diff --git a/.github/workflows/verify-pr.yml b/.github/workflows/verify-pr.yml
index 3fe4129c3e2..4192ed5bd51 100644
--- a/.github/workflows/verify-pr.yml
+++ b/.github/workflows/verify-pr.yml
@@ -64,5 +64,6 @@ jobs:
           MINECRAFT_VERSION: ${{ matrix.mcVersion }}
           VARIANT: ${{ matrix.variant }}
           MODS_FORGEAPI_KEY: ${{ secrets.MODS_FORGEAPI_KEY }}
+          DEBUG: ${{ runner.debug }}
         run: |
           tests/test.sh
diff --git a/Dockerfile b/Dockerfile
index e08bcf4a2a8..e2bb057aa2d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -46,7 +46,7 @@ RUN easy-add --var os=${TARGETOS} --var arch=${TARGETARCH}${TARGETVARIANT} \
   --var version=0.1.1 --var app=maven-metadata-release --file {{.app}} \
   --from https://github.com/itzg/{{.app}}/releases/download/{{.version}}/{{.app}}_{{.version}}_{{.os}}_{{.arch}}.tar.gz
 
-ARG MC_HELPER_VERSION=1.22.4
+ARG MC_HELPER_VERSION=1.22.6
 ARG MC_HELPER_RELEASE=v${MC_HELPER_VERSION}
 ARG MC_HELPER_BASE_URL=https://github.com/itzg/mc-image-helper/releases/download/${MC_HELPER_RELEASE}
 RUN curl -fsSL ${MC_HELPER_BASE_URL}/mc-image-helper-${MC_HELPER_VERSION}.tgz \
diff --git a/examples/.gitignore b/examples/.gitignore
index 5fac628525f..a67cdf21038 100644
--- a/examples/.gitignore
+++ b/examples/.gitignore
@@ -1 +1,2 @@
-/data/
\ No newline at end of file
+/data/
+modpacks/
\ No newline at end of file
diff --git a/examples/docker-compose-mods-mount.yml b/examples/docker-compose-mods-mount.yml
new file mode 100644
index 00000000000..3ad145f1026
--- /dev/null
+++ b/examples/docker-compose-mods-mount.yml
@@ -0,0 +1,21 @@
+version: '3.8'
+
+services:
+  minecraft:
+    image: itzg/minecraft-server
+    volumes:
+      - data:/data
+      - ./mods:/mods
+    ports:
+      - "25565:25565"
+    environment:
+      EULA: "true"
+      TYPE: "FORGE"
+      VERSION: "1.19.2"
+      DEBUG: "true"
+      SETUP_ONLY: "true"
+    tty: True
+    stdin_open: True
+
+volumes:
+  data: {}
\ No newline at end of file
diff --git a/examples/valhelsia2/docker-compose.yml b/examples/valhelsia2/docker-compose.yml
new file mode 100644
index 00000000000..3dfb367d06a
--- /dev/null
+++ b/examples/valhelsia2/docker-compose.yml
@@ -0,0 +1,21 @@
+version: '3.8'
+
+services:
+  mc:
+    image: itzg/minecraft-server:java8-multiarch
+    volumes:
+      - data:/data
+      - ./modpacks:/modpacks:ro
+    environment:
+      EULA: "true"
+      TYPE: FORGE
+      VERSION: "1.15.2"
+      GENERIC_PACK: /modpacks/Valhelsia_2-2.3.4-SERVER.zip
+      MEMORY: "2G"
+    ports:
+      - "25565:25565"
+    healthcheck:
+      test: NONE
+
+volumes:
+  data: {}
\ No newline at end of file
diff --git a/scripts/start-setupEnvVariables b/scripts/start-setupEnvVariables
index 42eae28f742..970afb6eee0 100755
--- a/scripts/start-setupEnvVariables
+++ b/scripts/start-setupEnvVariables
@@ -17,7 +17,7 @@ set -e
 if isTrue "${REPLACE_ENV_IN_PLACE}"; then
   log "Replacing env variables in ${REPLACE_ENV_PATHS} that match the prefix $REPLACE_ENV_VARIABLE_PREFIX ..."
 
