diff --git a/Dockerfile b/Dockerfile
index 0a817ec..4ef62ed 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
-# includes redis
-
 FROM php:8.4-fpm-alpine AS base
 
+ENV DIRBROWSER_VERSION=3.9.0
+
 RUN apk update && apk upgrade
 
 RUN docker-php-ext-install opcache
@@ -20,7 +20,7 @@ RUN apk add --no-cache redis
 
 RUN apk add --no-cache nginx
 
-RUN apk add --no-cache supervisor
+RUN apk add --no-cache bash
 
 RUN apk add --no-cache curl \
   && curl -fSsL https://github.com/adrianschubek/utpp/releases/download/0.5.0/utpp-alpine -o /usr/local/bin/utpp && chmod +x /usr/local/bin/utpp\
@@ -40,16 +40,19 @@ COPY server/nginx/nginx.conf /etc/nginx/nginx.conf
 
 COPY server/nginx/conf.d/default.conf /etc/nginx/conf.d/default.conf
 
-COPY server/supervisor/supervisord.conf /etc/supervisor/conf.d/supervisord.conf
-
 COPY server/php/fpm-pool.conf /usr/local/etc/php-fpm.d/www.conf
 
 COPY server/php/php.ini /usr/local/etc/php/conf.d/custom.ini
 
 COPY src/index.php /var/www/html
 
+# skipped in v3.9
+# COPY src/worker.php /var/www/html
+
 COPY src/init.sh /init.sh
 
+RUN chmod +x /init.sh
+
 ENV THEME=default
 
 ENV DATE_FORMAT=relative
@@ -109,12 +112,13 @@ ENV BATCH_MAX_TOTAL_SIZE=500
 ENV BATCH_MAX_FILE_SIZE=100
 # MB, how much system disk space to keep free at all times
 ENV BATCH_MIN_SYSTEM_FREE_DISK=500
+# watch filesystem
+ENV WORKER_WATCH=true
+# seconds re-scan
+ENV WORKER_SCAN_INTERVAL=60
 
-# TODO Ratelimiting?
-
-RUN chmod +x /init.sh
+ENV WORKER_FORCE_RESCAN=
 
 EXPOSE 8080
 
-# Let supervisord start nginx & php-fpm
 CMD ["/init.sh"]
diff --git a/src/init.sh b/src/init.sh
index 12dbb85..b7381d6 100644
--- a/src/init.sh
+++ b/src/init.sh
@@ -6,28 +6,30 @@ YELLOW='\033[0;33m'
 RED='\033[0;31m'
 GREEN_BG_BLACK_TEXT='\033[42;30m'
 NC='\033[0m' # reset
+MAX_STEPS=5
 
 dbv=$DIRBROWSER_VERSION
 echo -e "${GREEN_BG_BLACK_TEXT} dir-browser v${dbv} by Adrian Schubek${NC}"
 echo -e "${CYAN} -> https://dir.adriansoftware.de <- ${NC}"
 
-echo -e "${YELLOW}[ 1/6 ] Pre-processing configs using utpp... ${NC}"
+echo -e "${YELLOW}[ 1/$MAX_STEPS ] Pre-processing configs using utpp... ${NC}"
 utpp "/etc/nginx/**;/usr/local/etc/php*/**;/var/www/html/*.php"
 
-echo -e "${YELLOW}[ 2/6 ] Starting php-fpm... ${NC}"
+echo -e "${YELLOW}[ 2/$MAX_STEPS ] Starting php-fpm... ${NC}"
 php-fpm -RF &
 
-echo -e "${YELLOW}[ 3/6 ] Starting worker... ${NC}"
-php /var/www/html/worker.php &
+# skipped in v3.9
+# echo -e "${YELLOW}[ 3/$MAX_STEPS ] Starting worker... ${NC}"
+# php /var/www/html/worker.php &
 
-echo -e "${YELLOW}[ 4/6 ] Starting nginx... ${NC}"
+echo -e "${YELLOW}[ 3/$MAX_STEPS ] Starting nginx... ${NC}"
 nginx -g 'daemon off;' &
 
-echo -e "${YELLOW}[ 5/6 ] Starting redis... ${NC}"
+echo -e "${YELLOW}[ 4/$MAX_STEPS ] Starting redis... ${NC}"
 redis-server /etc/redis.conf --save 60 1 &
 
-echo -e "${GREEN}[ 6/6 ] All services running!${NC}"
+echo -e "${GREEN}[ 5/$MAX_STEPS ] All services running!${NC}"
 wait -n
 
-echo -e "${RED}Error: Terminating due to a service exiting...${NC}"
+echo -e "${RED}[ Error ] Terminating due to a service exiting...${NC}"
 exit $?
\ No newline at end of file