Comprehending Leadership advice

Team, I'm moving to an Eng Mngr role soon, this is what my director shared with me, sounds like greek and latin honestly, need help figuring out what all this means: " - Focus on quality, performance then features. - Observability is critical to measure success or failures - Keep it small, simple, regular deployments rather than large monolith - Automation is a team responsibility - Lean and outcomes matter - Building the wrong thing manytimes over " Copy pasted his Slack message above, Except for (3) nothing makes sense to me