-  mc-image-helper --debug=${DEBUG} interpolate \
+  mc-image-helper interpolate \
     --replace-env-file-suffixes="${REPLACE_ENV_SUFFIXES}" \
     --replace-env-excludes="${REPLACE_ENV_VARIABLES_EXCLUDES}" \
     --replace-env-exclude-paths="${REPLACE_ENV_VARIABLES_EXCLUDE_PATHS}" \
@@ -27,7 +27,7 @@ fi
 
 if [[ ${PATCH_DEFINITIONS} ]]; then
   log "Applying patch definitions from ${PATCH_DEFINITIONS}"
-  mc-image-helper --debug=${DEBUG} patch \
+  mc-image-helper patch \
     --patch-env-prefix="${REPLACE_ENV_VARIABLE_PREFIX}" \
     "${PATCH_DEFINITIONS}"
 fi
diff --git a/scripts/start-setupModpack b/scripts/start-setupModpack
index 71b988e75de..a6ddbb578fc 100755
--- a/scripts/start-setupModpack
+++ b/scripts/start-setupModpack
@@ -22,39 +22,26 @@ if isTrue "${REMOVE_OLD_MODS}" && [ -z "${MODS_FILE}" ]; then
   rm -f "$sum_file"
 fi
 
-# If packwiz url passed, bootstrap packwiz and update mods before other modpack processing
-if [[ "${PACKWIZ_URL:-}" ]]; then
-  # Ensure we have the latest packwiz bootstrap installer
-  latestPackwiz=$(get_from_gh "https://api.github.com/repos/packwiz/packwiz-installer-bootstrap/releases/latest")
-  if [[ -z "${latestPackwiz}" ]]; then
-    log "WARNING: Could not retrieve Packwiz bootstrap installer release information"
-  else
-    isDebugging && log "Latest packwiz ${latestPackwiz}"
-    latestPackwizVer=$(echo "${latestPackwiz}" | jq --raw-output '.tag_name')
-    latestPackwizUrl=$(echo "${latestPackwiz}" | jq --raw-output '.assets[] | select(.name | match("packwiz-installer-bootstrap.jar")) | .url')
-   : "${PACKWIZ_BOOTSTRAP_JAR:=packwiz-installer-bootstrap_${latestPackwizVer}.jar}"
-   if [[ ! -e $PACKWIZ_BOOTSTRAP_JAR ]]; then
-      log "Downloading Packwiz ${latestPackwizVer}"
-      if ! curl -H "Accept:application/octet-stream" -o "$PACKWIZ_BOOTSTRAP_JAR" -fsSL ${latestPackwizUrl}; then
-        log "ERROR: failed to download Packwiz bootstrap installer"
-        exit 1
-      fi
+function handlePackwiz() {
+  # If packwiz url passed, bootstrap packwiz and update mods before other modpack processing
+  if [[ "${PACKWIZ_URL:-}" ]]; then
+    if ! packwizInstaller=$(mc-image-helper maven-download \
+                           --maven-repo=https://maven.packwiz.infra.link/repository/release/ \
+                           --group=link.infra.packwiz --artifact=packwiz-installer --classifier=dist \
+                           --skip-existing); then
+      log "ERROR: failed to get packwiz installer"
+      exit 1
+    fi
+
+    log "Running packwiz installer against URL: ${PACKWIZ_URL}"
+    if ! java -cp "${packwizInstaller}" link.infra.packwiz.installer.Main "${PACKWIZ_URL}"; then
+      log "ERROR failed to run packwiz installer"
+      exit 1
     fi
   fi
-  log "Running packwiz installer against URL: ${PACKWIZ_URL}"
-  java -jar "${PACKWIZ_BOOTSTRAP_JAR}" -g -s server "${PACKWIZ_URL}"
-  #if bootstrap download fails, download installer manually - then run without updating
-  returnVal=$?
-  if [[ $returnVal ]]; then
-    latestPackwizInstaller=$(get_from_gh "https://api.github.com/repos/packwiz/packwiz-installer/releases/latest")
-    latestPackwizInstallerVer=$(echo "${latestPackwizInstaller}" | jq --raw-output '.tag_name')
-    latestPackwizInstallerUrl=$(echo "${latestPackwizInstaller}" | jq --raw-output '.assets[] | select(.name | match("packwiz-installer.jar")) | .url')
-    log "Packwiz couldn't update - Downloading Packwiz Installer ${latestPackwizInstallerVer}"
-    get_from_gh "${latestPackwizInstallerUrl}" -H "Accept:application/octet-stream" -o "packwiz-installer.jar"
-    java -jar "${PACKWIZ_BOOTSTRAP_JAR}" -g -bootstrap-no-update -s server "${PACKWIZ_URL}"
-  fi
-fi
+}
 
