From 3f0dd1b09b5aa4ba7f8d6880ed4fef680d285ae8 Mon Sep 17 00:00:00 2001
From: MickLesk <47820557+MickLesk@users.noreply.github.com>
Date: Fri, 23 Oct 2026 20:44:37 +0200
Subject: [PATCH] install: answer every prompt from the environment, survive a
 closed stdin

Every interactive prompt takes a var_<app>_<name> override and treats a
closed stdin like Enter (`|| true`), so an install keeps going after the
console that started it is gone. Values the script cannot do without end
with exit 64 and name the variable to set. Validation loops stop asking
when nobody can answer instead of spinning on an empty read.
---
 install/apache-tomcat-install.sh        | 10 ++++++----
 install/aria2-install.sh                |  2 +-
 install/asterisk-install.sh             |  3 ++-
 install/authelia-install.sh             |  5 ++++-
 install/bichon-install.sh               |  3 ++-
 install/bitmagnet-install.sh            |  6 ++++--
 install/bytestash-install.sh            |  2 +-
 install/caddy-install.sh                |  4 ++--
 install/cloudflare-ddns-install.sh      | 20 ++++++++++++--------
 install/cockpit-install.sh              |  2 +-
 install/comfyui-install.sh              |  3 ++-
 install/cryptpad-install.sh             |  2 +-
 install/docker-install.sh               | 21 ++++++---------------
 install/dotnetaspwebapi-install.sh      |  5 +++--
 install/elementsynapse-install.sh       |  4 +++-
 install/emqx-install.sh                 |  2 +-
 install/fileflows-install.sh            |  8 +++++---
 install/forgejo-runner-install.sh       |  8 ++++----
 install/ghostfolio-install.sh           |  6 ++++--
 install/headscale-install.sh            |  2 +-
 install/influxdb-install.sh             |  5 +++--
 install/kometa-install.sh               | 12 +++++++++---
 install/kutt-install.sh                 |  7 +++++--
 install/languagetool-install.sh         |  6 +++---
 install/linkwarden-install.sh           |  2 +-
 install/mariadb-install.sh              |  4 ++--
 install/mediamanager-install.sh         |  4 +++-
 install/meilisearch-install.sh          |  2 +-
 install/mongodb-install.sh              |  3 ++-
 install/mysql-install.sh                |  6 ++++--
 install/netbird-install.sh              | 15 ++++++++++-----
 install/newt-install.sh                 | 15 +++++++--------
 install/npmplus-install.sh              |  8 ++++++--
 install/opencloud-install.sh            |  6 +++++-
 install/openwebui-install.sh            |  4 ++--
 install/openziti-controller-install.sh  | 15 ++++++++++-----
 install/openziti-tunnel-install.sh      |  3 ++-
 install/pangolin-install.sh             | 10 ++++------
 install/paperless-gpt-install.sh        | 14 ++++++++++----
 install/paperless-ngx-install.sh        |  2 +-
 install/pihole-install.sh               |  4 ++--
 install/pocketid-install.sh             |  4 +++-
 install/podman-homeassistant-install.sh |  4 ++--
 install/podman-install.sh               |  4 ++--
 install/pterodactyl-panel-install.sh    | 12 +++++++++---
 install/rustdeskserver-install.sh       |  7 ++-----
 install/sabnzbd-install.sh              |  2 +-
 install/shelfmark-install.sh            |  6 ++++--
 install/silverbullet-install.sh         |  2 +-
 install/slskd-install.sh                |  2 +-
 install/sqlserver2022-install.sh        |  3 ++-
 install/sqlserver2025-install.sh        |  3 ++-
 install/tinyauth-install.sh             |  8 ++++++--
 install/traefik-install.sh              |  2 +-
 install/twingate-connector-install.sh   | 12 ++++++------
 install/valkey-install.sh               |  4 ++--
 install/versitygw-install.sh            |  2 +-
 install/victoriametrics-install.sh      |  2 +-
 install/wireguard-install.sh            |  4 ++--
 install/zabbix-install.sh               | 10 +++++++---
 60 files changed, 212 insertions(+), 146 deletions(-)

diff --git a/install/apache-tomcat-install.sh b/install/apache-tomcat-install.sh
index 73b2bc169..b2e36959c 100644
--- a/install/apache-tomcat-install.sh
+++ b/install/apache-tomcat-install.sh
@@ -13,12 +13,14 @@ setting_up_container
 network_check
 update_os
 
-read -r -p "${TAB3}Which Tomcat version would you like to install? (9, 10.1, 11): " version
+version="${var_apache_tomcat_version:-}"
+[[ -n "$version" ]] || read -r -p "${TAB3}Which Tomcat version would you like to install? (9, 10.1, 11): " version || true
+jdk_version="${var_apache_tomcat_jdk_version:-}"
 case $version in
 9)
   TOMCAT_VERSION="9"
   echo "Which LTS Java version would you like to use? (8, 11, 17, 21): "
-  read -r jdk_version
+  [[ -n "$jdk_version" ]] || read -r jdk_version || true
   case $jdk_version in
   8 | 11 | 17 | 21)
     JAVA_VERSION="$jdk_version" setup_java
@@ -32,7 +34,7 @@ case $version in
 10 | 10.1)
   TOMCAT_VERSION="10"
   echo "Which LTS Java version would you like to use? (11, 17, 21): "
-  read -r jdk_version
+  [[ -n "$jdk_version" ]] || read -r jdk_version || true
   case $jdk_version in
   11 | 17 | 21)
     JAVA_VERSION="$jdk_version" setup_java
@@ -46,7 +48,7 @@ case $version in
 11)
   TOMCAT_VERSION="11"
   echo "Which LTS Java version would you like to use? (17, 21): "
-  read -r jdk_version
+  [[ -n "$jdk_version" ]] || read -r jdk_version || true
   case $jdk_version in
   17 | 21)
     JAVA_VERSION="$jdk_version" setup_java
diff --git a/install/aria2-install.sh b/install/aria2-install.sh
index cdc65c06b..ce5cba34f 100644
--- a/install/aria2-install.sh
+++ b/install/aria2-install.sh
@@ -18,7 +18,7 @@ $STD apt install -y aria2
 msg_ok "Installed Aria2"
 
 prompt="${var_aria2_ariang:-}"
-[[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to add AriaNG? <y/N> " prompt
+[[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to add AriaNG? <y/N> " prompt || true
 if [[ ${prompt,,} =~ ^(y|yes)$ ]]; then
   msg_info "Installing Dependencies"
   $STD apt install -y nginx
diff --git a/install/asterisk-install.sh b/install/asterisk-install.sh
index 6ade65da5..f74a04ddd 100644
--- a/install/asterisk-install.sh
+++ b/install/asterisk-install.sh
@@ -47,7 +47,8 @@ Choose Asterisk version to install:
 2) Latest LTS ($LTS_VERSION)
 3) Latest Certified ($CERT_VERSION)
 EOF
-read -rp "Enter choice [1-3]: " ASTERISK_CHOICE
+ASTERISK_CHOICE="${var_asterisk_version:-}"
+[[ -n "$ASTERISK_CHOICE" ]] || read -rp "Enter choice [1-3]: " ASTERISK_CHOICE || true
 
