Projects

Ultra-lightweight personal AI assistant framework

A fast, secure, and efficient AI automation tool built in Crystal. 2MB binary, ~5MB RAM, <20ms startup. Supports multiple LLM providers, chat channels, vision, voice, and kernel-level sandboxing.

Reduce cognitive load when reviewing AI agent work

Standalone preview skills for visualizing files in the browser. Transform plans, diffs, and data into navigable previews. Zero dependencies, self-contained, works with any AI coding agent.

MCP server for rendering Mermaid diagrams in Claude Code

An MCP server that enables Claude to render and preview Mermaid diagrams with live browser updates.

Generate Zwift workouts using natural language

An AI-powered tool that lets you create structured Zwift workouts by describing them in plain English. Combines AI generation with direct manipulation for precise control.

Learn a new language, bridge new cultures every day

An app that helps you learn languages by creating daily phrases using OpenAI.

Create Garmin Connect workouts using generative AI

This project allows you to create complex Garmin workouts using natural language input processed by OpenAI's GPT.

Fully transparent on-chain donations

Here at Donaty.io we believe that everyone should have the opportunity to give back to the community.

See how top world companies react to Russia invasion

Do not support the agressor #StandWithUkraine

Code style linter for Crystal

A single-celled animal that catches food and moves about by extending fingerlike projections of protoplasm.

A curated list of awesome Crystal code and resources

The goal is to have projects mostly stable and useful for the community.

Design patterns implemented in Crystal language

The goal is to have a set of GOF patterns for Crystal users.

Announce new project, blog post, version update or any other Crystal work

Crystal [ANN] is intended to spread announcements with community. A new announcement will appear on this website, on Twitter and distributed over RSS. People being interested will not miss it.

A tool to preview, search and inspect JSON:API payloads

Supports sideposting and sideloading for complex JSON:API document structures.

An Emacs plugin for Ameba static code analysis

Intended to help people use Ameba tool directly in Emacs.