diff --git a/README.md b/README.md
index 3b366a4..f84f827 100644
--- a/README.md
+++ b/README.md
@@ -100,7 +100,7 @@ apt install -y postgresql-17 postgresql-client-17
 Пользователь и база `shop`:
 
 ```bash
-cd /opt/shop
+cd /opt/shop/shop10
 bash scripts/setup-postgres-ubuntu.sh
 ```
 
@@ -112,32 +112,33 @@ bash scripts/setup-postgres-ubuntu.sh
 
 ## Быстрый развёртывание на Ubuntu
 
+**Одной командой** (клон в `/opt/shop/shop10`, PostgreSQL через PGDG, systemd):
+
 ```bash
-# 1. Система + Node.js 20
-apt update
-apt install -y git curl
-curl -fsSL https://deb.nodesource.com/setup_20.x | bash -
-apt install -y nodejs
+apt update && apt install -y git curl
+git clone https://git.evilfox.cc/test/shop10.git /opt/shop/shop10
+cd /opt/shop/shop10
+sudo bash scripts/quick-deploy-ubuntu.sh
+```
 
-# 2. PostgreSQL 17
-apt install -y postgresql-17 postgresql-client-17
+**Уже установлен магазин — только обновить код:**
 
-# 3. Код
-cd /opt
-git clone <URL_РЕПОЗИТОРИЯ> shop
-cd shop
+```bash
+bash /opt/shop/shop10/scripts/server-update.sh
+```
 
-# 4. БД
+Не выполняйте `cd /opt/shop`, если репозиторий в `/opt/shop/shop10` — там нет `package.json`.
+
+Ручная установка:
+
+```bash
+cd /opt/shop/shop10
+sudo bash scripts/install-postgresql-ubuntu.sh   # PGDG, не apt install postgresql-17 напрямую
 bash scripts/setup-postgres-ubuntu.sh
-
-# 5. Окружение
 cp .env.example .env
-sed -i "s/change-me-to-a-long-random-string/$(openssl rand -hex 32)/" .env
-# Проверьте DATABASE_URL в .env
-
-# 6. Приложение
+# SESSION_SECRET, DATABASE_URL, SITE_URL
 npm install --omit=dev
-npm start
+systemctl restart shop
 ```
 
 Проверка:
@@ -169,9 +170,9 @@ DATABASE_URL=postgresql://shop:shop@127.0.0.1:5432/shop
 ## Запуск как служба (systemd)
 
 ```bash
-cp /opt/shop/deploy/shop.service /etc/systemd/system/shop.service
+cp /opt/shop/shop10/deploy/shop.service /etc/systemd/system/shop.service
 
-cd /opt/shop
+cd /opt/shop/shop10
 cp .env.example .env   # при первой установке
 # Заполните SESSION_SECRET и DATABASE_URL
 
@@ -184,7 +185,7 @@ systemctl start shop
 journalctl -u shop -f
 ```
 
-`EnvironmentFile=/opt/shop/.env` должен содержать `DATABASE_URL`.
+`EnvironmentFile=/opt/shop/shop10/.env` должен содержать `DATABASE_URL`.
 
 ---
 
@@ -276,19 +277,17 @@ shop.example.com {
 **Быстрое исправление (одной командой):**
 
 ```bash
-cd /opt/shop
-git pull
-bash scripts/fix-db-connection.sh
+bash /opt/shop/shop10/scripts/fix-db-connection.sh
 ```
 
 **Вручную:**
 
 ```bash
-apt install -y postgresql-17 postgresql-client-17
+cd /opt/shop/shop10
+sudo bash scripts/install-postgresql-ubuntu.sh
 systemctl enable --now postgresql
 pg_isready -h 127.0.0.1 -p 5432
 
-cd /opt/shop
 bash scripts/setup-postgres-ubuntu.sh
 nano .env   # DATABASE_URL=postgresql://shop:shop@127.0.0.1:5432/shop
 
@@ -301,7 +300,7 @@ curl -s http://127.0.0.1:3000/health
 ### HTTP 502
 