 CERTIFIED=0
 case "$ASTERISK_CHOICE" in
diff --git a/install/authelia-install.sh b/install/authelia-install.sh
index aceb2bbf3..dbf8a9fcb 100644
--- a/install/authelia-install.sh
+++ b/install/authelia-install.sh
@@ -17,9 +17,10 @@ fetch_and_deploy_gh_release "authelia" "authelia/authelia" "binary"
 
 MAX_ATTEMPTS=3
 attempt=0
+DOMAIN="${var_authelia_domain:-}"
 while true; do
   attempt=$((attempt + 1))
-  read -rp "${TAB3}Enter your domain or IP (ex. example.com or 192.168.1.100): " DOMAIN
+  [[ -n "$DOMAIN" ]] || read -rp "${TAB3}Enter your domain or IP (ex. example.com or 192.168.1.100): " DOMAIN || true
   if [[ -z "$DOMAIN" ]]; then
     if ((attempt >= MAX_ATTEMPTS)); then
       DOMAIN="${LOCAL_IP:-localhost}"
@@ -40,11 +41,13 @@ while true; do
       break
     else
       msg_warn "Invalid IP address!"
+      DOMAIN=""
     fi
   elif [[ "$DOMAIN" =~ ^[a-zA-Z0-9]([a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(\.[a-zA-Z0-9]([a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*\.[a-zA-Z]{2,}$ ]]; then
     break
   else
     msg_warn "Invalid domain format!"
+    DOMAIN=""
   fi
 done
 msg_info "Setting Authelia up"
diff --git a/install/bichon-install.sh b/install/bichon-install.sh
index ce197056d..75c33c98e 100644
--- a/install/bichon-install.sh
+++ b/install/bichon-install.sh
@@ -15,7 +15,8 @@ update_os
 
 fetch_and_deploy_gh_release "bichon" "rustmailer/bichon" "prebuild" "latest" "/opt/bichon" "bichon-*-$(arch_resolve "x86_64" "aarch64")-unknown-linux-gnu.tar.gz"
 
-read -r -p "${TAB3}Enter the public URL for Bichon (e.g., https://bichon.yourdomain.com) or leave empty to use container IP: " bichon_url
+bichon_url="${var_bichon_url:-}"
+[[ -n "$bichon_url" ]] || read -r -p "${TAB3}Enter the public URL for Bichon (e.g., https://bichon.yourdomain.com) or leave empty to use container IP: " bichon_url || true
 if [[ -z "$bichon_url" ]]; then
   msg_info "No URL provided"
   BICHON_PUBLIC_URL="http://$LOCAL_IP:15630"
diff --git a/install/bitmagnet-install.sh b/install/bitmagnet-install.sh
index 9eea89757..fa4d921ac 100644
--- a/install/bitmagnet-install.sh
+++ b/install/bitmagnet-install.sh
@@ -34,7 +34,8 @@ setup_deb_based() {
   chmod +x bitmagnet
   msg_ok "Configured bitmagnet"
 
-  read -r -p "${TAB3}Enter your TMDB API key if you have one: " tmdbapikey
+  tmdbapikey="${var_bitmagnet_tmdb_api_key:-}"
+  [[ -n "$tmdbapikey" ]] || read -r -p "${TAB3}Enter your TMDB API key if you have one: " tmdbapikey || true
 
   cat <<EOF >/etc/bitmagnet.env
 POSTGRES_HOST=localhost
@@ -99,7 +100,8 @@ setup_alpine() {
   $STD su - postgres -c "psql -c 'CREATE DATABASE bitmagnet;'"
   msg_ok "Built bitmagnet"
 
-  read -rp "${TAB3}Enter your TMDB API key if you have one: " tmdbapikey
+  tmdbapikey="${var_bitmagnet_tmdb_api_key:-}"
+  [[ -n "$tmdbapikey" ]] || read -rp "${TAB3}Enter your TMDB API key if you have one: " tmdbapikey || true
 
   msg_info "Enabling bitmagnet Service"
   cat <<EOF >/etc/init.d/bitmagnet
diff --git a/install/bytestash-install.sh b/install/bytestash-install.sh
index 5b24cca92..ff6688cc0 100644
--- a/install/bytestash-install.sh
+++ b/install/bytestash-install.sh
@@ -25,7 +25,7 @@ $STD npm install
 msg_ok "Installed ByteStash"
 
 allowreg="${var_bytestash_registration:-}"
-[[ -n "$allowreg" ]] || read -rp "${TAB3}Do you want to allow registration of multiple accounts? [y/n]: " allowreg
+[[ -n "$allowreg" ]] || read -rp "${TAB3}Do you want to allow registration of multiple accounts? [y/n]: " allowreg || true
 
 msg_info "Creating Service"
 cat <<EOF >/etc/systemd/system/bytestash-backend.service
diff --git a/install/caddy-install.sh b/install/caddy-install.sh
index 1d24c405d..1f20e7678 100644
--- a/install/caddy-install.sh
+++ b/install/caddy-install.sh
@@ -18,7 +18,7 @@ setup_deb_based() {
   systemctl enable -q --now caddy
 
   prompt="${var_caddy_xcaddy:-}"
-  [[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to install xCaddy Addon? <y/N> " prompt
+  [[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to install xCaddy Addon? <y/N> " prompt || true
   if [[ "${prompt,,}" =~ ^(y|yes)$ ]]; then
     setup_go
     fetch_and_deploy_gh_release "xcaddy" "caddyserver/xcaddy" "binary"
@@ -64,7 +64,7 @@ EOF
   msg_ok "Installed Caddy"
 
   prompt="${var_caddy_xcaddy:-}"
-  [[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to install xCaddy Addon? <y/N> " prompt
+  [[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to install xCaddy Addon? <y/N> " prompt || true
   if [[ "${prompt,,}" =~ ^(y|yes)$ ]]; then
     GO_VERSION="$(curl -fsSL https://go.dev/VERSION?m=text | head -1 | cut -c3-)" setup_go
     fetch_and_deploy_gh_release "xcaddy" "caddyserver/xcaddy" "prebuild" "latest" "/opt/xcaddy" "xcaddy_*_linux_$(arch_resolve).tar.gz"
diff --git a/install/cloudflare-ddns-install.sh b/install/cloudflare-ddns-install.sh
index 18659bbd7..4e7918035 100644
--- a/install/cloudflare-ddns-install.sh
+++ b/install/cloudflare-ddns-install.sh
@@ -13,15 +13,18 @@ setting_up_container
 network_check
 update_os
 
