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@@ -137,7 +137,9 @@ Publishes a built APK to the static site, checking each thing that has gone
wrong before: that this is the deploy host and not a box resembling it, that the
file is genuinely an APK rather than an HTML error page, that what landed is
byte-identical to what was tested, and that the web server serves those same
-bytes. Backs up any existing file first.
+bytes. Backs up any existing file first, keeping the two most recent (`--keep N`) — each backup is
+a full copy of a large APK in a public directory, and four publishes in one evening left
+448MB of them.
```
publish-apk app/build/outputs/apk/debug/app-debug.apk listen-debug.apk