@Andriy Knysh (Cloud Posse) this is risky one, as it refactors all terraform handling to be explicit rather than implicit. It routes everything through the command registry and flag handler system for strict validation. This is setting us up for follow up PRs that will tackle the just in time vendoring, provider caching, concurrent terraform executions and a lot more. https://github.com/cloudposse/atmos/pull/1813