Explore the versatility of FoundationDB as a database construction kit in this 25-minute conference talk. Learn how to build custom database solutions from scratch using an empty key-value store while maintaining safety and reliability. Discover the process of creating a database with a schema, implementing non-blocking schema changes, constructing secondary indexes, and developing a change data capture system for auditing and ETL. Delve into enhancing object storage systems like Amazon S3 by adding strongly consistent object listing and the ability to append to existing objects. Gain practical insights on mapping ideas into keys and values, enabling you to craft innovative solutions using FoundationDB's flexible architecture.