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Hi there 👋

I'm Chris, a software engineer at heart and co-founder of flyweight.io.

AI

• AI Retry: Intelligent retry and fallback mechanisms for AI SDK models

• AI Stream Utils: Filter and transform UI messages while streaming to the client

• Chunkdown: A tree-based markdown text splitter that understands document structure to create semantically meaningful chunks for RAG applications

• Chunk Visualizer: A web-based playground to visualize and compare chunks from different text splitting libraries

AWS

• AWS Signature V4: This project includes two libraries: aws-sigv4-fetch and aws-sigv4-sign, which are used to sign HTTP requests with AWS Signature Version 4 (SigV4).

• Amazon S3 URL: A simple formatter and parser for the various Amazon S3 URL formats.

• Middy Store: Middleware for AWS Step Functions that automatically stores and retrieves payloads exceeding the 256KB maximum input or output size.

• S3 Downloader: Quick commands to download and open S3 URIs directly in VSCode

• Serverless Exports Plugin: Exports environment variables and stack outputs from your Serverless project to a local file.

• Serverless CloudWatch Logs Insights Plugin: Automatically creates CloudWatch Logs Insights queries for all Lambda functions in your Serverless project.

Shopify

• Shopify Search Query Builder: A tool for constructing queries for Shopify's GraphQL API search syntax.

• Shopify Currencies.js: A simple wrapper to access Shopify's currency conversion rates from Node.js

Development & Testing

• Git Pull Run: Automatically runs commands like npm install when fetching changes from git, but only if certain files have been modified.

• expect.toMatchSchema(): Check data against any standard schema (Zod, Valibot, ArkType)

• expect.toMatchPrompt(): An AI prompt matcher for Jest and Vitest.

• Snapshot Serializers: A collection of snapshot serializers for Jest and Vitest that help manage dynamic values in test snapshots.

Libraries

• f-strings: Template function with embedded if-else conditions and automatic dedentation

• Millis.js: A tiny and dependency-free library for date time arithmetic with a chainable and immutable API.

• Uniquely Typed: A library to create opaque types with unique symbols.

• Create Typed Env: A library to create a type-safe proxy for accessing environment variables with optional fallback values for developemnt and testing.

Hackathons

• Lambdalet.AI: An AI-powered bookmarking and read-it-later service that uses a dynamic javascript bookmark (bookmarklet) to send the current page's HTML to an AWS Lambda function. The Lambda function invokes an LLM to extract the page's main content - ignoring headers, footers and other non-content elements - and saves it to a Notion database.

• PromptThis.AI: A Chrome extension created for the Google Chrome Built-in AI Challenge that seamlessly integrates AI capabilities into your browsing experience.

• AdaGPT: A GitHub Action created for the GitHub + DEV 2023 Hackathon with OpenAI integration that responds to comments on issues and pull requests.

Experiments

• Highlights: Extracts highlighted text from images using OpenCV and OCR (Tesseract) directly in the browser, without requiring a backend API. It is based on the original Python implementation.

• Lambda Readability: Extracts readable content from a web page by running Chromium and Readability.js on AWS Lambda.

• Puppeteer Language Experiment: Tests various methods to change the browser language using Puppeteer with Chrome.

• Claude Terminal Runner: Simple VSCode extension to run Claude from the context menu on any folder

GitHub Templates

• Single Package TypeScript Template: Opinionated setup for a single package TypeScript project.

• Serverless TypeScript Template: Opinionated setup for a Serverless TypeScript project.