Peninsula school district leaders used AI coding tools to build internal education software, a “vibe coding” approach aimed at cutting costs and tailoring learning and operations tools. The district’s LessonLens system, created with Claude Code, analyzes filmed instruction and delivers feedback to teachers on how to improve time on complex tasks. District officials said custom tools cost less than commercially available alternatives and can be adapted quickly to match local requirements. They also reported using AI-assisted coding beyond instruction, including modifications to workflows like accounting and human resources functions. The district leadership framed the strategy as a way to avoid subscriptions for some routine tools by building bespoke versions in-house. Peninsula estimated potential annual savings around $220,000 by reducing reliance on paid software. For higher education technology and instructional design teams, the development signals that districts are actively moving from pilots to internal productization—using AI-assisted development to iterate faster and with more control over data and functionality.