-var_cf_api_token="default"
-read -rp "${TAB3}Enter the Cloudflare API token: " var_cf_api_token
+var_cf_api_token="${var_cf_api_token:-}"
+[[ -n "$var_cf_api_token" ]] || read -rp "${TAB3}Enter the Cloudflare API token: " var_cf_api_token || true
+[[ -n "$var_cf_api_token" ]] || { msg_error "No Cloudflare API token given; set var_cf_api_token or answer the prompt"; exit 64; }
 
-var_cf_domains="default"
-read -rp "${TAB3}Enter the domains separated with a comma (*.example.org,www.example.org) " var_cf_domains
+var_cf_domains="${var_cf_domains:-}"
+[[ -n "$var_cf_domains" ]] || read -rp "${TAB3}Enter the domains separated with a comma (*.example.org,www.example.org) " var_cf_domains || true
+[[ -n "$var_cf_domains" ]] || { msg_error "No domains given; set var_cf_domains or answer the prompt"; exit 64; }
 
 var_cf_proxied="false"
+answer="${var_cloudflare_ddns_proxied:-}"
 while true; do
-  read -rp "${TAB3}Proxied? (y/n): " answer
+  [[ -n "$answer" ]] || read -rp "${TAB3}Proxied? (y/n): " answer || answer="n"
   case "$answer" in
   [Yy]*)
     var_cf_proxied="true"
@@ -31,12 +34,13 @@ while true; do
     var_cf_proxied="false"
     break
     ;;
-  *) echo "Please answer y or n." ;;
+  *) echo "Please answer y or n."; answer="" ;;
   esac
 done
 var_cf_ip6_provider="none"
+answer="${var_cloudflare_ddns_ipv6:-}"
 while true; do
-  read -rp "${TAB3}Enable IPv6 support? (y/n): " answer
+  [[ -n "$answer" ]] || read -rp "${TAB3}Enable IPv6 support? (y/n): " answer || answer="n"
   case "$answer" in
   [Yy]*)
     var_cf_ip6_provider="cloudflare.trace"
@@ -46,7 +50,7 @@ while true; do
     var_cf_ip6_provider="none"
     break
     ;;
-  *) echo "Please answer y or n." ;;
+  *) echo "Please answer y or n."; answer="" ;;
   esac
 done
 msg_ok "Configured Application"
diff --git a/install/cockpit-install.sh b/install/cockpit-install.sh
index 5a59316df..1efb4de37 100644
--- a/install/cockpit-install.sh
+++ b/install/cockpit-install.sh
@@ -33,7 +33,7 @@ msg_ok "Installed Cockpit"
 # 45Drives only publishes amd64 packages
 if [[ "$(arch_resolve)" != "arm64" ]]; then
   prompt="${var_cockpit_45drives:-}"
-  [[ -n "$prompt" ]] || read -r -p "Would you like to install 45Drives' cockpit-file-sharing, cockpit-identities, and cockpit-navigator  <y/N> " prompt
+  [[ -n "$prompt" ]] || read -r -p "Would you like to install 45Drives' cockpit-file-sharing, cockpit-identities, and cockpit-navigator  <y/N> " prompt || true
 fi
 if [[ "${prompt,,}" =~ ^(y|yes)$ ]]; then
   msg_info "Installing 45Drives' cockpit extensions"
diff --git a/install/comfyui-install.sh b/install/comfyui-install.sh
index f1c378c5c..d0ceaa49a 100644
--- a/install/comfyui-install.sh
+++ b/install/comfyui-install.sh
@@ -17,7 +17,8 @@ setup_hwaccel
 echo
 echo "${TAB3}Choose the GPU type for ComfyUI:"
 echo "${TAB3}[1]-None  [2]-NVIDIA  [3]-AMD  [4]-Intel"
-read -rp "${TAB3}Enter your choice [1-4] (default: 1): " gpu_choice
+gpu_choice="${var_comfyui_gpu_type:-}"
+[[ -n "$gpu_choice" ]] || read -rp "${TAB3}Enter your choice [1-4] (default: 1): " gpu_choice || true
 gpu_choice=${gpu_choice:-1}
 case "$gpu_choice" in
 1) comfyui_gpu_type="none" ;;
diff --git a/install/cryptpad-install.sh b/install/cryptpad-install.sh
index 323602f90..42a384ec1 100644
--- a/install/cryptpad-install.sh
+++ b/install/cryptpad-install.sh
@@ -20,7 +20,7 @@ msg_ok "Installed Dependencies"
 NODE_VERSION="22" setup_nodejs
 
 onlyoffice="${var_cryptpad_onlyoffice:-}"
-[[ -n "$onlyoffice" ]] || read -rp "${TAB3}Install OnlyOffice components instead of CKEditor? (Y/N): " onlyoffice
+[[ -n "$onlyoffice" ]] || read -rp "${TAB3}Install OnlyOffice components instead of CKEditor? (Y/N): " onlyoffice || true
 fetch_and_deploy_gh_release "cryptpad" "cryptpad/cryptpad" "tarball"
 
 msg_info "Setup CryptPad"
diff --git a/install/docker-install.sh b/install/docker-install.sh
index 9debc98ae..4c2961d45 100644
--- a/install/docker-install.sh
+++ b/install/docker-install.sh
@@ -15,11 +15,8 @@ update_os
 
 setup_deb_based() {
   setup_docker
-  if [[ -n "${var_docker_socket:-}" ]]; then
-    socket_choice="$var_docker_socket"
-  else
-    read -r -p "${TAB3}Expose Docker TCP socket (insecure) ? [n = No, l = Local only (127.0.0.1), a = All interfaces (0.0.0.0)] <n/l/a>: " socket_choice
-  fi
+  socket_choice="${var_docker_socket:-}"
+  [[ -n "$socket_choice" ]] || read -r -p "${TAB3}Expose Docker TCP socket (insecure) ? [n = No, l = Local only (127.0.0.1), a = All interfaces (0.0.0.0)] <n/l/a>: " socket_choice || true
   case "${socket_choice,,}" in
   l | local)
     socket="tcp://127.0.0.1:2375"
@@ -70,11 +67,8 @@ setup_alpine() {
   msg_ok "Installed Docker"
 
