Software: # android studio app
/Applications/Android Studio.app
  Finder / Applications / select app / Command + Delete ( windows key + Backspace ) / Trash Can / Empty Trash
   after del in Finder:  (removed successfully, it take no time, very very FAST)
   @MINI-> ls -l /Applications/Android*	# ls: No match.

SDK: #software development kit
/Users/cpfongsmacmini/Library/Android/sdk
   after del in Finder # MINI-> ls Library/Android/ # sdk still exists, so need to remove manually
   @MINI-> pwd
   @MINI-> rm -fr Android/

MISC:
/Users/cpfongsmacmini/.gradle  #makefile
/Users/cpfongsmacmini/.android #virtual devices
/Users/cpfongsmacmini/Library/Preferences/com.google.android.studio.plist
/Users/cpfongsmacmini/Library/Caches/Android Open Source Project
   after del in Finder # still exists these, i need to remove them all
   @MINI-> pwd # /Users/cpfongsmacmini
   @MINI-> rm -fr .gradle/; rm -fr ./.android/; 
   rm -fr Library/Preferences/com.google.android.studio.plist 
   rm -fr './Library/Caches/Android Open Source Project/'

personal Project:
/Users/cpfongsmacmini/AndroidStudioProjects #personal project
   after del in Finder # still exists these, i need to remove them all
   @MINI-> rm -fr AndroidStudioProjects/

#now do install ....
---------

double click .dmg file, then use mouse hold drag icon to Applications  (note: air (mac NB) is M1 cpu, mini is intel cpu, do NOT mix it up)
  @MINI-> ls /Applications/ |grep And
  Android Studio.app #app installED ok
  @MINI-> ls Library/ |grep An #NONE

1st run
  missing SDK
  SDK component setup (also note: setup directory is /Users/cpfongsmacmini/Library/Android/sdk)
   1 android sdk 368M
   2 API 32 120M
       Setup Type: Standard
       SDK Folder: /Users/cpfongsmacmini/Library/Android/sdk
       JDK Location: /Applications/Android Studio.app/Contents/jre/Contents/Home
       Total Download Size: 588 MB
	Android Emulator 299 MB
        Android SDK Build-Tools 32 50.4 MB
	Android SDK Build-Tools 32.1-rc1 56.7 MB
	Android SDK Platform 32 63 MB
	Android SDK Platform-Tools 18.5 MB
	Android SDK Tools 98.2 MB
	SDK Patch Applier v4 1.74 MB
	  android-sdk-licences (accept)
	  android-sdk-preview-licences (accept)

1st proj
   take lots of time download Gradle and java files

check SDK manager: only Android API 32 is installed (only one is enough)

goto device manager: select R (api level 30) X86 android 11 / download / start downloading ...