A working slice of a data-labeling platform, built end to end for this application: React and TypeScript in front, Python and Postgres behind, on one small VM. Tap an answer. The key is computed, never modeled. Replay the build, at the bottom, to watch it get made.
The task
How many times does the letter r appear in the word strawberry?
choose the answer you believe is correct
Monitor
Labeler agreement with the answer key, each model's accuracy by family, views per day from the access log, and the last labels appended to the ledger.