MacOS add application (Example.app) to autostart

com.example.app.startup.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>Label</key>
    <string>com.example.app.startup</string>
    <key>AssociatedBundleIdentifiers</key>
    <array>
        <string>com.example.app</string>
    </array>
    <key>Program</key>
    <string>/Applications/Example.app/Contents/MacOS/Example</string>
    <key>ProgramArguments</key>
    <array>
        <string>/Applications/Example.app/Contents/MacOS/Example</string>
    </array>
    <key>Disabled</key>
    <false/>
    <key>RunAtLoad</key>
    <true/>
    <key>KeepAlive</key>
    <dict>
        <key>Crashed</key>
        <true/>
    </dict>
    <key>ProcessType</key>
    <string>Interactive</string>
    <key>LimitLoadToSessionType</key>
    <string>Aqua</string>
    <key>AbandonProcessGroup</key>
    <true/>
    <key>ExitTimeOut</key>
    <integer>5</integer>
</dict>
</plist>

info.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>CFBundleName</key>
    <string>Example</string>
    ...
    <key>LSUIElement</key>
    <string>1</string>
</dict>
</plist>

postinstall.sh

#!/bin/bash

# SPDX-License-Identifier: MIT
# MIT Software License: https://opensource.org/licenses/MIT
# Copyright Vadim Piven <vadim@piven.tech>

set -ex

LIBRARY_DIR="/Users/$USER/Library"

AGENTS_DIR="$LIBRARY_DIR/LaunchAgents"
STARTUP_SERVICE="com.example.app.startup"
STARTUP_PLIST_NAME="$STARTUP_SERVICE.plist"
STARTUP_PLIST_SRC="$PWD/$STARTUP_PLIST_NAME"
STARTUP_PLIST_DST="$AGENTS_DIR/$STARTUP_PLIST_NAME"

PREFERENCES_DIR="$LIBRARY_DIR/Preferences"

if [ -e "$STARTUP_PLIST_DST" ]; then
    sudo -u "$USER" launchctl bootout "gui/$(id -u "$USER")" "$STARTUP_PLIST_DST" || true
fi
osascript -e "quit app \"Example.app\"" || true

if [ ! -d "$AGENTS_DIR" ]; then
    mkdir -p "$AGENTS_DIR"
    chown "$USER" "$AGENTS_DIR"
fi

cp -f "$STARTUP_PLIST_SRC" "$STARTUP_PLIST_DST"
chmod -x "$STARTUP_PLIST_DST"
chown "$USER" "$STARTUP_PLIST_DST"

sudo -u "$USER" launchctl bootstrap "gui/$(id -u "$USER")" "$STARTUP_PLIST_DST" \
|| (sudo -u "$USER" launchctl enable "gui/$(id -u "$USER")/$STARTUP_SERVICE" \
    && sudo -u "$USER" launchctl bootstrap "gui/$(id -u "$USER")" "$STARTUP_PLIST_DST") \
|| sudo -u "$USER" launchctl kickstart "gui/$(id -u "$USER")/$STARTUP_SERVICE"