Software bill of materials

<div class="sd"><div class="sd-head"><strong>SBOM</strong><span id="state">live check</span></div><div class="sd-stage"><div class="products"><div class="tile" id="app1">app A</div><div class="tile" id="app2">app B</div></div><div class="stem"></div><div class="parts"><div class="tile mono">lib-x</div><div class="tile mono" id="part">lib-y</div><div class="tile mono">lib-z</div></div></div><div class="sd-foot"><span id="caption">checking boundary</span><span>tap to step</span></div></div>

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let n=0;function advance(){n=1-n;['app1','part'].forEach(id=>document.getElementById(id).classList.toggle('affected',!!n));document.getElementById('state').textContent=n?'lib-y flagged':'inventory normal';document.getElementById('caption').textContent=n?'app A contains affected lib-y':'component relationships recorded'}advance();setInterval(advance,950);
document.querySelector('.sd').addEventListener('pointerdown',advance);