   DOCKER_COMPOSE_LATEST_VERSION=$(get_latest_github_release "docker/compose" false)
-  if [[ -n "${var_docker_compose:-}" ]]; then
-    prompt="$var_docker_compose"
-  else
-    read -r -p "${TAB3}Would you like to add Docker Compose? <y/N> " prompt
-  fi
+  prompt="${var_docker_compose:-}"
+  [[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to add Docker Compose? <y/N> " prompt || true
   if [[ "${prompt,,}" =~ ^(y|yes|true)$ ]]; then
     msg_info "Installing Docker Compose $DOCKER_COMPOSE_LATEST_VERSION"
     DOCKER_CONFIG=${DOCKER_CONFIG:-$HOME/.docker}
@@ -83,11 +77,8 @@ setup_alpine() {
     chmod +x "$DOCKER_CONFIG"/cli-plugins/docker-compose
     msg_ok "Installed Docker Compose $DOCKER_COMPOSE_LATEST_VERSION"
   fi
-  if [[ -n "${var_docker_socket:-}" ]]; then
-    prompt="$var_docker_socket"
-  else
-    read -r -p "${TAB3}Would you like to expose the Docker TCP socket? <y/N> " prompt
-  fi
+  prompt="${var_docker_socket:-}"
+  [[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to expose the Docker TCP socket? <y/N> " prompt || true
   case "${prompt,,}" in
   y | yes | a | all) socket="tcp://0.0.0.0:2375" ;;
   l | local) socket="tcp://127.0.0.1:2375" ;;
diff --git a/install/dotnetaspwebapi-install.sh b/install/dotnetaspwebapi-install.sh
index f67f78e93..4baab89f5 100644
--- a/install/dotnetaspwebapi-install.sh
+++ b/install/dotnetaspwebapi-install.sh
@@ -26,8 +26,9 @@ $STD apt install -y \
   nginx
 msg_ok "Installed Dependencies"
 
-var_project_name="default"
-read -r -p "${TAB3}Type the assembly name of the project: " var_project_name
+var_project_name="${var_project_name:-}"
+[[ -n "$var_project_name" ]] || read -r -p "${TAB3}Type the assembly name of the project: " var_project_name || true
+[[ -n "$var_project_name" ]] || { msg_error "No assembly name given; set var_project_name or answer the prompt"; exit 64; }
 
 msg_info "Setting up FTP Server"
 useradd ftpuser
diff --git a/install/elementsynapse-install.sh b/install/elementsynapse-install.sh
index 3c1689680..3ad0d8ca8 100644
--- a/install/elementsynapse-install.sh
+++ b/install/elementsynapse-install.sh
@@ -23,7 +23,9 @@ NODE_VERSION="22" NODE_MODULE="yarn" setup_nodejs
 
 echo "${TAB3}It is important to choose the name for your server before you install Synapse, because it cannot be changed later."
 echo "${TAB3}The server name determines the “domain” part of user-ids for users on your server: these will all be of the format @user:my.domain.name. It also determines how other matrix servers will reach yours for federation."
-read -p "${TAB3}Please enter the name for your server: " servername
+servername="${var_elementsynapse_server_name:-}"
+[[ -n "$servername" ]] || read -r -p "${TAB3}Please enter the name for your server: " servername || true
+[[ -n "$servername" ]] || { msg_error "No server name given; set var_elementsynapse_server_name or answer the prompt"; exit 64; }
 
 msg_info "Installing Element Synapse"
 setup_deb822_repo "matrix-org" \
diff --git a/install/emqx-install.sh b/install/emqx-install.sh
index 7c7ed9cf6..0f7f44c7e 100644
--- a/install/emqx-install.sh
+++ b/install/emqx-install.sh
@@ -39,7 +39,7 @@ echo "$LATEST_VERSION" >~/.emqx
 msg_ok "Installed EMQX"
 
 prompt="${var_emqx_disable_mq:-}"
-[[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to disable the EMQX MQ feature? (reduces disk/CPU usage) <y/N> " prompt
+[[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to disable the EMQX MQ feature? (reduces disk/CPU usage) <y/N> " prompt || true
 if [[ ${prompt,,} =~ ^(y|yes)$ ]]; then
   msg_info "Disabling EMQX MQ feature"
   mkdir -p /etc/emqx
diff --git a/install/fileflows-install.sh b/install/fileflows-install.sh
index fbb623ae1..0aa3cf08b 100644
--- a/install/fileflows-install.sh
+++ b/install/fileflows-install.sh
@@ -45,7 +45,8 @@ $STD ln -svf /usr/bin/ffmpeg /usr/local/bin/ffmpeg
 $STD ln -svf /usr/bin/ffprobe /usr/local/bin/ffprobe
 $STD rm -rf /opt/fileflows/Server/runtimes/win-*
 
-read -r -p "${TAB3}Do you want to install FileFlows Server or Agent? (S/A): " install_server
+install_server="${var_fileflows_mode:-}"
+[[ -n "$install_server" ]] || read -r -p "${TAB3}Do you want to install FileFlows Server or Agent? (S/A): " install_server || true
 
 if [[ "$install_server" =~ ^[Ss]$ ]]; then
   msg_info "Installing FileFlows Server"
@@ -54,9 +55,10 @@ if [[ "$install_server" =~ ^[Ss]$ ]]; then
   systemctl enable -q --now fileflows
   msg_ok "Installed FileFlows Server"
 else
-  read -r -p "${TAB3}Enter FileFlows Server URL (e.g. http://192.168.1.10:19200): " server_url
+  server_url="${var_fileflows_server_url:-}"
+  [[ -n "$server_url" ]] || read -r -p "${TAB3}Enter FileFlows Server URL (e.g. http://192.168.1.10:19200): " server_url || true
   while [[ -z "${server_url// /}" ]]; do
-    read -r -p "${TAB3}Enter FileFlows Server URL (e.g. http://192.168.1.10:19200): " server_url
+    read -r -p "${TAB3}Enter FileFlows Server URL (e.g. http://192.168.1.10:19200): " server_url || { msg_error "No FileFlows Server URL given; set var_fileflows_server_url or answer the prompt"; exit 64; }
   done
   msg_info "Installing FileFlows Agent"
   cd /opt/fileflows/Agent
diff --git a/install/forgejo-runner-install.sh b/install/forgejo-runner-install.sh
index 23196c174..ca30d4ea1 100644
--- a/install/forgejo-runner-install.sh
+++ b/install/forgejo-runner-install.sh
@@ -15,12 +15,12 @@ update_os
 setup_yq
 
 if [[ -z "${var_forgejo_instance:-}" ]]; then
-  read -r -p "${TAB3}Forgejo Instance URL (e.g. https://codeberg.org): " var_forgejo_instance
+  read -r -p "${TAB3}Forgejo Instance URL (e.g. https://codeberg.org): " var_forgejo_instance || true
   var_forgejo_instance="${var_forgejo_instance:-https://codeberg.org}"
 fi
 
 if [[ -z "${var_forgejo_runner_uuid:-}" ]]; then
-  read -r -p "${TAB3}Forgejo Runner UUID: " var_forgejo_runner_uuid
+  read -r -p "${TAB3}Forgejo Runner UUID: " var_forgejo_runner_uuid || true
 fi
 
