Hello friend, my name is

Lachlan Jacobs.

and I build captivating user experiences.

About Me

I’m Lachlan, a full stack engineer in Sydney. I turn ambiguous problems into production-ready software with the best user experience as the north star.

I’m also a Pi power user, building open-source tools for multi-agent workflows, memory and process management.

Languages

  • Python
  • TypeScript
  • Rust
  • Kotlin

Frameworks

  • React
  • Next.js
  • Node.js
  • Convex

Data and cloud

  • Postgres
  • MongoDB
  • GCP
  • AWS

Agents and tooling

  • LangChain
  • Agents
  • MCP
  • CLI / TUI

Some Things I’ve Built

Dewmorrow

A morning and night skincare routine, with Cap keeping the record. Tick off your steps, take a night off when you like, and see how your skin's really been. Open the app.

  • SwiftUI
  • React
  • Cloudflare Workers
Three Dewmorrow iPhone screens: the morning routine at sunrise, tonight's routine with a night off, and the product shelf

interragate

See what your Terraform plan could break before you apply it. Open source.

  • Go
  • Terraform / OpenTofu
interragate's dependency map tracing a database replacement to the resources that depend on it, beside the Terraform edit that caused it

computer, listen

I wanted to talk to my computer without paying for it, so I built free Mac dictation that runs entirely on device.

  • Swift
  • SpeechAnalyzer
  • Foundation Models
  • three.js
computer, listen

CoreTrace

Explore geological survey data on an interactive map. Compare original measurements with cleaned results and see where each finding came from.

  • Polars
  • Django
  • PostGIS
  • MapLibre
CoreTrace

Nimbus

A PlayStation 2 emulator running in the browser. PCSX2 compiled to WebAssembly, solving the performance limits that held back earlier browser-based emulation. Bring your own BIOS and games. See how it works.

  • WebAssembly
  • PCSX2
  • Cloudflare Workers
Nimbus

Paper Trail Visas

Helps people work out which Australian visas fit their passport, age, and plans. Includes eligibility checks, cost estimates, and document checklists, with links to official sources.

  • TypeScript
  • React
  • Convex
  • Cloudflare
Paper Trail Visas

SkiMate.AI

A ski trip planner with snow forecasts, resort comparisons, and an AI assistant. Search resorts worldwide or ask where to ski with your Epic or Ikon pass.

  • LangChain
  • NextJS (App Router)
  • Dynamic UI
SkiMate.AI

Shaken AI

Shaken is a cocktail companion and guide that helps you build the perfect cocktail and find the ideal bar to enjoy it

  • NextJS
  • AI / LLMs
  • Python
Shaken AI

TOMO

TOMO was an ambitious Web3 project that branched into the Web2 marketing world. Users would be rewarded for utilizing their social capital and businesses would benefit from word of mouth style advertising

  • React Native
  • TypeScript
  • AWS
  • NextJS
TOMO

Open Source

Tools for agent workflows and local development, shaped by everyday use.

whiskd

A lightweight process manager that lets agents and humans start, detach, inspect, reattach, log, and stop long-running processes.

  • Rust
  • CLI / TUI
  • Process management
View on GitHub
whiskd mascot, a sketched white tabby cat face

Pi tooling

Extensions I build for the Pi coding agent: observable subagents, background review, persistent memory, and usage analytics.

Browse Pi tooling
gang mascot, a crew of agent animals at their monitorsmicro-manager mascot holding a review checklist over a terminalno-block mascot hopping over a blocked task

interragate

Interactive reports for Terraform and OpenTofu plans.

  • Go
  • Terraform / OpenTofu
View all repositories

So what now?

Get In Touch

Sounds like I'd be a good fit for a position or project? Now is the time to reach out!