nilbuild

Open the diffity diff viewer in the browser to see your changes

Review current diff and leave comments using diffity agent commands

Read open review comments and resolve them by making code fixes

Create a guided code tour that walks through the codebase to answer a question or explain a feature. Opens in the browser with step-by-step navigation and highlighted code.

Open the diffity file tree browser to browse and comment on repository files

Read open comments from the tree browser and resolve them by making code fixes

Start a project-driven learning journey for any technical topic — programming languages, tools, frameworks, or concepts. Teaches through real projects, Diffity tours, and interactive conversation, adapting to the learner's pace.

Put a cursor-tracking mascot on a page -- a chibi character that turns its head toward the pointer and reacts when clicked. Picks one of the fifty-two drawn characters and wires up the React component, or draws a new one (with your own image tool, the OpenAI images API, or from a photo of the user), builds its two sprite sheets into aligned atlases and verifies they do not jump. Use when the user asks for a mascot, a character that watches the cursor, a portfolio head, wants one of the existing characters on their page, or wants a new character drawn.