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Jeseok Lee (St. Lee) is the founder and CEO of D-ALabs LLC, building SignGPT and Lembic. Engineer at Neumous Inc.; biomedical engineering undergraduate at Gachon University.

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Jeseok Lee (St. Lee)

Founder & CEO, D-ALabs LLC · Engineer, Neumous Inc. · Biomedical Engineering, Gachon University

I write here about building SignGPT and Lembic at D-ALabs, about firmware and AI at Neumous, and about biomedical engineering coursework that keeps showing up in product code. The aim is honest notes that travel — pieces a stranger could pick up and take an idea away from.

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What I'm Working On Now

Shipping the next version of SignGPT.
Hardening Lembic for production agent workloads.
STM32 firmware and applied AI work at Neumous.
Coursework in biomedical instrumentation and medical imaging at Gachon.
Reading on beamforming, ultrasound transducer arrays, and modern agent-evaluation methodology.

As of Tuesday, May 19, 2026. See recent posts for the long form.

Start Here -- Curated Reading

If you have time for one posts, read these.

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May 20, 2026 | founder-notes | by Jeseok Lee

Why read this: I just start this for the new world

What I Write About

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Posts in the founder-notes category.

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