Lumi: A Free AI-Powered Spotlight for Mac and Windows Built with Claude

A developer has introduced Lumi, a free, open-source application for macOS and Windows that combines file search and an AI assistant into a single input line. The project was created to streamline workflows, eliminating the need for users to switch between system search and a browser to get answers from AI models. The application allows users to quickly find local files or ask questions to an AI through a unified interface. A notable aspect of the development process was the active use of the Claude Code AI assistant, which helped with coding and architectural decisions. The author details the creation process and the role of neural networks in accelerating software development. Lumi is available to the community as an open-source tool, allowing users to study the implementation and contribute to the project's growth.