This Technical Report-Study/Services, Ad Hoc Reports and Works delivers (Optional) 3.2.4bOptional POP Addendum to Final Report and Deliverable 3.3.5 (Optional) - Results of design checkout - #3. It summarizes the work performed during the Optional POP, including Design Checkout #3, and provides technical data from an analysis of the findings captured during ITD event in August 2018.All sections follow the format specified in DI-MGMT-80227. This report assumes familiarity with the acronyms and terminology in use under the Total Learning Architecture (TLA) program and by ADL. An itemized assessment of progress during the Optional POP is included in the body of the report. Appendix A includes Deliverable 3.3.5 (Optional) - Results of design checkout - #3.Appendix B provides findings captured during ITD event in August 2018.In addition to this report, Perigean Technologies is delivering the final version of open source software TLA-integrated Sero!. v.1.0 for open source. Appendix C provides technical documentation that enables the configuration of software.