Every tool here was found the way you would find it: past midnight, three tabs deep, hunting for anything that makes shipping alone feel a little less alone.
The list stays small on purpose. Nothing gets in because it is popular — it gets in because it carried a real app one stage further, from the first sketch to the first payout.
The seven stages read like one night of work. You dream at new moon, build while it waxes, launch under a full moon, and learn while it wanes. Then you start again.