 if [[ -z "${var_forgejo_runner_uuid:-}" ]]; then
@@ -29,7 +29,7 @@ if [[ -z "${var_forgejo_runner_uuid:-}" ]]; then
 fi
 
 if [[ -z "${var_forgejo_runner_token:-}" ]]; then
-  read -r -p "${TAB3}Forgejo Runner Token: " var_forgejo_runner_token
+  read -r -p "${TAB3}Forgejo Runner Token: " var_forgejo_runner_token || true
 fi
 
 if [[ -z "${var_forgejo_runner_token:-}" ]]; then
@@ -39,7 +39,7 @@ fi
 
 DEFAULT_RUNNER_LABELS="linux-amd64:docker://node:22-bookworm"
 if [[ -z "${var_runner_labels:-}" ]]; then
-  read -r -p "${TAB3}Additional runner labels (comma-separated, or leave blank for default only): " var_runner_labels
+  read -r -p "${TAB3}Additional runner labels (comma-separated, or leave blank for default only): " var_runner_labels || true
 fi
 if [[ -n "${var_runner_labels:-}" ]]; then
   RUNNER_LABELS="${DEFAULT_RUNNER_LABELS},${var_runner_labels}"
diff --git a/install/ghostfolio-install.sh b/install/ghostfolio-install.sh
index 4595b07ee..6956f1265 100644
--- a/install/ghostfolio-install.sh
+++ b/install/ghostfolio-install.sh
@@ -51,8 +51,10 @@ echo -e ""
 msg_custom "🪙" "$YW" "CoinGecko API keys are optional but provide better cryptocurrency data."
 msg_custom "🪙" "$YW" "You can skip this and add them later by editing /opt/ghostfolio/.env"
 echo -e ""
-read -rp "${TAB3}CoinGecko Demo API key (press Enter to skip): " COINGECKO_DEMO_KEY
-read -rp "${TAB3}CoinGecko Pro API key (press Enter to skip): " COINGECKO_PRO_KEY
+COINGECKO_DEMO_KEY="${var_ghostfolio_coingecko_demo_key:-}"
+[[ -n "$COINGECKO_DEMO_KEY" ]] || read -rp "${TAB3}CoinGecko Demo API key (press Enter to skip): " COINGECKO_DEMO_KEY || true
+COINGECKO_PRO_KEY="${var_ghostfolio_coingecko_pro_key:-}"
+[[ -n "$COINGECKO_PRO_KEY" ]] || read -rp "${TAB3}CoinGecko Pro API key (press Enter to skip): " COINGECKO_PRO_KEY || true
 
 msg_info "Setting up Environment"
 cat <<EOF >/opt/ghostfolio/.env
diff --git a/install/headscale-install.sh b/install/headscale-install.sh
index 66b6d1329..67a25d188 100644
--- a/install/headscale-install.sh
+++ b/install/headscale-install.sh
@@ -16,7 +16,7 @@ update_os
 fetch_and_deploy_gh_release "headscale" "juanfont/headscale" "binary"
 
 prompt="${var_headscale_admin:-}"
-[[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to add headscale-admin UI? <y/N> " prompt
+[[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to add headscale-admin UI? <y/N> " prompt || true
 if [[ ${prompt,,} =~ ^(y|yes)$ ]]; then
   fetch_and_deploy_gh_release "headscale-admin" "GoodiesHQ/headscale-admin" "prebuild" "latest" "/opt/headscale-admin" "admin.zip"
 
diff --git a/install/influxdb-install.sh b/install/influxdb-install.sh
index f3e223e26..413b3f98a 100644
--- a/install/influxdb-install.sh
+++ b/install/influxdb-install.sh
@@ -21,7 +21,8 @@ setup_deb822_repo \
   "stable"
 msg_ok "Set up InfluxDB Repository"
 
-read -r -p "${TAB3}Which version of InfluxDB to install? (1, 2 or 3) " prompt
+prompt="${var_influxdb_version:-}"
+[[ -n "$prompt" ]] || read -r -p "${TAB3}Which version of InfluxDB to install? (1, 2 or 3) " prompt || true
 if [[ $prompt == "3" ]]; then
   INFLUX="3"
 elif [[ $prompt == "2" ]]; then
@@ -51,7 +52,7 @@ fi
 msg_ok "Installed InfluxDB"
 
 prompt="${var_influxdb_telegraf:-}"
-[[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to add Telegraf? <y/N> " prompt
+[[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to add Telegraf? <y/N> " prompt || true
 if [[ "${prompt,,}" =~ ^(y|yes)$ ]]; then
   msg_info "Installing Telegraf"
   $STD apt install -y telegraf
diff --git a/install/kometa-install.sh b/install/kometa-install.sh
index 0b2e90578..15c269ee7 100644
--- a/install/kometa-install.sh
+++ b/install/kometa-install.sh
@@ -28,9 +28,15 @@ mkdir -p config/assets
 cp config/config.yml.template config/config.yml
 msg_ok "Setup Kometa"
 
-read -r -p "${TAB3}Enter your TMDb API key: " TMDBKEY
-read -r -p "${TAB3}Enter your Plex URL: " PLEXURL
-read -r -p "${TAB3}Enter your Plex token: " PLEXTOKEN
+TMDBKEY="${var_kometa_tmdb_key:-}"
+[[ -n "$TMDBKEY" ]] || read -r -p "${TAB3}Enter your TMDb API key: " TMDBKEY || true
+[[ -n "$TMDBKEY" ]] || { msg_error "No TMDb API key given; set var_kometa_tmdb_key or answer the prompt"; exit 64; }
+PLEXURL="${var_kometa_plex_url:-}"
+[[ -n "$PLEXURL" ]] || read -r -p "${TAB3}Enter your Plex URL: " PLEXURL || true
+[[ -n "$PLEXURL" ]] || { msg_error "No Plex URL given; set var_kometa_plex_url or answer the prompt"; exit 64; }
+PLEXTOKEN="${var_kometa_plex_token:-}"
+[[ -n "$PLEXTOKEN" ]] || read -r -p "${TAB3}Enter your Plex token: " PLEXTOKEN || true
+[[ -n "$PLEXTOKEN" ]] || { msg_error "No Plex token given; set var_kometa_plex_token or answer the prompt"; exit 64; }
 sed -i '/^plex:/,/^[^ ]/{s|  url:.*|  url: '"$PLEXURL"'|}' /opt/kometa/config/config.yml
 sed -i '/^plex:/,/^[^ ]/{s|  token:.*|  token: '"$PLEXTOKEN"'|}' /opt/kometa/config/config.yml
 sed -i '/^tmdb:/,/^[^ ]/{s|  apikey:.*|  apikey: '"$TMDBKEY"'|}' /opt/kometa/config/config.yml
diff --git a/install/kutt-install.sh b/install/kutt-install.sh
index 05526ec98..88dac043e 100644
--- a/install/kutt-install.sh
+++ b/install/kutt-install.sh
@@ -15,7 +15,8 @@ update_os
 
