Ivan Zaitsev Write to me

One builder, a fleet of AI agents, apps people install.

I build AI products end to end, or advise teams who build them. Each case below links to a store or a repo.

Loco Group trip planner

A group trip lives in ten chats. Flights land at different times and nobody knows where to sleep.

iPhone first. Android came only when a named person needed it.

In the App Store since 8 October 2026, now version 1.1.18.

Tell me what you are working on

Updated · 188 pull requests merged in public repos, last 7 days · 2 apps in stores

Three cases

Loco Group trip planner

Problem
A group trip lives in ten chats. Flights land at different times and nobody knows where to sleep.
What the agents did
Agents built the iPhone app, the Android app and the web plan from one roadmap.
What I decided
iPhone first. Android came only when a named person needed it.
Result
In the App Store since 8 October 2026, now version 1.1.18.

Teyla Control room for AI agents

Problem
Parallel agents on one Mac ran out of memory, spent tokens blind and forgot corrections.
What the agents did
Agents wrote the CLI, the hooks and the review gate in 486 merged pull requests.
What I decided
One policy for every agent tool, and no merge without a review from a second provider.
Result
Open source under Apache-2.0. Anyone can install it today.

Wine Cave Cellar sommelier

Problem
A cellar list says what you own. It does not say what to open tonight.
What the agents did
Agents built the cellar record and the advice that learns from your verdict on each bottle.
What I decided
Advice picks only from bottles you own, and each pick shows its reasons.
Result
In the App Store and Google Play, version 1.0.

Receipts from public records

Pull requests merged in public repos, last 7 days
188 as of
Public repositories
13 as of
Teyla: pull requests merged, all time
486 as of
Loco: App Store version
1.1.18 as of
Loco: Google Play
listed as of
Wine Cave: App Store version
1.0 as of
Wine Cave: Google Play
listed as of
Apps in stores
2 as of

Tell me what you are working on.

A build, advice, or a product to try: write two lines and leave a way to reach you.

Email, Telegram or a link

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