diff --git a/Makefile b/Makefile
index 0af44ab52..b10d41c77 100644
--- a/Makefile
+++ b/Makefile
@@ -41,6 +41,9 @@ release:
 ############################################
 ##### UNIFIED FRONTEND/BACKEND TARGETS #####
 
+.PHONY: serve
+serve: serve-frontend serve-backend
+
 .PHONY: compile
 compile: compile-frontend compile-backend
 
@@ -68,9 +71,9 @@ test: test-frontend test-backend i18n-check
 --compile-frontend:
 	npx -- webpack --progress $(WATCH)
 
-.PHONY: --frontend-watch
---frontend-watch: WATCH=--watch
---frontend-watch: --compile-frontend;
+.PHONY: --serve-frontend
+--serve-frontend: WATCH=--watch
+--serve-frontend: --compile-frontend;
 
 .PHONY: --lint-frontend
 --lint-frontend: eslint.config.js
@@ -82,6 +85,7 @@ test: test-frontend test-backend i18n-check
 	@echo Karma frontend tests are currently broken after npm update and have therefor been temporarily disabled.
 # npx -- karma start --conf karma.conf.cjs $(WATCH)
 
+# TODO: rewrite
 .PHONY: --test-frontend-watch
 --test-frontend-watch: WATCH=--single-run false
 --test-frontend-watch: --test-frontend;
@@ -136,11 +140,15 @@ well-known/.well-known:
 --%-backend-dev: stackopts=--flag uniworx:dev
 --%-backend-dev: --image-build --%-backend;
 
-.PHONY: --backend-%-prod
+.PHONY: --%-backend-prod
 --%-backend-prod: FRADRIVE_SERVICE=backend
 --%-backend-prod: stackopts=--flag uniworx:-dev
 --%-backend-prod: --image-build --%-backend;
 
+.PHONY: --serve-backend
+--serve-backend: .stack-work.lock
+	./start.sh
+
 .PHONY: --compile-backend
 --compile-backend:
 	stack build --fast --profile --library-profiling --executable-profiling --flag uniworx:-library-only --copy-bins --local-bin-path $$(pwd)/bin $(stackopts)
diff --git a/docker/backend/Dockerfile b/docker/backend/Dockerfile
index 098bfdfa5..ff7b51db1 100644
--- a/docker/backend/Dockerfile
+++ b/docker/backend/Dockerfile
@@ -21,4 +21,7 @@ ENV STACK_ROOT=/.stack
 RUN make .stack STACK_ROOT=${STACK_ROOT} IN_CONTAINER=true
 
 ENV FRADRIVE_MAKE_TARGET=backend-build
-ENTRYPOINT make -- ${FRADRIVE_MAKE_TARGET} STACK_ROOT=${STACK_ROOT} IN_CONTAINER=true
\ No newline at end of file
+ENTRYPOINT make -- ${FRADRIVE_MAKE_TARGET} STACK_ROOT=${STACK_ROOT} IN_CONTAINER=true
+
+# export full develop port range
+EXPOSE TODO/tcp
\ No newline at end of file
diff --git a/start.sh b/start.sh
index fb7492ae7..e69a976b4 100755
--- a/start.sh
+++ b/start.sh
@@ -2,18 +2,11 @@
 
 set -e
 
-# SPDX-FileCopyrightText: 2022 Gregor Kleen <gregor.kleen@ifi.lmu.de>,Sarah Vaupel <vaupel.sarah@campus.lmu.de>,Steffen Jost <jost@tcs.ifi.lmu.de>
+# SPDX-FileCopyrightText: 2022-2024 Sarah Vaupel <sarah.vaupel@uniworx.de>, Gregor Kleen <gregor.kleen@ifi.lmu.de>, Sarah Vaupel <vaupel.sarah@campus.lmu.de>, Steffen Jost <jost@tcs.ifi.lmu.de>
 #
 # SPDX-License-Identifier: AGPL-3.0-or-later
 
 
-[ "${FLOCKER}" != "$0" ] && exec env FLOCKER="$0" flock -en .stack-work.lock "$0" "$@" || :
-
-if ! in-develop | grep -q 'In develop'; then
-    printf "Not in develop"
-    exit 1
-fi   
-
 __HOST=${HOST:-$(hostname -s | awk '{ print $0; }')}
 
 export DETAILED_LOGGING=${DETAILED_LOGGING:-true}
@@ -28,11 +21,10 @@ export ENCRYPT_ERRORS=${ENCRYPT_ERRORS:-false}
 export RIBBON=${RIBBON:-${__HOST:-localhost}}
 export APPROOT=${APPROOT:-http://localhost:$((${PORT_OFFSET:-0} + 3000))}
 export AVSPASS=${AVSPASS:-nopasswordset}
-export PATH=${PATH:/home/jost/projects/fradrive}
-export MAIL_REROUTE_TO_NAME='Steffen Jost'
-export MAIL_REROUTE_TO_EMAIL=jost@tcs.ifi.lmu.de
 unset HOST
 
+export PORT_OFFSET=$(((16#$(sha256sum <<<"$(hostname -f):''${basePath}" | head -c 16)) % 1000))
+
 move-back() {
     mv -vT .stack-work .stack-work-run
     [[ -d .stack-work-build ]] && mv -vT .stack-work-build .stack-work