Guy Grigsby · aeryx

A studio for agentic software.

Agent runtimes, AI tooling, and the systems that hold them up. Built in Go, in Denver.

aeryx
aeryx ~ %

What I'm building

Projects

  • Talon — the grip

    Fast, secure agent runtime.

    work in progress

    github →

  • Jess — the strap on the falcon's leg

    Streaming agent harness with memory and skills.

    work in progress

    github →

  • Perch — where it rests

    Shared foundation for daemon and CLI apps: transport, config, lifecycle.

    work in progress

    github →

  • Rookery — the nesting colony

    Service template that scaffolds a daemon and CLI on Perch.

    work in progress

    github →

AI research

Research

Experiments and writeups, mostly on local inference and the internals of attention. Formal profile on Hugging Face →

  • Differential Transformer on Apple Silicon

    Paired-init reproduction of differential attention in MLX with custom Metal kernels. An honest negative at small scale: no generalization edge over vanilla, cross-checked against the PyTorch reference.

    writeup → Hugging Face →

More as I finish them.

About

Guy Grigsby

Software engineer at HashiCorp, based in Denver. Building agentic systems and AI tooling, mostly in Go. The projects above are works in progress, the things I'm shaping now.