 echo "${TAB3}How would you like to handle SSL termination?"
 echo "${TAB3}[i]-Internal (self-signed SSL Certificate)   [e]-External (use your own reverse proxy)"
-read -rp "${TAB3}Enter your choice <i/e> (default: i): " ssl_choice
+ssl_choice="${var_kutt_ssl:-}"
+[[ -n "$ssl_choice" ]] || read -rp "${TAB3}Enter your choice <i/e> (default: i): " ssl_choice || true
 ssl_choice=${ssl_choice:-i}
 case "${ssl_choice,,}" in
 i)
@@ -32,7 +33,9 @@ EOF
   msg_ok "Configured Caddy"
   ;;
 e)
-  read -r -p "${TAB3}Enter the hostname you want to use for Kutt (eg. kutt.example.com): " custom_host
+  custom_host="${var_kutt_hostname:-}"
+  [[ -n "$custom_host" ]] || read -r -p "${TAB3}Enter the hostname you want to use for Kutt (eg. kutt.example.com): " custom_host || true
+  [[ -n "$custom_host" ]] || { msg_error "No hostname given; set var_kutt_hostname or answer the prompt"; exit 64; }
   if [[ "$custom_host" ]]; then
     DEFAULT_HOST="$custom_host"
   fi
diff --git a/install/languagetool-install.sh b/install/languagetool-install.sh
index 224bd1515..b545a6f68 100644
--- a/install/languagetool-install.sh
+++ b/install/languagetool-install.sh
@@ -29,12 +29,12 @@ rm -f /tmp/LanguageTool-stable.zip
 msg_ok "Setup LanguageTool"
 
 ngram_dir=""
-lang_code=""
+lang_code="${var_languagetool_ngram_lang:-}"
 max_attempts=3
 attempt=0
 
 while [[ $attempt -lt $max_attempts ]]; do
-  read -r -p "${TAB3}Enter language code (en, de, es, fr, nl) to download ngrams or press ENTER to skip: " lang_code
+  [[ -n "$lang_code" ]] || read -r -p "${TAB3}Enter language code (en, de, es, fr, nl) to download ngrams or press ENTER to skip: " lang_code || lang_code=""
 
   if [[ -z "$lang_code" ]]; then
     break
@@ -43,11 +43,11 @@ while [[ $attempt -lt $max_attempts ]]; do
   if [[ "$lang_code" =~ [[:space:]] ]]; then
     ((attempt++))
     remaining=$((max_attempts - attempt))
+    lang_code=""
     if [[ $remaining -gt 0 ]]; then
       msg_error "Please enter only ONE language code. You have $remaining attempt(s) remaining."
     else
       msg_error "Maximum attempts reached. Continuing without ngrams."
-      lang_code=""
     fi
     continue
   fi
diff --git a/install/linkwarden-install.sh b/install/linkwarden-install.sh
index 6350938fb..5ed5aa57f 100644
--- a/install/linkwarden-install.sh
+++ b/install/linkwarden-install.sh
@@ -25,7 +25,7 @@ RUST_CRATES="monolith" setup_rust
 PG_DB_NAME="linkwardendb" PG_DB_USER="linkwarden" setup_postgresql_db
 
 prompt="${var_linkwarden_adminer:-}"
-[[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to add Adminer? <y/N> " prompt
+[[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to add Adminer? <y/N> " prompt || true
 if [[ "${prompt,,}" =~ ^(y|yes)$ ]]; then
   setup_adminer
 fi
diff --git a/install/mariadb-install.sh b/install/mariadb-install.sh
index a9d0a3025..f773c290a 100644
--- a/install/mariadb-install.sh
+++ b/install/mariadb-install.sh
@@ -22,7 +22,7 @@ setup_deb_based() {
   msg_ok "Setup MariaDB"
 
   prompt="${var_mariadb_phpmyadmin:-}"
-  [[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to add PhpMyAdmin? <y/N> " prompt
+  [[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to add PhpMyAdmin? <y/N> " prompt || true
   if [[ ${prompt,,} =~ ^(y|yes)$ ]]; then
     msg_info "Installing phpMyAdmin"
     $STD apt install -y \
@@ -60,7 +60,7 @@ setup_alpine() {
   msg_ok "MariaDB Configured"
 
   prompt="${var_mariadb_adminer:-}"
-  [[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to install Adminer with lighttpd? <y/N>: " prompt
+  [[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to install Adminer with lighttpd? <y/N>: " prompt || true
   if [[ ${prompt,,} =~ ^(y|yes)$ ]]; then
     msg_info "Installing Adminer and dependencies"
     $STD apk add --no-cache \
diff --git a/install/mediamanager-install.sh b/install/mediamanager-install.sh
index 3419ac30e..e234e2941 100644
--- a/install/mediamanager-install.sh
+++ b/install/mediamanager-install.sh
@@ -13,7 +13,9 @@ setting_up_container
 network_check
 update_os
 
-read -r -p "${TAB3}Enter the email address of your first admin user: " admin_email
+admin_email="${var_mediamanager_admin_email:-}"
+[[ -n "$admin_email" ]] || read -r -p "${TAB3}Enter the email address of your first admin user: " admin_email || true
+[[ -n "$admin_email" ]] || { msg_error "No admin e-mail given; set var_mediamanager_admin_email or answer the prompt"; exit 64; }
 if [[ "$admin_email" ]]; then
   EMAIL="$admin_email"
 fi
diff --git a/install/meilisearch-install.sh b/install/meilisearch-install.sh
index 6fe7fff77..9c084f623 100644
--- a/install/meilisearch-install.sh
+++ b/install/meilisearch-install.sh
@@ -16,7 +16,7 @@ update_os
 MEILISEARCH_BIND="0.0.0.0:7700" setup_meilisearch
 
 prompt="${var_meilisearch_ui:-}"
-[[ -n "$prompt" ]] || read -r -p "${TAB3}Do you want add meilisearch-ui? [y/n]: " prompt
+[[ -n "$prompt" ]] || read -r -p "${TAB3}Do you want add meilisearch-ui? [y/n]: " prompt || true
 if [[ ${prompt,,} =~ ^(y|yes)$ ]]; then
   NODE_VERSION="22" NODE_MODULE="pnpm@latest" setup_nodejs
   fetch_and_deploy_gh_release "meilisearch-ui" "riccox/meilisearch-ui" "tarball"
diff --git a/install/mongodb-install.sh b/install/mongodb-install.sh
index 4c9d34f03..fcc221253 100644
--- a/install/mongodb-install.sh
+++ b/install/mongodb-install.sh
@@ -16,7 +16,8 @@ update_os
 if [[ "$(arch_resolve)" == "arm64" ]]; then
   MONGO_VERSION="8.0" setup_mongodb
 else
-  read -p "${TAB3}Do you want to install MongoDB 8.0 instead of 7.0? [y/N]: " install_mongodb_8
+  install_mongodb_8="${var_mongodb_8:-}"
+  [[ -n "$install_mongodb_8" ]] || read -r -p "${TAB3}Do you want to install MongoDB 8.0 instead of 7.0? [y/N]: " install_mongodb_8 || true
   if [[ "$install_mongodb_8" =~ ^[Yy]$ ]]; then
     MONGO_VERSION="8.0" setup_mongodb
   else
diff --git a/install/mysql-install.sh b/install/mysql-install.sh
index 06476fef6..ae417df22 100644
--- a/install/mysql-install.sh
+++ b/install/mysql-install.sh
@@ -21,7 +21,8 @@ msg_ok "Installed Dependencies"
 
