A self-paced foundations course in site reliability engineering. It covers six stages: what the discipline actually is, service level objectives and error budgets, observability, incident response, eliminating toil through automation, and capacity, resilience testing and the organisational work that makes reliability stick.
The through-line is that reliability is a negotiated target with a cost, not an aspiration, and that the engineering follows from the number the business chooses. Tech Skills Library is independent and issues no certification or credential.