; and (D) demonstrate how the capacity of the entity to coordinate health care and homelessness services to better serve people experiencing homelessness and significant behavioral health issues, including substance use disorder, can be increased through— (i) the designation of a governmental official as a coordinator for making connections between health and homelessness services and developing a strategy for using those services in a holistic way to help people experiencing homelessness and behavioral health conditions such as substance use disorder, including those with co-occurring conditions; (ii) improvements in infrastructure at the systems level; (iii) improvements in technology for voluntary remote monitoring capabilities, including internet and video, which can allow for more home- and community-based behavioral health care services and ensure such improvements maintain effective communication requirements for persons with disabilities and program access for persons with limited English proficiency; (iv) improvements in connections to health care services delivered by providers experienced in behavioral health care and people experiencing homelessness; (v) efforts to increase the availability, and training for the administration, of opioid antagonists indicated for emergency treatment of opioid overdose; and (vi) any additional activities identified by the Secretary that will advance the coordination of homelessness assistance, housing, and behavioral health care services and other health care services. (5) Eligible activities An eligible entity receiving a grant under this subsection may use the grant to cover costs related to— (A) hiring system coordinators