diff --git a/apps/hedgedoc-linuxserver/1.12.2/.env.sample b/apps/hedgedoc-linuxserver/1.12.2/.env.sample
new file mode 100644
index 000000000..d48972a3f
--- /dev/null
+++ b/apps/hedgedoc-linuxserver/1.12.2/.env.sample
@@ -0,0 +1,16 @@
+CONTAINER_NAME=
+PANEL_APP_PORT_HTTP=3000
+CONFIG_PATH=./data/config
+DB_HOST=hedgedoc-db
+DB_PORT=3306
+DB_USER=hedgedoc
+DB_NAME=hedgedoc
+DB_PASSWORD=hedgedoc-change-me
+CMD_DOMAIN=localhost
+CMD_URL_ADDPORT=true
+CMD_PROTOCOL_USESSL=false
+CMD_PORT=3000
+CMD_ALLOW_ORIGIN=['localhost']
+CMD_DB_DIALECT=mariadb
+DB_DATA_PATH=./data/db
+TIME_ZONE=Asia/Shanghai
diff --git a/apps/hedgedoc-linuxserver/1.12.2/data.yml b/apps/hedgedoc-linuxserver/1.12.2/data.yml
new file mode 100644
index 000000000..b58065866
--- /dev/null
+++ b/apps/hedgedoc-linuxserver/1.12.2/data.yml
@@ -0,0 +1,257 @@
+additionalProperties:
+  formFields:
+  - default: 3000
+    edit: true
+    envKey: PANEL_APP_PORT_HTTP
+    labelEn: HTTP Port
+    labelZh: HTTP 端口
+    label:
+      en: HTTP Port
+      zh: HTTP 端口
+      zh-Hant: HTTP 連接埠
+      ja: HTTP ポート
+      ko: HTTP 포트
+      ru: HTTP-порт
+      ms: Port HTTP
+      pt-br: Porta HTTP
+    required: true
+    type: number
+    rule: paramPort
+  - default: ./data/config
+    edit: true
+    envKey: CONFIG_PATH
+    labelEn: Config folder path
+    labelZh: 配置文件路径
+    label:
+      en: Config folder path
+      zh: 配置文件路径
+      zh-Hant: 設定檔資料夾路徑
+      ja: 設定フォルダーのパス
+      ko: 설정 폴더 경로
+      ru: Путь к папке конфигурации
+      ms: Laluan folder konfigurasi
+      pt-br: Caminho da pasta de configuração
+    required: true
+    type: text
+  - default: hedgedoc-db
+    edit: true
+    envKey: DB_HOST
+    labelEn: Database host
+    labelZh: 数据库主机
+    label:
+      en: Database host
+      zh: 数据库主机
+      zh-Hant: 資料庫主機
+      ja: データベースホスト
+      ko: 데이터베이스 호스트
+      ru: Хост базы данных
+      ms: Hos pangkalan data
+      pt-br: Host do banco
+    required: true
+    type: text
+  - default: 3306
+    edit: true
+    envKey: DB_PORT
+    labelEn: Database port
+    labelZh: 数据库端口
+    label:
+      en: Database port
+      zh: 数据库端口
+      zh-Hant: 資料庫連接埠
+      ja: データベースポート
+      ko: 데이터베이스 포트
+      ru: Порт базы данных
+      ms: Port pangkalan data
+      pt-br: Porta do banco
+    required: true
+    type: number
+  - default: hedgedoc
+    edit: true
+    envKey: DB_USER
+    labelEn: Database username
+    labelZh: 数据库用户名
+    label:
+      en: Database username
+      zh: 数据库用户名
+      zh-Hant: 資料庫使用者名稱
+      ja: データベースユーザー名
+      ko: 데이터베이스 사용자 이름
+      ru: Имя пользователя базы
+      ms: Nama pengguna pangkalan data
+      pt-br: Usuario do banco
+    required: true
+    type: text
+  - default: hedgedoc
+    edit: true
+    envKey: DB_NAME
+    labelEn: Database name
+    labelZh: 数据库名称
+    label:
+      en: Database name
+      zh: 数据库名称
+      zh-Hant: 資料庫名稱
+      ja: データベース名
+      ko: 데이터베이스 이름
+      ru: Имя базы данных
+      ms: Nama pangkalan data
+      pt-br: Nome do banco
+    required: true
+    type: text
+  - default: hedgedoc-change-me
+    edit: true
+    envKey: DB_PASSWORD
+    labelEn: Database password
+    labelZh: 数据库密码
+    label:
+      en: Database password
+      zh: 数据库密码
+      zh-Hant: 資料庫密碼
+      ja: データベースパスワード
+      ko: 데이터베이스 비밀번호
+      ru: Пароль базы данных
+      ms: Kata laluan pangkalan data
+      pt-br: Senha do banco de dados
+    required: true
+    type: password
+    rule: paramComplexity