 RELEASE_REPO="mysql-8.0"
 RELEASE_AUTH="mysql_native_password"
-read -r -p "${TAB3}Would you like to install the MySQL 8.4 LTS release instead of MySQL 8.0 (bug fix track; EOL April-2026)? <y/N> " prompt
+prompt="${var_mysql_lts:-}"
+[[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to install the MySQL 8.4 LTS release instead of MySQL 8.0 (bug fix track; EOL April-2026)? <y/N> " prompt || true
 if [[ "${prompt,,}" =~ ^(y|yes)$ ]]; then
   RELEASE_REPO="mysql-8.4-lts"
   RELEASE_AUTH="caching_sha2_password"
@@ -61,7 +62,8 @@ echo -e "MySQL user: root" >>~/mysql.creds
 echo -e "MySQL password: $ADMIN_PASS" >>~/mysql.creds
 msg_ok "MySQL Server configured"
 
-read -r -p "${TAB3}Would you like to add PhpMyAdmin? <y/N> " prompt
+prompt="${var_mysql_phpmyadmin:-}"
+[[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to add PhpMyAdmin? <y/N> " prompt || true
 if [[ ${prompt,,} =~ ^(y|yes)$ ]]; then
   bash -c "$(curl -fsSL https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main/tools/addon/phpmyadmin.sh)"
 fi
diff --git a/install/netbird-install.sh b/install/netbird-install.sh
index b296adf29..5a960bcd0 100644
--- a/install/netbird-install.sh
+++ b/install/netbird-install.sh
@@ -36,7 +36,8 @@ echo " 1) NetBird Managed (default) - Use NetBird's managed service"
 echo " 2) Self-Hosted - Use your own NetBird management server"
 echo ""
 
-read -r -p "${TAB3}Select deployment type [1]: " DEPLOYMENT_TYPE
+DEPLOYMENT_TYPE="${var_netbird_deployment:-}"
+[[ -n "$DEPLOYMENT_TYPE" ]] || read -r -p "${TAB3}Select deployment type [1]: " DEPLOYMENT_TYPE || true
 DEPLOYMENT_TYPE="${DEPLOYMENT_TYPE:-1}"
 
 NETBIRD_MGMT_URL=""
@@ -51,7 +52,8 @@ case "$DEPLOYMENT_TYPE" in
     echo "Enter your NetBird management server URL."
     echo "Example: https://management.example.com"
     echo ""
-    read -r -p "Management URL: " NETBIRD_MGMT_URL
+    NETBIRD_MGMT_URL="${var_netbird_mgmt_url:-}"
+    [[ -n "$NETBIRD_MGMT_URL" ]] || read -r -p "Management URL: " NETBIRD_MGMT_URL || true
 
     if [[ -z "$NETBIRD_MGMT_URL" ]]; then
       msg_warn "No management URL provided. Run 'netbird up --management-url <url>' to connect."
@@ -81,7 +83,8 @@ else
 fi
 echo ""
 
-read -r -p "Select authentication method [1]: " AUTH_METHOD
+AUTH_METHOD="${var_netbird_auth:-}"
+[[ -n "$AUTH_METHOD" ]] || read -r -p "Select authentication method [1]: " AUTH_METHOD || true
 AUTH_METHOD="${AUTH_METHOD:-1}"
 
 if [[ "$DEPLOYMENT_TYPE" == "1" ]]; then
@@ -90,7 +93,8 @@ if [[ "$DEPLOYMENT_TYPE" == "1" ]]; then
       echo ""
       echo "Enter your NetBird setup key from the NetBird dashboard."
       echo ""
-      read -r -p "Setup key: " NETBIRD_SETUP_KEY
+      NETBIRD_SETUP_KEY="${var_netbird_setup_key:-}"
+      [[ -n "$NETBIRD_SETUP_KEY" ]] || read -r -p "Setup key: " NETBIRD_SETUP_KEY || true
       echo ""
 
       if [[ -z "$NETBIRD_SETUP_KEY" ]]; then
@@ -136,7 +140,8 @@ else
       echo ""
       echo "Enter your NetBird setup key from the NetBird dashboard."
       echo ""
-      read -r -p "Setup key: " NETBIRD_SETUP_KEY
+      NETBIRD_SETUP_KEY="${var_netbird_setup_key:-}"
+      [[ -n "$NETBIRD_SETUP_KEY" ]] || read -r -p "Setup key: " NETBIRD_SETUP_KEY || true
       echo ""
 
       if [[ -z "$NETBIRD_SETUP_KEY" ]]; then
diff --git a/install/newt-install.sh b/install/newt-install.sh
index 39fed2067..4374dafcb 100644
--- a/install/newt-install.sh
+++ b/install/newt-install.sh
@@ -16,16 +16,15 @@ update_os
 fetch_and_deploy_gh_release "newt" "fosrl/newt" "singlefile" "latest" "/opt/newt" "newt_linux_$(arch_resolve)"
 ln -sf /opt/newt/newt /usr/local/bin/newt
 
