Most of what I build starts as a demo for a talk, a class, or a question I couldn’t stop thinking about. Everything here has a write-up, and most of it has code you can deploy yourself.
Regulated markets on AWS
Pre-trade risk controls (SEC Rule 15c3-5)
Streaming market access controls with Kafka and Spark, inspired by the Knight Capital incident.
Write-up · Code
More in the Regulated Markets on AWS series.
AI and agents
Vinyl collection chatbot with FastMCP
A serverless MCP server that lets an AI agent query a record collection.
Write-up · Code
GitHub PR reviewer with Bedrock Agents
An agent that reviews pull requests using Bedrock Agents and action groups.
Write-up
AWS cost optimization agent
A Bedrock agent that reads Cost Explorer data and recommends ways to cut your bill.
Write-up
Company knowledge bot
Slack plus Bedrock Knowledge Bases for instant answers from your internal docs.
Write-up
Serverless URL shortener, built with Kiro
Roughly 15 hours of Terraform done in 3 with an agentic coding tool.
Write-up · Code
Teaching
Cracking the Cloud survey app
A small serverless Pokémon survey app I use to show students what the cloud can do.
Write-up · Code
Adding Cognito authentication to the survey app
The follow-up: securing the same app with Amazon Cognito.
Write-up · Code
Student branding starter
A template for students to launch a personal site and online presence.
Write-up · Code
This site
lukelittle.com
Hugo on S3 and CloudFront, deployed by GitHub Actions with Terraform, for about $3 a year.
Write-up · Code\