 ```bash
-bash /opt/shop/scripts/diagnose-502.sh
+bash /opt/shop/shop10/scripts/diagnose-502.sh
 journalctl -u shop -n 50 --no-pager
 ```
 
@@ -344,6 +343,8 @@ caddy/Caddyfile.docker.example
 deploy/shop.service
 scripts/
   setup-postgres-ubuntu.sh
+  install-postgresql-ubuntu.sh
+  quick-deploy-ubuntu.sh
   fix-db-connection.sh
   diagnose-502.sh
   server-update.sh
@@ -353,8 +354,8 @@ src/
 ## Релиз 0.20.0
 
 ```bash
-git clone <URL_РЕПОЗИТОРИЯ> shop
-cd shop
+git clone https://git.evilfox.cc/test/shop10.git /opt/shop/shop10
+cd /opt/shop/shop10
 git checkout v0.20.0
 ```
 
@@ -366,6 +367,6 @@ git checkout v0.20.0
 ## Репозиторий
 
 ```bash
-git clone <URL_РЕПОЗИТОРИЯ> shop
-cd shop
+git clone https://git.evilfox.cc/test/shop10.git /opt/shop/shop10
+cd /opt/shop/shop10
 ```
diff --git a/docs/RELEASE-0.10.md b/docs/RELEASE-0.10.md
index 30b9b28..ccaac32 100644
--- a/docs/RELEASE-0.10.md
+++ b/docs/RELEASE-0.10.md
@@ -5,7 +5,7 @@
 ## Вариант A — Docker Compose
 
 ```bash
-git clone <URL_РЕПОЗИТОРИЯ> shop && cd shop
+git clone https://git.evilfox.cc/test/shop10.git /opt/shop/shop10 && cd /opt/shop/shop10
 git checkout v0.10.0
 
