Cortney Harrington

Hi, I'm Cortney and I like to build apps & make films.

I also like to train unique AI models for specialized image generation and build and optimize AI inference systems. In addition to these things, I enjoy writing, designing physical and aesthetic products, and creating art.

Over the past few years I have built and shipped a steady stream of projects. I started with Modern Art AI, a fashion design web app powered by my custom image generation and sewing pattern models. Next came Craft Rabbit, an iOS app for creating craft, baking, and decor images along with instructions to make them in the real world. I then built Module Dog, a web app that helps teachers create rigorous lesson plans and learning materials with AI, followed by SimuLeopard, a web app for engineering design, simulation, and manufacturing intelligence. Most recently I have been building software for filmmakers, shipping the CineLeopard video editor and the CineLeopard Production Planner, both native macOS apps available now on the Mac App Store.

For inquiries contact

cortney@cortneyharrington.com

CineLeopard Production Planner

https://apps.apple.com/us/app/cineleopard-production-planner/id6781051245?mt=12

CineLeopard Production Planner is a native macOS app for AI video pre-production. Version 1.1 is available now. The app turns scripts and ideas into organized, shot-by-shot production plans. You can break a script into color-coded scenes and shots, build structured image and clip prompts, keep characters, locations, and props consistent with element and reference libraries, and generate stills and video clips right in the app. When a plan is ready you can export an edit-ready bundle with prompts, stills, voiceover, and a timeline manifest that imports directly into the CineLeopard video editor. The Large Canvas is a full-width workspace for multi-scene projects with an agentic make me a video workflow. The agent walks a brief through research, script, images, clips, and voiceover, then stitches your title card, clips, and voiceover into a finished video. The most recent changes to the Large Canvas agent workflow let you bring your own script and have the agent stage it faithfully, keeping every line of dialogue word for word. They also let you attach reference images to your cast and locations so the same faces and settings carry through every shot.

CineLeopard Video Production Company

https://cineleopard.com

The website for my video production company, built as a TypeScript site. It serves as the home for CineLeopard's video production work.

SimuLeopard Version 2

https://simuleopard.com

SimuLeopard now encompasses a wide array of engineering design and intelligence tools. In addition to its original simulation functionality, SimuLeopard helps users create first principles engineering designs, conduct agentic first principles materials research, engage in agentic manufacturing planning and sourcing workflows, and produce a wide range of immersive creative media. SimuLeopard's rendering capabilities let you create product and machine images in many popular industrial design styles. In addition to simulations and physics-based analysis, SimuLeopard gives builders and makers concrete starting points for prototyping, accelerating the process of moving from ideas to atoms.

SimuLeopard

https://simuleopard.com

I am working on a new project called SimuLeopard. It is a web app that lets you create code-based engineering, manufacturing, and physics simulations from text, image, and CAD prompts and visualize your simulations with technical images and cinematic videos.

Module Dog

https://moduledog.com

This is my first AI education project. Module Dog is a web app that lets teachers create engaging and rigorous lesson plans and learning materials using AI. Teachers can save their specifications for each class, quickly generate lesson materials like texts and handouts, search for images and texts to add to their modules, and even export their lessons as formatted PDFs and slide presentations. Many of the teachers I work with have expressed their dissatisfaction with some of the online curriculum platforms they are encouraged to use. When I was a multi-subject middle school teacher, the lesson planning involved was extremely time-consuming. Module Dog would have helped me tremendously. I also wanted to make something that would address the real issues I see in high school classrooms involving lack of engagement, lack of rigor, and lack of substantial reading and writing practice. Module Dog is meant to be simple, straightforward, and effective. It lets you do what is best for the students quickly and easily. I built Module Dog with Next.js/React, Node, Supabase, Stripe, and various other APIs. I wanted to make something that could help me become more skilled at building complex databases and Module Dog has been that project.

Craft Rabbit

https://craft-rabbit.com

This iOS app lets users create craft, artisanal baking, interior decor, and architectural images. Users can then get text instructions to make what is in their image. They can also upload their own images to ask questions and get instructions. I like AI projects that connect users back to making physical things in the real world. I built this with Swift UI in Xcode. Some of the image models are my custom fine-tunes. It also uses a couple of different multi-modal models for the text generation. I built Craft Rabbit in summer of 2024. I added the Prompt Palette in November 2024. The Prompt Palette offers users a unique way to make image prompts by tapping on a keyboard of craft and decor items, including many possible choices for styles, colors, materials and patterns. You don't have to think hard and compose detailed descriptions to be creative.

Modern Art AI

https://modernart-ai.com

Modern Art AI is my fashion design web app. I used Next.js/React and APIs connecting to my custom fashion image generation and sewing-pattern models. The UI also lets users upload their own sketches and images to guide their creations.

AI & Model Training

Pattern Design Models

Modern Art AI started out as a sustainable automated textile-manufacturing concept. I started learning about and experimenting with AI in order to develop an image-to-sewing pattern system that could drive the customization process for garment creation. I made some datasets of hand-drawn vector image sewing patterns derived from real clothing images (image-to-image training pairs) that were calibrated based on real-world physics. While iterating on these datasets, developing pipelines, and training several kinds of diffusion models, I eventually reached a temporary solution that involved blending an input image into the image generation inference processs. While this produces some interesting patterns that can be scaled to working size, printed, and used, I want to build a more grounded image-to-image pipeline that also has a model trained on the exact geometry of the patterns and clothing. I've learned a lot since I started working on this. I plan to revisit this problem again soon.

Image Generation Models

I started training some image generation models in Fall 2023. Many of the image datasets I created as a basis for my pattern-generation vector drawings were begging to be trained as straightforward text-to-image diffusion models. I built increasingly larger and better-curated datasets over the winter of 2023-2024. I did some lighter (LORA) fine-tunings of SDXL and some deeper full fine-tunings. I experimented with many different datasets and types of images (runway versus editorial, commercial contemporary design versus more timeless or experimental assortments). I wanted to override some of the aesthetics of the base models with my taste, with an emphasis on encoding fashion and aesthetic terminology very precisely for better instruction-following. I also trained some more generally decorative models with a mix of architectural, interior design, and crafting images. Two of those models became part of my Craft Rabbit iOS app.

Superhighway (My First Novel)

https://a.co/d/eAVLyQ5

I began writing a spy novel in the summer of 2023, but I ended up working on the first version of Modern Art AI instead. I felt an overwhelming urge to write something in January of 2025. Superhighway is a mix of sci-fi, espionage, and adventure. It is supposed to be extremely fun and I can see it becoming a movie someday.

Current and Upcoming Creative Projects

I am developing and producing a feature film based on my espionage sci-fi novel Superhighway.