diff --git a/Dockerfile b/Dockerfile
index 4f50391..16aa994 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,18 +1,37 @@
-FROM alpine as asset
-COPY ./ /
-RUN sh /asset.sh
+ARG ALPINE="alpine:3.15"
 
-FROM alpine
-COPY --from=asset /tmp/alltube/ /var/www/alltube/
-RUN apk --update add --no-cache nginx ffmpeg python3 php php-fpm php-dom php-xml php-zip php-gmp php-json php-phar php-intl php-openssl php-mbstring php-gettext php-xmlwriter php-tokenizer php-simplexml && \
-    rm -rf /var/www/localhost && rm -rf /etc/nginx/http.d && \
-    mv -f /var/www/alltube/nginx.conf /etc/nginx/ && \
-    ln -s /usr/bin/python3 /usr/bin/python && \
-    mv /var/www/alltube/init.sh / && \
-    php /var/www/alltube/composer-setup.php && rm -f /var/www/alltube/composer-setup.php && \
-    mv ./composer.phar /usr/bin/composer && \
-    chmod 777 /var/www/alltube/templates_c && \
-    cd /var/www/alltube && composer install && \
-    cd ./config && mv config.example.yml config.yml
-EXPOSE 80
-CMD ["sh","init.sh"]
+FROM ${ALPINE} as composer
+# TODO: remove php-json after php8 (>=alpine:3.16)
+RUN apk add php php-phar php-iconv php-openssl php-json
+RUN wget https://install.phpcomposer.com/installer
+RUN php installer
+
+FROM ${ALPINE} as build
+ENV ALLTUBE="3.1.1"
+RUN apk add php php-phar php-mbstring php-openssl
+# TODO: remove php-json after php8 (>=alpine:3.16)
+RUN apk add php-dom php-gmp php-xml php-intl php-json php-gettext php-simplexml php-tokenizer php-xmlwriter
+RUN wget https://github.com/Rudloff/alltube/releases/download/${ALLTUBE}/alltube-${ALLTUBE}.zip && \
+    unzip alltube-${ALLTUBE}.zip
+COPY --from=composer /composer.phar /usr/bin/composer
+WORKDIR ./alltube/
+RUN composer install --prefer-dist --no-progress --no-dev --optimize-autoloader
+RUN chmod 777 ./templates_c/
+WORKDIR ./config/
+RUN mv ./config.example.yml ./config.yml
+
+FROM ${ALPINE}
+# TODO: remove php-json after php8 (>=alpine:3.16)
+# TODO: /usr/bin/python already exist after alpine:3.17
+RUN apk add --no-cache nginx python3 php-fpm php-mbstring \
+      php-dom php-gmp php-xml php-intl php-json php-gettext php-simplexml php-tokenizer php-xmlwriter
+
+COPY --from=build /alltube/ /var/www/alltube/
+
+#RUN apk add php-zip
+#RUN
+#    mv -f /var/www/alltube/nginx.conf /etc/nginx/ && \
+#    mv /var/www/alltube/init.sh / && \
+
+#EXPOSE 80
+#CMD ["sh","init.sh"]