 cp .env.docker.example .env
@@ -27,7 +27,7 @@ docker compose --profile proxy up -d --build
 ## Вариант B — без Docker (Ubuntu)
 
 ```bash
-git clone <URL_РЕПОЗИТОРИЯ> shop && cd shop
+git clone https://git.evilfox.cc/test/shop10.git /opt/shop/shop10 && cd /opt/shop/shop10
 git checkout v0.10.0
 
 apt install -y git curl
diff --git a/scripts/fix-db-connection.sh b/scripts/fix-db-connection.sh
index 1723719..e629a85 100644
--- a/scripts/fix-db-connection.sh
+++ b/scripts/fix-db-connection.sh
@@ -2,29 +2,30 @@
 # Быстрое исправление ECONNREFUSED 127.0.0.1:5432
 set -euo pipefail
 
-source "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/shop-root.sh"
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+source "$SCRIPT_DIR/shop-root.sh"
 
-echo "=== Исправление подключения к PostgreSQL ==="
+echo "=== Исправление подключения к PostgreSQL ($SHOP_ROOT) ==="
 
-if ! dpkg -l | grep -q postgresql; then
-  echo "Установка PostgreSQL 17..."
-  apt update
-  apt install -y postgresql-17 postgresql-client-17 || {
-    echo "Если пакет не найден — см. README (репозиторий PGDG)"
-    exit 1
-  }
+if ! command -v psql >/dev/null; then
+  bash "$SCRIPT_DIR/install-postgresql-ubuntu.sh"
 fi
 
-bash scripts/setup-postgres-ubuntu.sh
+bash "$SCRIPT_DIR/setup-postgres-ubuntu.sh"
 
 if [ -f .env ] && ! grep -q '^DATABASE_URL=' .env; then
-  echo "DATABASE_URL=postgresql://shop:shop@127.0.0.1:5432/shop" >> .env
+  echo 'DATABASE_URL=postgresql://shop:shop@127.0.0.1:5432/shop' >> .env
   echo "Добавлен DATABASE_URL в .env"
 fi
 
-cp -f deploy/shop.service /etc/systemd/system/shop.service
-systemctl daemon-reload
-systemctl restart shop
+if [ -f deploy/shop.service ]; then
+  cp -f deploy/shop.service /etc/systemd/system/shop.service
+  sed -i "s|WorkingDirectory=.*|WorkingDirectory=${SHOP_ROOT}|" /etc/systemd/system/shop.service
+  sed -i "s|EnvironmentFile=.*|EnvironmentFile=${SHOP_ROOT}/.env|" /etc/systemd/system/shop.service
+  systemctl daemon-reload
+fi
+
+systemctl restart shop 2>/dev/null || true
 sleep 2
 
 if curl -sf http://127.0.0.1:3000/health; then
diff --git a/scripts/install-postgresql-ubuntu.sh b/scripts/install-postgresql-ubuntu.sh
new file mode 100644
index 0000000..4508ce9
--- /dev/null
+++ b/scripts/install-postgresql-ubuntu.sh
@@ -0,0 +1,59 @@
+#!/bin/bash
+# Установка PostgreSQL 17 (PGDG) или postgresql из Ubuntu
+# sudo bash scripts/install-postgresql-ubuntu.sh
+set -euo pipefail
+
+if command -v psql >/dev/null; then
+  echo "PostgreSQL уже установлен: $(psql --version | head -1)"
+  systemctl enable postgresql 2>/dev/null || true
+  systemctl start postgresql 2>/dev/null || true
+  exit 0
+fi
+
+echo "=== Установка PostgreSQL ==="
+apt update
+apt install -y curl ca-certificates gnupg lsb-release
+
+if [ ! -f /etc/os-release ]; then
+  echo "Ошибка: не найден /etc/os-release"
+  exit 1
+fi
+# shellcheck source=/dev/null
+. /etc/os-release
+CODENAME="${VERSION_CODENAME:-}"
+if [ -z "$CODENAME" ]; then
+  echo "Ошибка: не удалось определить VERSION_CODENAME (Ubuntu/Debian?)"
+  exit 1
+fi
+
+install -d /usr/share/postgresql-common/pgdg
+curl -fsSL https://www.postgresql.org/media/keys/ACCC4CF8.asc \
+  -o /usr/share/postgresql-common/pgdg/apt.postgresql.org.asc
+
+echo "deb [signed-by=/usr/share/postgresql-common/pgdg/apt.postgresql.org.asc] https://apt.postgresql.org/pub/repos/apt ${CODENAME}-pgdg main" \
+  > /etc/apt/sources.list.d/pgdg.list
+
+apt update
+
+if apt install -y postgresql-17 postgresql-client-17; then
+  echo "Установлен PostgreSQL 17 (PGDG)"
+else
+  echo "Пакет postgresql-17 недоступен — устанавливаем postgresql из репозитория Ubuntu..."
+  apt install -y postgresql postgresql-contrib
+fi
+
+systemctl enable postgresql
+systemctl start postgresql
+
+for i in $(seq 1 30); do
+  if pg_isready -h 127.0.0.1 -p 5432 -q 2>/dev/null; then
+    echo "pg_isready: OK"
+    psql --version | head -1
+    exit 0
+  fi
+  sleep 1
+done
+
+echo "PostgreSQL установлен, но не отвечает на 127.0.0.1:5432"
+echo "  journalctl -u postgresql -n 30 --no-pager"
+exit 1
diff --git a/scripts/quick-deploy-ubuntu.sh b/scripts/quick-deploy-ubuntu.sh
