diff --git a/contrib/just/start/Justfile b/contrib/just/start/Justfile
index 92ac202438..7f5aeb018f 100644
--- a/contrib/just/start/Justfile
+++ b/contrib/just/start/Justfile
@@ -70,9 +70,9 @@ josm:
   @echo "\033[0;33m ############################################### \033[0m"
   @echo
 
-# Start FMTM with tunnels
+# Externally accessible ODK Central for tests
 [no-cd]
-tunnel:
+odk-tunnel:
   #!/usr/bin/env sh
 
   docker compose \
@@ -85,36 +85,25 @@ tunnel:
   # Wait until services ready without HEALTHCHECK
   sleep 5
 
-  fmtm_url=$(just --unstable start _get-tunnel-url 'frontend')
-  api_url=$(just --unstable start _get-tunnel-url 'api')
   odk_url=$(just --unstable start _get-tunnel-url 'central')
-  s3_url=$(just --unstable start _get-tunnel-url 's3')
 
-  just --unstable dotenv update "EXTRA_CORS_ORIGINS" "${fmtm_url}"
-  just --unstable dotenv update "S3_ENDPOINT" "${s3_url}"
-
-  # Restart the containers with env vars set
-  # (API url for frontend, domain for Central form download urls)
+  # Restart Central with DOMAIN var set to new tunnel URL.
+  # Is is required to correctly download forms from Collect
   CENTRAL_DOMAIN_OVERRIDE="$(echo "${odk_url}" | sed 's|^https://||')" \
-  API_URL="$(echo "${api_url}" | sed 's|^https://||')" \
   docker compose \
     -f docker-compose.yml \
     -f contrib/tunnel/docker-compose.yml \
-    up -d api ui central
+    up -d central
 
-  just --unstable start _print-tunnel-urls "$fmtm_url" "$api_url" "$odk_url" "$s3_url"
+  just --unstable start _print-tunnel-url "$odk_url"
 
 # View the URLs for created tunnels
 [no-cd]
-view-tunnel-urls:
+view-tunnel-url:
   #!/usr/bin/env sh
 
-  fmtm_url=$(just --unstable start _get-tunnel-url 'frontend')
-  api_url=$(just --unstable start _get-tunnel-url 'api')
   odk_url=$(just --unstable start _get-tunnel-url 'central')
-  s3_url=$(just --unstable start _get-tunnel-url 's3')
-
-  just --unstable start _print-tunnel-urls "$fmtm_url" "$api_url" "$odk_url" "$s3_url"
+  just --unstable start _print-tunnel-url "$odk_url"
 
 [no-cd]
 _get-tunnel-url service_name:
@@ -130,24 +119,12 @@ _get-tunnel-url service_name:
   echo "$service_url"
 
 [no-cd]
-_print-tunnel-urls fmtm_url api_url odk_url s3_url:
+_print-tunnel-url odk_url:
   @echo
   @echo "\033[0;33m ############################################### \033[0m"
   @echo
-  @echo "\033[0;34m FMTM URL: \033[0m"
-  @echo " {{fmtm_url}}"
-  @echo
-  @echo "\033[0;34m API URL: \033[0m"
-  @echo " {{api_url}}"
-  @echo
   @echo "\033[0;34m ODK Central URL: \033[0m"
   @echo " {{odk_url}}"
   @echo
-  @echo "\033[0;34m S3 URL: \033[0m"
-  @echo " {{s3_url}}"
-  @echo
   @echo "\033[0;33m ############################################### \033[0m"
   @echo
-
-
-
diff --git a/contrib/tunnel/docker-compose.yml b/contrib/tunnel/docker-compose.yml
index 3b29b9fb0d..192a5e979b 100644
--- a/contrib/tunnel/docker-compose.yml
+++ b/contrib/tunnel/docker-compose.yml
@@ -1,4 +1,4 @@
-# Copyright (c) 2022, 2023 Humanitarian OpenStreetMap Team
+# Copyright (c) Humanitarian OpenStreetMap Team
 # This file is part of FMTM.
 #
 #     FMTM is free software: you can redistribute it and/or modify
@@ -20,26 +20,6 @@ networks:
     name: fmtm-${GIT_BRANCH:-local}
 
 services:
-  frontend-tunnel:
-    image: "docker.io/cloudflare/cloudflared:2024.10.1"
-    depends_on:
-      proxy:
-        condition: service_healthy
-    networks:
-      - fmtm-net
-    restart: "unless-stopped"
-    command: tunnel --url http://proxy:80
-
-  api-tunnel:
-    image: "docker.io/cloudflare/cloudflared:2024.10.1"
-    depends_on:
-      api:
-        condition: service_healthy
-    networks:
-      - fmtm-net
-    restart: "unless-stopped"
-    command: tunnel --url http://api:8000
-
   central-tunnel:
     image: "docker.io/cloudflare/cloudflared:2024.10.1"
     depends_on:
@@ -49,13 +29,3 @@ services:
       - fmtm-net
     restart: "unless-stopped"
     command: tunnel --url http://central:8383
-
-  s3-tunnel:
-    image: "docker.io/cloudflare/cloudflared:2024.10.1"
-    depends_on:
-      s3:
-        condition: service_healthy
-    networks:
-      - fmtm-net
-    restart: "unless-stopped"
-    command: tunnel --url http://s3:9000
diff --git a/docs/dev/Backend.md b/docs/dev/Backend.md
index 0602dc84a4..50658c9fd3 100644
--- a/docs/dev/Backend.md
+++ b/docs/dev/Backend.md
@@ -277,29 +277,20 @@ This adds JOSM to the docker compose stack for local development.
 
 You can now call the JOSM API from FMTM and changes will be reflected in the GUI.
 
-### Debugging local services on mobile
+### Debugging ODK forms when running on localhost
 
-- It's difficult to debug services running on localhost from your mobile phone.
-- An easy way to do this is by tunneling: Cloudflare provides a great free
-  solution for this (an alternative is Ngrok).
-- We may also wish to debug our local ODK Central instance forms on our mobile ODK
-  Collect.
-- To handle both of these instances set up tunnels for all services with:
+- ODK Collect requires an externally accessible instance of Central.
+- To achieve this for local development / debugging, a good solution is Cloudflare
+  tunnelling (alternative to Ngrok).
+- There is a helper script to do this automatically for you:
 
-```bash
-just start tunnel
-```
-
-To complete this setup, two additional steps must be complete:
-
-- **Requirement 1**: For login to work, use the temporary login.
-
-- **Requirement 2**: During project creation, set the ODK Central server URL
-  to the provided tunnel URL for the ODK Central API.
+  ```bash
+  just start odk-tunnel
+  ```
 
-  > The credentials for the local ODK Central instance are:
-  > Username: <admin@hotosm.org>
-  > Password: Password1234
+Once started, use the output ODK Central URL from the terminal during
+project creation. The QRCode should now work in ODK Collect.
 
-Now when you access the project via a QRCode on mobile, the connection to ODK
-Central should work.
+> The credentials for the local ODK Central instance are:
+> Username: <admin@hotosm.org>
+> Password: Password1234