# Maro Labs

> Maro Labs is a one-person software company based in South Korea, founded in April 2026 (domain: marolabs.kr). It makes two macOS apps, Maro Portal and Maro Writer. Claude is the company's main tool: over 70% of its important work (direction, design, planning, and key reviews) runs on Claude, other AI workers take the rest (mainly implementation and second reviews), and Claude is connected inside both products. The founder is a math teacher, not a professional programmer.

Both products are installed and running as macOS apps, and the founder uses them for real work.

## Company

- Name: Maro Labs
- Website: https://marolabs.kr/
- Contact: founder@marolabs.kr
- Founder: Maro (math teacher, not a professional programmer)
- Founded: April 2026 (first software built with AI)
- Location: South Korea
- Team: one person, the founder (a math teacher who builds software with AI)

## Products

- [Maro Portal](https://marolabs.kr/#portal): a local-first personal AI operating system for macOS (native app plus a local Node.js server). You talk to Maro in one place and hand off work; each task goes through six steps (born, checked, run, evaluated, harvested, closed) and is checked by a separate reviewer before it closes. Conversations, decisions, and lessons are kept as records: personal wiki, knowledge map, work routes and chronicle, library, and a work encyclopedia of more than 200 documents. Model-neutral: it connects to Anthropic Claude, OpenAI Codex, and an on-device model.
- [Maro Writer](https://marolabs.kr/#writer): a standalone macOS co-writing app for long-form and serialized fiction, spun out of Maro Portal's writing extension. Chapter-by-chapter story memory, three co-writing modes (AI-led, writer-led, writing together), a glossary of several hundred martial-arts terms, a name finder, genre themes, and a bookshelf for multiple works. AI drafts join the manuscript only when the writer adopts them.

## How Claude is our main tool

- October 5, 2026: the founder made it official, "the main lane is Claude." Claude lanes plan the work, split it into tasks, and hand implementation to other workers.
- Over 70% of the important work runs on Claude: direction, design, planning, and the key reviews. Other AI workers take the rest, mainly implementation and second reviews.
- October 8, 2026: 8 of 17 active work panes ran on Claude. Implementation and second reviews are spread across the other panes, so Claude holds 8 of 17 panes while carrying over 70% of the important work.
- Control room: the founder gives direction in a Claude session. 1,125 founder decisions were logged from the Claude control room (September 26 to October 8, 2026), each with its original wording and a pointer to the session.
- Review: Claude is the reviewer on the work that matters most. 63 closed pieces of work were reviewed by Claude, with receipts kept.
- Maro Writer was specified in a Claude Code session on September 27, 2026, passed 309/309 regression checks that day, and was installed as its own macOS app two days later.
- Inside the products: Maro Portal's server has Claude connected as a provider; Maro Writer has a Claude connection for co-writing.
- Running the company: company research (product fact sheet, name and trademark checks) is compiled in a Claude lane, with a source attached to every line.
- Claude timeline: May 2026, a management app for the founder's own math class planned in conversations with Claude; August 2026, Claude Code joins the Maro Portal 2 rebuild; September 2026, Maro Writer specified in Claude Code; October 2026, Claude becomes the lead lane for direction, design, and review.

## Company timeline

- April 2026: Maro Labs founded; first software built with AI
- May 2026: a management app for the founder's own small math class
- July 2026: Maro Portal, first version
- August 2026: Maro Portal 2 rebuilt from the ground up
- September 2026: Maro Writer split out as its own macOS app
- October 2026: company website and email at marolabs.kr

## Record (counted from the project's own records, October 8, 2026)

- 470 closed work records
- 424 closed after review
- 1,125 logged founder decisions (September 26 to October 8, 2026)
- 493 test files
- 128 contract documents
- 117 product build receipts
- 799 dated work output folders

## More

- [Full summary (Markdown)](https://marolabs.kr/about.md)
- [Website](https://marolabs.kr/)