Subtle Engineering

<p><em>A calm practitioner's field manual for modern SaaS delivery: trunk-based development continuous delivery feature toggles boring deploys fast MTTR-even in regulated environments.</em></p><p>Shipping quickly isn't magic. It's a set of constraints you encode into your pipeline your infra and your culture so Fridays stop being dramatic. <strong>Subtle Engineering</strong> shows leaders and senior ICs how to get there without buzzwords or ceremony.</p><p><strong>You'll learn how to:</strong></p><ul><li>Move to <strong>trunk-based development</strong> (hours not weeks) and keep it shippable-always.</li><li>Use <strong>feature toggles</strong> and guarded rollouts (canary + instant rollback) to make change reversible.</li><li>Build <strong>pipelines that are a mirror</strong> of your engineering culture-and make them heal themselves.</li><li>Run <strong>immutable infrastructure</strong> (no SSH) and policy-as-code that auditors actually like.</li><li>Instrument what matters (DORA + SLOs) to <strong>shrink MTTR</strong> and stop arguing with opinions.</li><li>Tackle <strong>legacy migrations</strong> with shadow traffic and expand/contract data changes-no bulldozers.</li><li>Operate <strong>regulated without theatre</strong> with an evidence chain from commit → signed artifact → rollout → metrics.</li></ul><p><strong>Who it's for:</strong><br>Hands-on engineering managers staff+ engineers platform/SRE leads and CTOs who prefer <strong>evidence over ritual</strong> and want a 90-day path to quiet repeatable delivery.</p><p><strong>If you're tired of loud heroics</strong> this handbook gets you to <strong>calm velocity </strong>and keeps you there.</p>