Separate Firebase test project
Synratio Sandbox
This is a deliberately unrelated app, built as a clean Firebase test bed before touching the real thing. Better to make the mistakes where nobody lives.
Micro app: Ratio sorter
Enter a few candidate items with two numbers each. The sandbox scores them as a / b and ranks the results. Nothing profound. The point is to ship something small, inspect the workflow, and confirm the plumbing is real.