+function handleModpackListOrFile() {
 # If supplied with a URL for a modpack (simple zip of jars), download it and unpack
 if [[ "$MODPACK" ]]; then
   if isURL "${MODPACK}"; then
@@ -149,7 +136,9 @@ elif [[ "$MODS_FILE" ]]; then
     exit 1
   fi
 fi
+}
 
+function handleCurseForgeManifest() {
 if [[ "$MANIFEST" ]]; then
     if [[ -e "$MANIFEST" ]]; then
         EFFECTIVE_MANIFEST_FILE=$MANIFEST
@@ -192,6 +181,7 @@ case "X$EFFECTIVE_MANIFEST_FILE" in
     ;;
 esac
 fi
+}
 
 function genericPacks() {
   : "${GENERIC_PACKS:=${GENERIC_PACK}}"
@@ -291,6 +281,12 @@ function modrinthProjects() {
   fi
 }
 
+handlePackwiz
+
+handleModpackListOrFile
+
+handleCurseForgeManifest
+
 genericPacks
 
 modrinthProjects
diff --git a/scripts/start-setupMounts b/scripts/start-setupMounts
index 6650a38bbb7..c9460b66acb 100755
--- a/scripts/start-setupMounts
+++ b/scripts/start-setupMounts
@@ -30,7 +30,7 @@ if [ -d /plugins ]; then
       mkdir -p /data/plugins
       log "Copying plugins over..."
       mc-image-helper \
-        --debug=${DEBUG} ${subcommand} $updateArg \
+        ${subcommand} $updateArg \
         --replace-env-file-suffixes="${REPLACE_ENV_SUFFIXES}" \
         --replace-env-excludes="${REPLACE_ENV_VARIABLES_EXCLUDES}" \
         --replace-env-exclude-paths="${REPLACE_ENV_VARIABLES_EXCLUDE_PATHS}" \
@@ -46,7 +46,7 @@ fi
 if [ -d /mods ]; then
   log "Copying any mods over..."
   mc-image-helper \
-    --debug=${DEBUG} ${subcommand} $updateArg \
+    ${subcommand} $updateArg \
     --replace-env-file-suffixes="${REPLACE_ENV_SUFFIXES}" \
     --replace-env-excludes="${REPLACE_ENV_VARIABLES_EXCLUDES}" \
     --replace-env-exclude-paths="${REPLACE_ENV_VARIABLES_EXCLUDE_PATHS}" \
@@ -59,7 +59,7 @@ fi
 if [ -d /config ]; then
   log "Copying any configs from /config to ${COPY_CONFIG_DEST}"
   mc-image-helper \
-    --debug=${DEBUG} ${subcommand} $updateArg \
+    ${subcommand} $updateArg \
     --replace-env-file-suffixes="${REPLACE_ENV_SUFFIXES}" \
     --replace-env-excludes="${REPLACE_ENV_VARIABLES_EXCLUDES}" \
     --replace-env-exclude-paths="${REPLACE_ENV_VARIABLES_EXCLUDE_PATHS}" \
diff --git a/scripts/start-utils b/scripts/start-utils
index d2a7f117406..91e3edf1756 100755
--- a/scripts/start-utils
+++ b/scripts/start-utils
@@ -63,47 +63,27 @@ function getFilenameFromUrl() {
 }
 
