Each write-up shows the funnel or pipeline end to end: what I instrumented, what the data said, where the bottleneck was, and what I'd do next.
From scratch, in seven days: 2.9K people reached, 12.9K views (4.45 videos each), and +16 net followers. Funnel mapping, real conversion rates, the bottleneck, the audience, the experiment, and the live data pipeline behind it.
An open-source scorecard that runs a contact list through several phone enrichment providers, validates every number returned with libphonenumber, and prices the difference — per market, per vendor, per waterfall order.