+The server software collects, logs, and de-duplicates keypress reports.
+
+The housing grips the pico by the edges through spring force; you'll need
+to squeeze the housing flat (eg: with a clamp) to deform it slightly to
+allow the pico board to slide in and out easily. Note that the housing is
+subtly _not symmetrical_: There is a top and a bottom. Do not force the
+pico board in upside down or you will destroy the board's bootsel button.
+
+![The tattlekey 'keyboard'](docs/tattlekey.jpg)