During this period, work focused on enhancing the yuwata/systemd repository by implementing TPM2 Recoverable Sealing Keys Support. The feature was developed in C and involved deriving object attributes from sealing key attributes to enable both fixed TPM and recoverable sealing keys, broadening secure key management options. The approach maintained compatibility with existing workflows by preserving object model semantics while introducing duplicatable sealing keys. Emphasis was placed on TPM, security, and system programming, with careful handling of TPM2 metadata and low-level attribute propagation. The resulting design supports maintainability and deployment readiness, addressing evolving requirements for secure key lifecycle management.