 function isTrue() {
-  local oldState
-  oldState=$(shopt -po xtrace)
-  shopt -u -o xtrace
-
-  local value=${1,,}
-
-  result=
-
-  case ${value} in
-  true | on)
-    result=0
+  local arg="${1?}"
+  case ${arg,,} in
+  true | on | 1)
+    return 0
     ;;
   *)
-    result=1
+    return 1
     ;;
   esac
-
-  eval "$oldState"
-  return ${result}
 }
 
 function isFalse() {
-  local oldState
-  oldState=$(shopt -po xtrace)
-  shopt -u -o xtrace
-
-  local value=${1,,}
-
-  result=
-
-  case ${value} in
-  false | off)
-    result=0
+  local arg="${1?}"
+  case ${arg,,} in
+  false | off | 0)
+    return 0
     ;;
   *)
-    result=1
+    return 1
     ;;
   esac
-
-  eval "$oldState"
-  return ${result}
 }
 
 function isDebugging() {
diff --git a/tests/setuponlytests/conflicting_world_for_spigot_server/verify.sh b/tests/setuponlytests/conflicting_world_for_spigot_server/verify.sh
index 75daef8d790..9d2f7be4e72 100644
--- a/tests/setuponlytests/conflicting_world_for_spigot_server/verify.sh
+++ b/tests/setuponlytests/conflicting_world_for_spigot_server/verify.sh
@@ -1,5 +1,7 @@
-mc-image-helper assert fileExists world/level.dat && \
-mc-image-helper assert fileExists world_nether/DIM-1/some_spigot_nether_file && \
-mc-image-helper assert fileExists world_the_end/DIM1/some_spigot_end_file && \
-! mc-image-helper assert fileExists world_nether/DIM-1/some_vanilla_nether_file && \
-! mc-image-helper assert fileExists world_the_end/DIM1/some_vanilla_end_file
+mc-image-helper assert fileExists \
+  world/level.dat \
+  world_nether/DIM-1/some_spigot_nether_file \
+  world_the_end/DIM1/some_spigot_end_file
+mc-image-helper assert fileNotExists \
+  world_nether/DIM-1/some_vanilla_nether_file \
+  world_the_end/DIM1/some_vanilla_end_file
diff --git a/tests/setuponlytests/packwiz/docker-compose.yml b/tests/setuponlytests/packwiz/docker-compose.yml
index 8adf17b2fbf..83610b60057 100644
--- a/tests/setuponlytests/packwiz/docker-compose.yml
+++ b/tests/setuponlytests/packwiz/docker-compose.yml
@@ -11,11 +11,11 @@ services:
     image: ${IMAGE_TO_TEST:-itzg/minecraft-server}
     environment:
       EULA: "true"
-      SETUP_ONLY: "true"
       PACKWIZ_URL: http://web/pack.toml
       TYPE: CUSTOM
       CUSTOM_SERVER: /servers/fake.jar
       VERSION: 1.19
+      DEBUG_HELPER: "true"
     volumes:
       - ./data:/data
       - ./fake.jar:/servers/fake.jar
diff --git a/tests/setuponlytests/test.sh b/tests/setuponlytests/test.sh
index e1b5ffe8491..fb0b439921c 100644
--- a/tests/setuponlytests/test.sh
+++ b/tests/setuponlytests/test.sh
@@ -39,8 +39,10 @@ setupOnlyMinecraftTest(){
     fi
   fi
 
+  # false positive since it's used in delta calculations below
+  # shellcheck disable=SC2034
   start=$(date +%s)
-  if ! logs=$(docker compose run mc 2>&1); then
+  if ! logs=$(docker compose run --rm -e SETUP_ONLY=true -e DEBUG="${DEBUG:-false}" mc 2>&1); then
     outputContainerLog "$logs"
     result=1
   elif [ -f verify.sh ]; then