Permit.io's Launch Week Day 3 introduces significant advancements in modeling permissions as code, enhancing developers' ability to integrate access control into their development workflows. The highlight is the new Permit Terraform Provider, which allows developers to manage authorization policies using Terraform's declarative syntax, thus decoupling policy configuration from data and facilitating seamless integration into the software development lifecycle. The Groups API simplifies relationship-based access control by enabling role inheritance across multiple resources within a group, reducing the complexity of managing large-scale models. Additionally, the Foreign Key Conditions feature streamlines attribute-based access control for simpler schemas by allowing developers to define one-to-one relationships without the need for a full relationship-based system. These tools aim to create secure and scalable permission systems by integrating policy management directly into infrastructure as code, supporting various access control models such as RBAC, ReBAC, and ABAC.