Use bun for all package management, test running, building, etc.
Use bun run typecheck to run type checking.
Use bunx biome check <path-to-file> to run lint when you modify code.
To create database migrations, edit internal/database/src/schema.ts and run cd internal/database && bun run generate --name <migration-name> to generate the migration files.
When you create new frontend components or modify them, update their Storybook stories too. When you create a new component, create a new story for it.