An Introduction to Rells, from Aaron Sim

February 23, 2026

How founder Aaron Sim introduced Rells

Rells (reengineered cells) were introduced by Aaron Sim as a core direction at Dstack Labs: programmable living systems that can be designed for diagnostics, therapeutics, and computational biology.

The central idea is simple: biology should not be treated as static snapshots. Instead, living systems can be engineered to sense, adapt, and report continuously.

Rells are built with a multidisciplinary stack that combines:

  • Synthetic biology and cellular engineering
  • Electrochemistry and biomaterials
  • Microfluidics and biosensing interfaces
  • Computational plus biological design

This introduction established the long-term vision behind Deathstack and CBM: move from intermittent testing toward continuous, real-time biological intelligence.

At Dstack Labs, Rells represent the first layer of that vision — biological systems designed with engineering rigor to expand precision diagnostics and personalized health.