds.
COURSE PROFILE · 5 CLIMBS
Happiness Tracker
BUILDINGOne number a day. Say why out loud. The coach finds the pattern you can't see while you're in it.
THE ONLY SCALE IN THE PRODUCT
1 · WORST10 · BEST
AI Coaching
LIVEReads weeks of pattern. Answers the question they are actually asking. 30+ paying users, 10,000 messages.
WHERE THE WORDS GO
YOU→COACH→NO HUMAN
YeastUp
BUILDINGSwiss biotech production data. Chemical engineering, back in use.
WHERE IT IS
SCOPED
DATA IN
MODEL
IN USE
DeRisk my Ride
EARLY DISCOVERYGPX in. A map out — every segment scored for how likely it is to hurt you.
TÄGI BIKE COURSE · 132 SEGMENTS SCORED
LOW
WATCH
HIGH
FROM THE BENCH
Building Notes.
Eight notes. No placeholders. All notes + RSS →
PCI · 1999
READ IT →
The internal comms tool I built at 17 — Beekeeper was the second one
JINI · 1999 → 2026
READ IT →
I had the spec. Twenty-seven years later I built the house
THE LEDGER
READ IT →
Eleven years of my money as a database — five things it knew that I did not
THE LIFE GRID
READ IT →
Two calendars, fifteen years — work and life on one grid
THE HEALTH LAKE
READ IT →
Fifteen years of my own data — the health lake, explored
THE RACE LEDGER
READ IT →
Seventy-five start lines since 2012 — every race, one direction
AI RACE ENGINEERING
READ IT →
Two races, seven days, a 4-second call — the full story
THE SWARM
READ IT →
Twelve agents, two lakes, one morning — the full build
HOW I BUILD
Four rules.
No slides.
If it hasn't run in production against my real life, it's an opinion.
Never trust the output.
AI is fast. It is also wrong in ways that look finished. No test, no release.
Automate the boring, keep the judgment.
The agents decide what I look at. I decide what I do. That line never moves.
Own the data.
Every system here writes to something I control. Subscriptions end. Companies pivot. Fourteen years of my own data doesn't.
STORY
The long race.
Chemical engineer. Fourteen years of Beekeeper — idea to 7M users and an exit. Now no company to run, on purpose: a bench of systems I actually use, and the time to work out what sustains this rather than what replaces it.
THE FULL STORY →WORK WITH ME
Three other ways in.
A problem nobody can crack
01 — BUILDOr a vision everyone calls unsolvable. I take two or three at a time, hands on the keyboard, next to your team. Not a deck about what they should do.
Your team, building with AI
02 — TEAMYour real problem in the room. We pull it apart and rebuild it live. They walk out having built something — not having watched me build it.
Someone on your stage
03 — SPEAK7M users. What the exit didn't change. What happens when you build AI as an operator. English, German or Spanish.
REACH
Write me.
cris@grossmann.ai. I read every one.
WÜRENLOS, SWITZERLAND