Let my HOME alone 1/2

config/scripts/install-termux

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+#!/data/data/com.termux/files/usr/bin/env bash
+
+# Setups a Termux system the way I like it
+
+if [ ! -d /data/data/com.termux/files ]; then
+    echo "This is not a Termux system (or pacman isn't installed)"
+    return 1
+fi
+
+# Configuration
+function prompt { # text
+    while true; do
+        read -p "$1 [yn] " yn
+        case $yn in
+            [Yy]* ) return 1;;
+            [Nn]* ) return 0;;
+            * ) echo "Please answer yes or no.";;
+        esac
+    done
+}
+
+if [ -z $ROOT ]; then
+    prompt "Is this device rooted and BusyBox installed in /system/xbin/?"
+    ROOT=$?
+fi
+
+# Update
+apt update
+apt upgrade
+
+# (needed for install-prefs)
+apt install coreutils
+apt install grep
+# Used by some of my termux scripts
+apt install jq
+
+# Config
+touch ~/.hushlogin
+
+if [ $ROOT == 1 ]; then
+    apt install tsu
+    echo '/system/xbin/mount -o remount,rw /; ln -s /data/data/com.termux/files/usr /usr; /system/xbin/mount -o remount,ro /' | tsu
+fi