new file mode 100644
index 0000000..ee3c59e
--- /dev/null
+++ b/scripts/quick-deploy-ubuntu.sh
@@ -0,0 +1,73 @@
+#!/bin/bash
+# Быстрое развёртывание / обновление на Ubuntu (без Docker)
+# sudo bash scripts/quick-deploy-ubuntu.sh
+#
+# Каталог по умолчанию: /opt/shop/shop10
+# Переопределение: SHOP_INSTALL_DIR=/opt/shop/shop10 SHOP_GIT_URL=https://...
+set -euo pipefail
+
+INSTALL_DIR="${SHOP_INSTALL_DIR:-/opt/shop/shop10}"
+GIT_URL="${SHOP_GIT_URL:-https://git.evilfox.cc/test/shop10.git}"
+
+if [ "$(id -u)" -ne 0 ]; then
+  echo "Запустите от root: sudo bash scripts/quick-deploy-ubuntu.sh"
+  exit 1
+fi
+
+echo "=== Shop: быстрое развёртывание ==="
+echo "Каталог: $INSTALL_DIR"
+
+if ! command -v node >/dev/null; then
+  echo "Установка Node.js 20..."
+  apt update
+  apt install -y git curl ca-certificates
+  curl -fsSL https://deb.nodesource.com/setup_20.x | bash -
+  apt install -y nodejs
+fi
+
+if [ ! -f "$INSTALL_DIR/package.json" ]; then
+  echo "Клонирование репозитория..."
+  mkdir -p "$(dirname "$INSTALL_DIR")"
+  git clone "$GIT_URL" "$INSTALL_DIR"
+fi
+
+export SHOP_ROOT="$INSTALL_DIR"
+cd "$INSTALL_DIR"
+git config --global --add safe.directory "$INSTALL_DIR" 2>/dev/null || true
+git pull
+
+bash scripts/install-postgresql-ubuntu.sh
+bash scripts/setup-postgres-ubuntu.sh
+
+if [ ! -f .env ]; then
+  cp .env.example .env
+  if command -v openssl >/dev/null; then
+    SECRET=$(openssl rand -hex 32)
+    sed -i "s/change-me-to-a-long-random-string/${SECRET}/" .env
+  fi
+  if ! grep -q '^DATABASE_URL=' .env; then
+    echo 'DATABASE_URL=postgresql://shop:shop@127.0.0.1:5432/shop' >> .env
+  fi
+  echo "Создан .env — проверьте SITE_URL и SMTP"
+fi
+
+npm install --omit=dev
+
+if [ -f deploy/shop.service ]; then
+  cp -f deploy/shop.service /etc/systemd/system/shop.service
+  # Подставить фактический путь в unit
+  sed -i "s|WorkingDirectory=.*|WorkingDirectory=${INSTALL_DIR}|" /etc/systemd/system/shop.service
+  sed -i "s|EnvironmentFile=.*|EnvironmentFile=${INSTALL_DIR}/.env|" /etc/systemd/system/shop.service
+  systemctl daemon-reload
+  systemctl enable shop 2>/dev/null || true
+  systemctl restart shop
+  sleep 2
+  curl -sf http://127.0.0.1:3000/health && echo && echo "OK — shop запущен (systemd)"
+  systemctl reload caddy 2>/dev/null || true
+else
+  echo "deploy/shop.service не найден — запустите: npm start"
+fi
+
+echo ""
+echo "Обновления в будущем:"
+echo "  bash ${INSTALL_DIR}/scripts/server-update.sh"
diff --git a/scripts/setup-postgres-ubuntu.sh b/scripts/setup-postgres-ubuntu.sh
index ff56393..a9ec8ab 100644
--- a/scripts/setup-postgres-ubuntu.sh
+++ b/scripts/setup-postgres-ubuntu.sh
@@ -1,16 +1,18 @@
 #!/bin/bash
-# PostgreSQL 17 на Ubuntu — установка службы, пользователь и БД shop
-# Запуск: sudo bash scripts/setup-postgres-ubuntu.sh
+# PostgreSQL — пользователь и БД shop (после install-postgresql-ubuntu.sh)
+# sudo bash scripts/setup-postgres-ubuntu.sh
 set -euo pipefail
 
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+SHOP_ROOT="${SHOP_ROOT:-$(cd "$SCRIPT_DIR/.." && pwd)}"
+
 DB_USER="${DB_USER:-shop}"
 DB_PASS="${DB_PASS:-shop}"
 DB_NAME="${DB_NAME:-shop}"
 
 if ! command -v psql >/dev/null; then
-  echo "PostgreSQL не установлен."
-  echo "  apt install -y postgresql-17 postgresql-client-17"
-  echo "  systemctl enable --now postgresql"
+  echo "PostgreSQL не установлен. Запустите:"
+  echo "  sudo bash $SCRIPT_DIR/install-postgresql-ubuntu.sh"
   exit 1
 fi
 
@@ -52,7 +54,7 @@ EOF
 
 echo ""
 echo "PostgreSQL готов."
-echo "Добавьте в /opt/shop/.env:"
+echo "Добавьте в ${SHOP_ROOT}/.env:"
 echo "DATABASE_URL=postgresql://${DB_USER}:${DB_PASS}@127.0.0.1:5432/${DB_NAME}"
 echo ""
 echo "Проверка: psql \"postgresql://${DB_USER}:${DB_PASS}@127.0.0.1:5432/${DB_NAME}\" -c 'SELECT 1'"
diff --git a/wiki/Home.md b/wiki/Home.md
index cfaa658..424caeb 100644
--- a/wiki/Home.md
+++ b/wiki/Home.md
@@ -1,4 +1,4 @@
-# Shop — документация v0.10.0
+# Shop — документация v0.20.0
 
 Интернет-магазин на **Node.js** и **PostgreSQL 17**.
 
@@ -30,9 +30,15 @@ cp .env.docker.example .env && docker compose up -d --build
 ### Без Docker
 
