GitHub Stack Overflow LinkedIn Medium Blog X

Craig P. Motlin

Model-Driven Design • Developer Productivity

Tech Lead of Developer Productivity Engineering. Top contributor to Eclipse Collections and creator of open-source projects. Focused on developer productivity through AI, temporal data, and programming language design.

Projects

All projects listed here are open source. Below are my contributions organized by affiliation and project type.

Two Sigma Open Source

Liftwizard

A collection of utilities for Dropwizard

Links

GitHub Docs

Features

Dropwizard BundlesTemporal DataDynamic SQL

Tech Stack

DropwizardReladomo

Language

Java

License

Apache-2.0

CheckStyle Results Reporter

GitHub Action to convert CheckStyle checkstyle-result.xml into annotations.

Links

Marketplace GitHub

Features

Code QualityCI/CD AutomationCheckStyle Integration

Tech Stack

GitHub Actions

Language

TypeScript

License

Apache-2.0

forbid-merge-commits-action

A GitHub Composite Action to forbid merge commits inside pull requests

Links

Marketplace GitHub

Features

Commit HistoryPull Request Validation

Tech Stack

GitHub Actions

Language

TypeScript

License

Apache-2.0

aggregator-creator

CLI tool that creates Maven aggregator POMs from a set of repositories.

Links

GitHub

Features

Data AggregationMavenMulti-ModuleCode Generation

Language

TypeScript

License

Apache-2.0

Goldman Sachs Open Source

eclipse-collections

Contributions to eclipse-collections

Links

GitHub My Contributions

Eclipse Collections Kata

Eclipse Collections Katas

Links

GitHub

Features

Interactive LearningUnit TestsCode Katas

Tech Stack

JavaJUnit

Language

Java

License

EPL-1.0

Personal Open Source Projects

Klass

Klass is a rapid application development framework for Java with first class support for temporal data.

Links

GitHub Docs Website

Features

Model-Driven DesignCode Generation

Tech Stack

ANTLR

Language

Java

License

Apache-2.0

factorio-prints

A site to share blueprints for the game Factorio.

Links

GitHub Website

Features

Blueprint SharingCommunity Platform

Tech Stack

Firebase

Language

TypeScript

License

MIT

factorio-blueprint-playground

Interactive playground for Factorio blueprints with live editing and visualization.

Links

GitHub Website

Features

Blueprint EditingLive PreviewInteractive Playground

Tech Stack

Cloudflare Pages

Language

TypeScript

License

MIT

Hex Zero

A hexagonal puzzle game built with HTML5 Canvas

Links

GitHub Play

Features

Puzzle GameSpatial ReasoningInteractive Graphics

Tech Stack

HTML5 Canvas

Language

TypeScript

License

MIT

motlin.com

This site! Personal blog and technical writing platform built with Docusaurus. Features my portfolio, blog posts, and technical documentation.

Links

GitHub Website

Features

Technical BloggingDocumentation

Tech Stack

DocusaurusReactMDX

Language

TypeScript

License

MIT

Third-Party Open Source Contributions

Contributions to major open source projects

Jekyll

50,461 My 2 PRs

Transform your plain text into static websites and blogs

Netty

34,333 My 5 PRs

An asynchronous event-driven network application framework

repomix

18,551 My 1 PR

Contributions to repomix

Checkstyle

8,651 My 1 PR

Tool for checking Java source code for adherence to a Code Standard

dropwizard

8,550 My 2 PRs

Contributions to dropwizard

junit4

8,534 My 2 PRs

Contributions to junit4

logback

3,140 My 5 PRs

Contributions to logback

slf4j

2,438 My 3 PRs

Contributions to slf4j

git-scm.com

2,285 My 1 PR

Contributions to git-scm.com

prettier-java

1,156 My 1 PR

Contributions to prettier-java

factorio-blueprint-editor

384 My 1 PR

Contributions to factorio-blueprint-editor

factorio-blueprint

107 My 1 PR

Contributions to factorio-blueprint

git-test

74 My 1 PR

Test your commits in an automated fashion

avalon

1 My 2 PRs

Contributions to avalon

Conference Talks

2014

QCon NY 2014

Parallel-lazy Performance: Java 8 vs Scala vs GS Collections

Watch Video

2015

Scala Days 2015

Scala Collections Performance

2015

JavaOne & GOTO Chicago 2015

GS Collections and Java 8: Functional, Fluent, Friendly, and Fun

Watch Video

JVM Language Summit

Multiple presentations on collections and performance