DonutLibrary
A home for the prompts, specs, notes, and working documents you use with AI.
Read more →
We build tools for the way minds actually work. Explore the software and the questions that move us forward.
Built with care by Nathan Harrell & the Harrell AI family.
A prompt. A plan. The note that makes everything click. DonutLibrary gives your working documents a place to belong—and a way back into the conversation.
Try the document demoKeep the documents for a project together, ready to pick up again.
Write and revise in Markdown. Give an idea enough structure to grow.
Copy your document into the AI conversation you already use.
Tools with a purpose, and a clear view of where each one stands.
A home for the prompts, specs, notes, and working documents you use with AI.
Read more →For ideas that arrive out loud. Exploring the path from spoken thought to a draft you can make your own.
Read more →Explore what we’re asking, how we’re investigating, and what we still don’t know.
Reading, expression, and returning to interrupted work.
Read more →Comparing composed and single-model systems with explicit budgets, recovery tests, and attention to cost and latency.
Read more →Get to know the engineering and research behind these tools, and the person connecting the pieces.
Visit Nathan’s journalSoftware and research informed by lived experience, careful questions, and work you can inspect.