+  - default: localhost
+    edit: true
+    envKey: CMD_DOMAIN
+    labelEn: Access domain
+    labelZh: 访问域名
+    label:
+      en: Access domain
+      zh: 访问域名
+      zh-Hant: 存取網域
+      ja: アクセスドメイン
+      ko: 접속 도메인
+      ru: Домен доступа
+      ms: Domain akses
+      pt-br: Dominio de acesso
+    required: true
+    type: text
+  - default: "true"
+    edit: true
+    envKey: CMD_URL_ADDPORT
+    labelEn: Add port to URL
+    labelZh: URL 添加端口
+    label:
+      en: Add port to URL
+      zh: URL 添加端口
+      zh-Hant: URL 加入連接埠
+      ja: URL にポートを追加
+      ko: URL에 포트 추가
+      ru: Добавлять порт в URL
+      ms: Tambah port pada URL
+      pt-br: Adicionar porta a URL
+    required: false
+    type: select
+    values:
+      - label: "true"
+        value: "true"
+      - label: "false"
+        value: "false"
+  - default: "false"
+    edit: true
+    envKey: CMD_PROTOCOL_USESSL
+    labelEn: Use HTTPS protocol
+    labelZh: 使用 HTTPS 协议
+    label:
+      en: Use HTTPS protocol
+      zh: 使用 HTTPS 协议
+      zh-Hant: 使用 HTTPS 通訊協定
+      ja: HTTPS プロトコルを使用
+      ko: HTTPS 프로토콜 사용
+      ru: Использовать протокол HTTPS
+      ms: Gunakan protokol HTTPS
+      pt-br: Usar protocolo HTTPS
+    required: false
+    type: select
+    values:
+      - label: "true"
+        value: "true"
+      - label: "false"
+        value: "false"
+  - default: 3000
+    edit: true
+    envKey: CMD_PORT
+    labelEn: Internal application port
+    labelZh: 应用内部端口
+    label:
+      en: Internal application port
+      zh: 应用内部端口
+      zh-Hant: 應用程式內部連接埠
+      ja: アプリケーション内部ポート
+      ko: 애플리케이션 내부 포트
+      ru: Внутренний порт приложения
+      ms: Port dalaman aplikasi
+      pt-br: Porta interna do aplicativo
+    required: true
+    type: number
+  - default: "['localhost']"
+    edit: true
+    envKey: CMD_ALLOW_ORIGIN
+    labelEn: Allowed origins
+    labelZh: 允许的来源
+    label:
+      en: Allowed origins
+      zh: 允许的来源
+      zh-Hant: 允許的來源
+      ja: 許可されたオリジン
+      ko: 허용된 출처
+      ru: Разрешенные источники
+      ms: Asal dibenarkan
+      pt-br: Origens permitidas
+    required: false
+    type: text
+  - default: mariadb
+    edit: true
+    envKey: CMD_DB_DIALECT
+    labelEn: Database dialect
+    labelZh: 数据库类型
+    label:
+      en: Database dialect
+      zh: 数据库类型
+      zh-Hant: 資料庫類型
+      ja: データベース種別
+      ko: 데이터베이스 유형
+      ru: Тип базы данных
+      ms: Jenis pangkalan data
+      pt-br: Tipo do banco
+    required: true
+    type: select
+    values:
+      - label: mariadb
+        value: mariadb
+  - default: ./data/db
+    edit: true
+    envKey: DB_DATA_PATH
+    labelEn: Database data path
+    labelZh: 数据库数据目录
+    label:
+      en: Database data path
+      zh: 数据库数据目录
+      zh-Hant: 資料庫資料目錄
+      ja: データベースデータディレクトリ
+      ko: 데이터베이스 데이터 디렉터리
+      ru: Каталог данных базы
+      ms: Laluan data pangkalan data
+      pt-br: Caminho de dados do banco
+    required: true
+    type: text
+  - default: Asia/Shanghai
+    edit: true
+    envKey: TIME_ZONE
+    labelEn: Time zone
+    labelZh: 时区
+    label:
+      en: Time zone
+      zh: 时区
+      zh-Hant: 時區
+      ja: タイムゾーン
+      ko: 시간대
+      ru: Часовой пояс
+      ms: Zon waktu
+      pt-br: Fuso horário
+    required: true
+    type: text
diff --git a/apps/hedgedoc-linuxserver/1.12.2/data/.gitkeep b/apps/hedgedoc-linuxserver/1.12.2/data/.gitkeep
new file mode 100644
index 000000000..e69de29bb
