# David Grimsley: site guide

David Grimsley builds websites, mobile apps, games, APIs, and developer tools. This is his portfolio and service site. The Quantum API is one project among several.

- [Portfolio](/portfolio): projects and case studies across four categories.
- [Public tools](/public-facing): APIs, MCP servers, and production apps.
- [Services](/services): ways to work with David.
- [Contact](/contact): contact form, resume, and project inquiries.

For a concise machine-readable directory, read [llms.txt](/llms.txt). For current details, follow the linked HTML pages rather than assuming a guide lists every project.