 ```bash
-git clone https://git.evilfox.cc/test/shop10.git && cd shop10
-git checkout v0.10.0
-# см. Install-Native
+git clone https://git.evilfox.cc/test/shop10.git /opt/shop/shop10
+cd /opt/shop/shop10
+sudo bash scripts/quick-deploy-ubuntu.sh
+```
+
+Обновление на работающем сервере:
+
+```bash
+bash /opt/shop/shop10/scripts/server-update.sh
 ```
 
 ## Проверка работы
diff --git a/wiki/Install-Native.md b/wiki/Install-Native.md
index 2053e64..542ff25 100644
--- a/wiki/Install-Native.md
+++ b/wiki/Install-Native.md
@@ -26,38 +26,26 @@ node -v   # v20.x
 
 ### PostgreSQL 17
 
-```bash
-apt install -y postgresql-17 postgresql-client-17
-systemctl enable postgresql
-systemctl start postgresql
-pg_isready -h 127.0.0.1 -p 5432
-```
-
-Если пакет `postgresql-17` не найден — [репозиторий PGDG](https://www.postgresql.org/download/linux/ubuntu/):
+Не используйте `apt install postgresql-17` без PGDG — пакет не найдётся. Скрипт подключает PGDG автоматически:
 
 ```bash
-apt install -y curl ca-certificates
-install -d /usr/share/postgresql-common/pgdg
-curl -o /usr/share/postgresql-common/pgdg/apt.postgresql.org.asc --fail \
-  https://www.postgresql.org/media/keys/ACCC4CF8.asc
-sh -c 'echo "deb [signed-by=/usr/share/postgresql-common/pgdg/apt.postgresql.org.asc] https://apt.postgresql.org/pub/repos/apt $(. /etc/os-release && echo ${VERSION_CODENAME}-pgdg) main" > /etc/apt/sources.list.d/pgdg.list'
-apt update
-apt install -y postgresql-17 postgresql-client-17
+sudo bash /opt/shop/shop10/scripts/install-postgresql-ubuntu.sh
 ```
 
 ## 3. Клонирование проекта
 
 ```bash
-cd /opt
-git clone https://git.evilfox.cc/test/shop10.git shop
-cd shop
-git checkout v0.10.0
+git clone https://git.evilfox.cc/test/shop10.git /opt/shop/shop10
+cd /opt/shop/shop10/shop10
+git checkout v0.20.0
 ```
 
+Или быстрая установка всего стека: `sudo bash scripts/quick-deploy-ubuntu.sh`
+
 ## 4. База данных PostgreSQL
 
