klein@nyc-vps:~$ whoami
New York independent since jan 2026 75 containers up building full time
Twelve years selling enterprise software and working on buildings. Family-office acquisitions, multifamily lending, then SaaS.
In January I stopped and started building the software myself. I'm not an engineer by training. I direct coding agents, read the diffs, run the tests, and own what ships. The typing is mostly theirs. The judgment calls are mine.
Now there are 75 containers on a VPS I rent, a store that takes real orders, and a research pipeline whose audit refuses to publish what it can't verify. That last one is my favorite.
live · selling
A store that sells shirts I drew. Postgres catalogue, PayPal checkout, print-on-demand sync, a React admin I run it from. It has taken real orders and shipped them. 209 tests, because a double-submit once threatened to print two shirts.
express
postgres · paypal
pod partner
live · open
USPS publishes this as a spreadsheet that changes under you. I turned it into an API that updates daily, refuses to publish anything that fails sanity checks, and ships JSON, per-state JSON, CSV and SQLite with change sets and hashes. Since February. Zero servers.
github actions
sqlite · openapi
json schema
private · running
Deal flow for a world I spent a decade in. People and property directories, entity resolution for the twelve ways a company gets typed into a CRM, one timeline across calls and email, replies sorted before I read them. 44 of 44 acceptance checks. The last three bugs were found by the suite, not by me.
go · typescript
postgres · bullmq
private · lab
A question goes in, an audited report comes out. Planning, retrieval, structured evidence, analysis, then a deterministic pass that checks every number and quote against the source it claims. The interesting part isn't the report. It's the audit refusing to publish.
python · pgvector
sse · postgres
tool · mine
Which lots can actually carry the floor area you need? Lot area times FAR is wrong twice. Wide streets get more building than the city's own file says, so I measure building line to building line off tax-lot polygons instead. The difference is up to 23% of a building.
python · pluto
shapely · duckdb
live · production
A box behind NAT dials out and gets a public HTTPS address. Both ends in Go, client built for ARM and running on the device. Request correlation, serialised writes, and in-flight requests that fail loudly when the peer drops instead of hanging forever. Mostly I wanted to know if I could write it.
go · websockets
arm · docker
the front door
The only thing here a stranger can walk into and use. Shirts printed when someone buys one. It has taken real orders and shipped them.
# the audit is the product, not the report
klein@nyc-vps:~$ ./contact --now
If you're working on harnesses, evals, local inference, or a messy process that needs fixing, say something. I'm around. If you think I'm wrong about something above, say that too.
try: work, history, contact, uptime, whoami
a real input, because a fake one would be worse