Table 1.

Overview of Themes by CFIR Domain

CFIR Domain	Key themes	Facilitator or Barrier
Characteristics of Individuals	Staff acceptability and belief in the service	Facilitator
	Personal attributes and skills of project managers	Facilitator
Characteristics of the intervention	Bottom-up development with engagement from existing staff, managers and service users	Facilitator
	Using a flexible, person-centred, non-clinical ethos	Facilitator
	Adaptability: creating a service that responds to the reality of crisis	Facilitator
	Complexities of Digital Crisis Care	Barrier
The Process of Implementation	Planning and piloting	Facilitator
	Service user involvement	Facilitator
	Learning from existing services	Facilitator
	Reflecting, evaluating, and executing change	Facilitator
	Resources, costs, and sustainability of capital funded approaches	Barrier
The Inner Setting	Leadership and management buy-in	Facilitator
	Complexities of staffing services	Barrier
The Outer Setting	Adaptability to a local context	Facilitator
	Engaging key stakeholders and partners in development	Facilitator
	Policy changes	Barrier
	Delays due to Covid-19	Barrier
	Funding delays	Barrier