The top 100 Android non-Google Apps

31 batches and 1,642 creatives went into one catalogued library. Then the live library quietly showed 7 of them, and the thumbs-up learning loop starved after 212 ratings. What a creative registry needs beyond “put everything in one place”.

A product launch for us touches about twenty surfaces. We turned it into a durable publication run with preconditions and a post-write read-back. 237 runs later, a quarter failed, and almost none of the failures were in our logic. Here is what failed, the six launch bugs that each became a hard rule

A Sunday job crawls our marketplace reviews, emails a digest and turns new five-star reviews into social posts. For a month it reported “0 new reviews” while customers wrote 46. Here is the data model, the three bugs, the gate that rejected seven five-star reviews, and the alert I should have built

Nine weeks of a weekly SEO job that recommends exactly three fixes: the real numbers, the title fix it called a win while clicks fell, the three weeks it repeated itself, and the verdict rule I would build first next time.

In one September week our daily ad spend went from a quarter of the budget’s daily rate to 4.6 times it, with nothing broken. Here is the guard I wrote afterwards, the ranking code it runs every three hours, the cents-versus-dollars bug that briefly multiplied our account cap by 100, and the weekly