I build AI-native tools and ship them. CLIs, agents, MCP servers, and full-stack web apps. Thirty years in, I build and manage the AI agents that do the heavy lifting: directing more than typing, but close enough to the code to know when something's wrong. What I care about hasn't changed: tools that do one thing cleanly, READMEs a stranger can follow, and code another engineer understands in sixty seconds.
Below is what I've been making lately. If you'd rather ask than read, my site answers questions about me in my own words: haimdimer.com.
- earshot — Turns books into multi-episode podcasts. Next.js 16, Neon, and Cloudflare R2, built to actually listen to.
- code-index — Semantic code search as an MCP server, backed by Milvus. So an agent can find code by meaning, not just grep.
- live-poll-kit — Drop-in live polling with QR codes for talks and classrooms. Vercel plus Neon, five-minute setup.
- mockup-compare — Ask for ten design mockups and get five grounded plus five that break the rules. A Claude skill and a dependency-free viewer to judge them side by side.
- marked
— A markdown parser and compiler. Built for speed.
- postcss
— The CSS transformer behind Tailwind, Next.js, and autoprefixer, and much of the modern web build toolchain.
- burn
— A Rust deep-learning framework and tensor library built for flexibility, efficiency, and portability across backends.
- gitoxide
— A pure-Rust implementation of Git, built as fast and safe command-line tools and libraries.
- sktime
— A unified framework for machine learning with time series.
- sqlfluff
— A modular SQL linter and auto-formatter with support for many dialects.
- sqlglot
— A Python SQL parser, transpiler, and optimizer spanning 20+ SQL dialects.
- marshmallow
— A Python library for converting complex objects to and from simple datatypes, with validation.
- pest
— The Elegant Parser.
- chroma
— A general-purpose syntax highlighter in pure Go, with lexers for hundreds of languages.
- minify
— A fast collection of Go minifiers for HTML, CSS, JS, JSON, SVG, and XML.
- dprint
— A pluggable, configurable code-formatting platform that unifies many formatters behind one tool.
- participle
— A parser library for Go that builds parsers from annotated struct definitions.
- mago
— Mago is a toolchain for PHP that aims to provide a set of tools to help developers write better code.
- skipper
— An HTTP router and reverse proxy for service composition, including use cases like Kubernetes Ingress.
- kin-openapi
— OpenAPI 3.0 and 3.1 and 3.2 (and Swagger v2) implementation for Go (parsing, converting, validation, and more).
- fast-xml-parser
— Validate XML, Parse XML and Build XML rapidly without C/C++ based libraries and no callback.
- builderbot
— 🤖 Crear Chatbot WhatsApp en minutos. Únete a este proyecto OpenSource.
- pflag
— Drop-in replacement for Go's flag package, implementing POSIX/GNU-style --flags.
- Satty
— Satty - Modern Screenshot Annotation.
- static-web-server
— A cross-platform, high-performance and asynchronous web server for static files-serving. ⚡.
- msgpack-python
— MessagePack serializer implementation for Python msgpack.org[Python].
- es-module-lexer
— Low-overhead lexer dedicated to ES module parsing for fast analysis.
- litData
— Speed up model training by fixing data loading.
- enmime
— MIME mail encoding and decoding package for Go.
- go-yaml
— The YAML org maintained fork of https://github.com/go-yaml/yaml.
- kamu-cli
— Next-generation decentralized data lakehouse and a multi-party stream processing network.
- improved-initiative
— Combat tracker for Dungeons and Dragons (D&D) 5th Edition.
- Containarium
— Open-source agent runtime — SSH-native isolation, eBPF egress policy, Kubernetes + LXC backends, GPU passthrough, MCP-native CLI.
- capital-gains-calculator
— Calculate UK capital gains from broker exports — supports Charles Schwab, Freetrade, Hargreaves Lansdown, Interactive Brokers, Morgan Stanley, Sharesight, Trading 212, Vanguard and a custom RAW format.
- fontc
— Wherein we pursue oxidizing (context: https://github.com/googlefonts/oxidize) fontmake.
- integreat-cms
— Simplified content management back end for the Integreat App - a multilingual information platform for newcomers.