 ```bash
-cd /opt/shop
+cd /opt/shop/shop10/shop10
 bash scripts/setup-postgres-ubuntu.sh
 ```
 
@@ -101,7 +89,7 @@ openssl rand -hex 32
 ## 6. Установка зависимостей Node.js
 
 ```bash
-cd /opt/shop
+cd /opt/shop/shop10
 npm install --omit=dev
 ```
 
@@ -110,7 +98,7 @@ npm install --omit=dev
 ## 7. Служба systemd
 
 ```bash
-cp /opt/shop/deploy/shop.service /etc/systemd/system/shop.service
+cp /opt/shop/shop10/deploy/shop.service /etc/systemd/system/shop.service
 systemctl daemon-reload
 systemctl enable shop
 systemctl start shop
@@ -152,7 +140,7 @@ apt update && apt install -y caddy
 Конфигурация:
 
 ```bash
-cp /opt/shop/caddy/Caddyfile.example /etc/caddy/Caddyfile
+cp /opt/shop/shop10/caddy/Caddyfile.example /etc/caddy/Caddyfile
 nano /etc/caddy/Caddyfile
 ```
 
@@ -195,7 +183,7 @@ systemctl daemon-reload
 ## 10. Обновление
 
 ```bash
-cd /opt/shop/shop10
+cd /opt/shop/shop10/shop10
 git config --global --add safe.directory "$(pwd)"
 bash scripts/server-update.sh
 ```
diff --git a/wiki/Troubleshooting.md b/wiki/Troubleshooting.md
index 2e66059..8437a8c 100644
--- a/wiki/Troubleshooting.md
+++ b/wiki/Troubleshooting.md
@@ -8,6 +8,28 @@ bash /opt/shop/shop10/scripts/diagnose-502.sh
 
 (замените путь на каталог вашего клона — где есть `package.json`)
 
+## Ошибки при «быстром развёртывании»
+
+| Ошибка | Причина | Решение |
+|--------|---------|---------|
+| `Unable to locate package postgresql-17` | В Ubuntu нет PG 17 без PGDG | `sudo bash /opt/shop/shop10/scripts/install-postgresql-ubuntu.sh` |
+| `URL_РЕПОЗИТОРИЯ: No such file` | Скопирован placeholder из README | Используйте реальный URL: `git clone https://git.evilfox.cc/test/shop10.git /opt/shop/shop10` |
+| `package.json` в `/opt/shop` | Неверный каталог | Репозиторий в `/opt/shop/shop10` |
+| Изменения не применились | `git pull` не в том каталоге | `bash /opt/shop/shop10/scripts/server-update.sh` |
+
+Полное развёртывание / обновление:
+
+```bash
+cd /opt/shop/shop10 && git pull
+sudo bash scripts/quick-deploy-ubuntu.sh
+```
+
+Только обновление кода (сайт уже работает):
+
+```bash
+bash /opt/shop/shop10/scripts/server-update.sh
+```
+
 ## scripts/server-update.sh: No such file or directory
 
 Вы не в каталоге репозитория или клон в подпапке (например `/opt/shop/shop10`):
@@ -40,7 +62,7 @@ journalctl -u shop -n 30 --no-pager
 PostgreSQL не запущен или не установлен.
 
 ```bash
-bash /opt/shop/scripts/fix-db-connection.sh
+bash /opt/shop/shop10/scripts/fix-db-connection.sh
 ```
 
 Или вручную:
@@ -51,7 +73,7 @@ pg_isready -h 127.0.0.1 -p 5432
 bash scripts/setup-postgres-ubuntu.sh
 ```
 
-Проверьте `DATABASE_URL` в `/opt/shop/.env`.
+Проверьте `DATABASE_URL` в `/opt/shop/shop10/.env`.
 
 ---
 
@@ -60,7 +82,7 @@ bash scripts/setup-postgres-ubuntu.sh
 В логе только «База уже содержит товары» без строки `Магазин: http://...`:
 
 ```bash
-cd /opt/shop && git pull   # нужен исправленный seed.js (v0.10.0+)
+bash /opt/shop/shop10/scripts/server-update.sh
 systemctl restart shop
 ```