My Flutter app already ships with a Google Tag Manager container on both iOS and Android, but the Meta Pixel layer is still missing. I need you to jump straight into GTM, drop in the Meta Pixel base tag, and wire up three e-commerce events—ViewContent, AddToCart, and Purchase—so they flow cleanly into Meta Events Manager. Here’s the flow I have in mind: • Build triggers that fire from the existing data layer for each event. • For Purchase, be sure the value, currency, and content_ids parameters are passed exactly as Meta expects. • Validate everything in Meta’s Test Events tool on real and emulated devices. No GA4 or CAPI work is required; this task is 100 % about Meta Pixel tracking through GTM. My in-house developers will handle any Flutter code tweaks you request, so feel free to specify additional data-layer variables if they make your job easier. When you’re done, send me: 1. A clean JSON export of the updated GTM container. 2. A concise 1–2 page handover note that explains each tag/trigger, provides troubleshooting tips, and shows how I can add new events later. Please include one or two short examples of recent mobile GTM + Meta Pixel projects you’ve delivered for e-commerce. I’m ready to move as soon as I find the right fit.