contrib/android/Readme.md: add note re adb install `--user` option
What changed, and why it matters
This commit only adds a documentation note to the Android build README explaining that the `adb install` command can target a specific Android user profile with `--user {userId}`, otherwise it installs for all profiles. There is no code change and no security fix or vulnerability introduced.
No action required; this is a documentation-only change with no security relevance.
Security signals we found
No strong security signals were identified.
Evidence from the diff
The diff is a two-line addition to contrib/android/Readme.md documenting an existing adb install option. It does not modify application code, build scripts, permissions, or any security-relevant behavior. It is purely informational.
Changed components
contrib/android/Readme.mdInspect captured patch +2 / −0
diff --git a/contrib/android/Readme.md b/contrib/android/Readme.md
index b37e05a..e9ccf87 100644
--- a/contrib/android/Readme.md
+++ b/contrib/android/Readme.md
@@ -69,6 +69,8 @@ Assuming `adb` is installed:
$ adb -d install -r dist/Electrum-*-arm64-v8a-debug.apk
$ adb shell monkey -p org.electrum.electrum 1
```
+Note `adb install` can take a `--user {userId}` option to install the app for a specific profile.
+Without that, the default is to install to *all* profiles.
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Why this scored 15/100
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