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St. Lee
Jeseok Lee
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.

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.

May 20, 2026  |  founder-notes  |  by Jeseok Lee
Why read this: I just start this for the new world

What I Write About

Posts in the founder-notes category.

Latest Posts See all »

May 20, 2026  |  founder-notes  |  by Jeseok Lee
I should to go to big leauge