diff --git a/apps/hedgedoc-linuxserver/1.12.2/docker-compose.yml b/apps/hedgedoc-linuxserver/1.12.2/docker-compose.yml
new file mode 100644
index 000000000..82c88c849
--- /dev/null
+++ b/apps/hedgedoc-linuxserver/1.12.2/docker-compose.yml
@@ -0,0 +1,47 @@
+networks:
+  1panel-network:
+    external: true
+services:
+  hedgedoc:
+    image: "linuxserver/hedgedoc:1.12.2"
+    container_name: ${CONTAINER_NAME}
+    restart: always
+    networks:
+      - 1panel-network
+    ports:
+      - "${PANEL_APP_PORT_HTTP}:${CMD_PORT}"
+    volumes:
+      - "${CONFIG_PATH}:/config"
+    environment:
+      - PUID=1000
+      - PGID=1000
+      - TZ=${TIME_ZONE}
+      - DB_HOST=${DB_HOST}
+      - DB_PORT=${DB_PORT}
+      - DB_USER=${DB_USER}
+      - DB_PASS=${DB_PASSWORD}
+      - DB_NAME=${DB_NAME}
+      - CMD_DOMAIN=${CMD_DOMAIN}
+      - CMD_URL_ADDPORT=${CMD_URL_ADDPORT}
+      - CMD_PROTOCOL_USESSL=${CMD_PROTOCOL_USESSL}
+      - CMD_PORT=${CMD_PORT}
+      - CMD_ALLOW_ORIGIN=${CMD_ALLOW_ORIGIN}
+      - CMD_DB_DIALECT=${CMD_DB_DIALECT}
+    depends_on:
+      - hedgedoc-db
+    labels:
+      createdBy: "Apps"
+  hedgedoc-db:
+    image: "mariadb:11.4"
+    restart: always
+    networks:
+      - 1panel-network
+    volumes:
+      - "${DB_DATA_PATH}:/var/lib/mysql"
+    environment:
+      - MARIADB_ROOT_PASSWORD=${DB_PASSWORD}
+      - MARIADB_DATABASE=${DB_NAME}
+      - MARIADB_USER=${DB_USER}
+      - MARIADB_PASSWORD=${DB_PASSWORD}
+    labels:
+      createdBy: "Apps"
diff --git a/apps/hedgedoc-linuxserver/1.12.2/scripts/init.sh b/apps/hedgedoc-linuxserver/1.12.2/scripts/init.sh
new file mode 100755
index 000000000..616295e70
--- /dev/null
+++ b/apps/hedgedoc-linuxserver/1.12.2/scripts/init.sh
@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+paths=(
+  "${CONFIG_PATH:-./data/config}"
+  "${DB_DATA_PATH:-./data/db}"
+)
+
+mkdir -p "${paths[@]}"
+for path in "${paths[@]}"; do
+  case "$path" in
+    ./*|../*) chown -R 1000:1000 "$path" 2>/dev/null || true ;;
+  esac
+done
diff --git a/apps/hedgedoc-linuxserver/1.12.2/scripts/uninstall.sh b/apps/hedgedoc-linuxserver/1.12.2/scripts/uninstall.sh
new file mode 100755
index 000000000..ab8a8d674
--- /dev/null
+++ b/apps/hedgedoc-linuxserver/1.12.2/scripts/uninstall.sh
@@ -0,0 +1,2 @@
+#!/bin/bash
+docker-compose down --volumes
diff --git a/apps/hedgedoc-linuxserver/1.12.2/scripts/upgrade.sh b/apps/hedgedoc-linuxserver/1.12.2/scripts/upgrade.sh
new file mode 100755
index 000000000..fc6adcb02
--- /dev/null
+++ b/apps/hedgedoc-linuxserver/1.12.2/scripts/upgrade.sh
@@ -0,0 +1,36 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+ENV_FILE="${ENV_FILE:-./.env}"
+
+ensure_env_default() {
+  local key="$1"
+  local value="$2"
+
+  if [[ ! -f "$ENV_FILE" ]]; then
+    echo "$ENV_FILE not found; skipped $key migration"
+    return
+  fi
+
+  if grep -qE "^${key}=" "$ENV_FILE"; then
+    echo "$key already exists"
+    return
+  fi
+
+  printf '%s=%s\n' "$key" "$value" >> "$ENV_FILE"
+  echo "Added $key"
+}
+
+if [[ -f "$ENV_FILE" ]]; then
+  ensure_env_default "DB_HOST" "hedgedoc-db"
+  ensure_env_default "DB_PORT" "3306"
+  ensure_env_default "DB_USER" "hedgedoc"
+  ensure_env_default "DB_NAME" "hedgedoc"
+  ensure_env_default "CMD_URL_ADDPORT" "true"
+  ensure_env_default "CMD_PROTOCOL_USESSL" "false"
+  ensure_env_default "CMD_PORT" "3000"
+  ensure_env_default "CMD_ALLOW_ORIGIN" "['localhost']"
+  ensure_env_default "CMD_DB_DIALECT" "mariadb"
+else
+  echo "$ENV_FILE not found; skipped LinuxServer environment migration"
+fi