-if [[ -z "${NEWT_ID:-}" ]]; then
-  read -rp "Newt ID (from your Pangolin dashboard): " NEWT_ID
-fi
-if [[ -z "${NEWT_SECRET:-}" ]]; then
-  read -rsp "Newt Secret: " NEWT_SECRET
+NEWT_ID="${NEWT_ID:-${var_newt_id:-}}"
+[[ -n "$NEWT_ID" ]] || read -rp "Newt ID (from your Pangolin dashboard): " NEWT_ID || true
+NEWT_SECRET="${NEWT_SECRET:-${var_newt_secret:-}}"
+if [[ -z "$NEWT_SECRET" ]]; then
+  read -rsp "Newt Secret: " NEWT_SECRET || true
   echo
 fi
-if [[ -z "${PANGOLIN_ENDPOINT:-}" ]]; then
-  read -rp "Pangolin endpoint (e.g. https://pangolin.example.com): " PANGOLIN_ENDPOINT
-fi
+PANGOLIN_ENDPOINT="${PANGOLIN_ENDPOINT:-${var_newt_endpoint:-}}"
+[[ -n "$PANGOLIN_ENDPOINT" ]] || read -rp "Pangolin endpoint (e.g. https://pangolin.example.com): " PANGOLIN_ENDPOINT || true
 
 if [[ -z "$NEWT_ID" || -z "$NEWT_SECRET" || -z "$PANGOLIN_ENDPOINT" ]]; then
   msg_error "Newt ID, Secret and Endpoint are all required. Aborting."
diff --git a/install/npmplus-install.sh b/install/npmplus-install.sh
index dbaabf863..9b2cefa10 100644
--- a/install/npmplus-install.sh
+++ b/install/npmplus-install.sh
@@ -38,12 +38,14 @@ curl -fsSL "https://raw.githubusercontent.com/ZoeyVid/NPMplus/refs/heads/develop
 msg_ok "Fetched NPMplus"
 
 attempts=0
+TZ_INPUT="${var_npmplus_tz:-}"
 while true; do
-  read -r -p "${TAB3}Enter your TZ Identifier (e.g., Europe/Berlin): " TZ_INPUT
+  [[ -n "$TZ_INPUT" ]] || read -r -p "${TAB3}Enter your TZ Identifier (e.g., Europe/Berlin): " TZ_INPUT || { msg_error "No TZ identifier given; set var_npmplus_tz or answer the prompt"; exit 64; }
   if validate_tz "$TZ_INPUT"; then
     break
   fi
   msg_error "Invalid timezone! Please enter a valid TZ identifier."
+  TZ_INPUT=""
 
   attempts=$((attempts + 1))
   if [[ "$attempts" -ge 3 ]]; then
@@ -52,7 +54,9 @@ while true; do
   fi
 done
 
-read -r -p "${TAB3}Enter your ACME Email: " ACME_EMAIL_INPUT
+ACME_EMAIL_INPUT="${var_npmplus_acme_email:-}"
+[[ -n "$ACME_EMAIL_INPUT" ]] || read -r -p "${TAB3}Enter your ACME Email: " ACME_EMAIL_INPUT || true
+[[ -n "$ACME_EMAIL_INPUT" ]] || { msg_error "No ACME e-mail given; set var_npmplus_acme_email or answer the prompt"; exit 64; }
 
 yq -i "
   .services.npmplus.environment |=
diff --git a/install/opencloud-install.sh b/install/opencloud-install.sh
index 98b910d06..bd721c9a5 100644
--- a/install/opencloud-install.sh
+++ b/install/opencloud-install.sh
@@ -17,19 +17,23 @@ MAX_ATTEMPTS=3
 servers=("opencloud" "collabora" "wopi")
 attempt=0
 for server in "${servers[@]}"; do
+  fqdn_var="var_opencloud_${server}_fqdn"
+  fqdn="${!fqdn_var:-}"
   until ((attempt >= MAX_ATTEMPTS)); do
     attempt=$((attempt + 1))
-    read -rp "${TAB3}Enter the FQDN of your ${server^} server (ATTEMPT $attempt/$MAX_ATTEMPTS) (eg $server.domain.tld): " fqdn
+    [[ -n "$fqdn" ]] || read -rp "${TAB3}Enter the FQDN of your ${server^} server (ATTEMPT $attempt/$MAX_ATTEMPTS) (eg $server.domain.tld): " fqdn || { msg_error "No ${server^} FQDN given; set ${fqdn_var} or answer the prompt"; exit 64; }
     if [[ -z "$fqdn" ]]; then
       msg_warn "Domain cannot be empty!"
     elif [[ "$fqdn" =~ ^([0-9]{1,3}\.){3}[0-9]{1,3}$ ]]; then
       msg_warn "IP address not allowed! Please use a FQDN"
+      fqdn=""
     elif [[ "$fqdn" =~ ^[a-zA-Z0-9]([a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(\.[a-zA-Z0-9]([a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*\.[a-zA-Z]{2,}$ ]]; then
       export ${server^^}_FQDN="$fqdn"
       attempt=0
       break
     else
       msg_warn "Invalid domain format!"
+      fqdn=""
     fi
   done
   if ((attempt >= MAX_ATTEMPTS)); then
diff --git a/install/openwebui-install.sh b/install/openwebui-install.sh
index 644ab15a0..6013da9c5 100644
--- a/install/openwebui-install.sh
+++ b/install/openwebui-install.sh
@@ -27,7 +27,7 @@ PYTHON_VERSION="3.12" setup_uv
 
 OTEL_ARGS=()
 prompt="${var_openwebui_otel:-}"
-[[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to install OpenTelemetry instrumentation packages (requires manual .env configuration)? <y/N> " prompt
+[[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to install OpenTelemetry instrumentation packages (requires manual .env configuration)? <y/N> " prompt || true
 if [[ ${prompt,,} =~ ^(y|yes)$ ]]; then
   for pkg in \
     opentelemetry-api \
@@ -57,7 +57,7 @@ done
 msg_ok "Installed Open WebUI"
 
 prompt="${var_openwebui_ollama:-}"
-[[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to add Ollama? <y/N> " prompt
+[[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to add Ollama? <y/N> " prompt || true
 if [[ ${prompt,,} =~ ^(y|yes)$ ]]; then
   if [[ "$(arch_resolve)" == "amd64" ]]; then
   msg_info "Setting up Intel® Repositories"
diff --git a/install/openziti-controller-install.sh b/install/openziti-controller-install.sh
index 9af0bf877..ca6836adb 100644
--- a/install/openziti-controller-install.sh
+++ b/install/openziti-controller-install.sh
@@ -27,17 +27,22 @@ apt_update_safe
 $STD apt install -y openziti-controller openziti-console </dev/null
 msg_ok "Installed openziti"
 
-read -r -p "${TAB3}Would you like to go through the auto configuration now? <y/N>" prompt
+prompt="${var_openziti_controller_autoconfig:-}"
+[[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to go through the auto configuration now? <y/N>" prompt || true
 if [[ ${prompt,,} =~ ^(y|yes)$ ]]; then
   GEN_FQDN="controller.${LOCAL_IP}.sslip.io"
-  read -r -p "${TAB3}Please enter the controller FQDN [${GEN_FQDN}]: " ZITI_CTRL_ADVERTISED_ADDRESS
+  ZITI_CTRL_ADVERTISED_ADDRESS="${var_openziti_controller_fqdn:-}"
+  [[ -n "$ZITI_CTRL_ADVERTISED_ADDRESS" ]] || read -r -p "${TAB3}Please enter the controller FQDN [${GEN_FQDN}]: " ZITI_CTRL_ADVERTISED_ADDRESS || true
   ZITI_CTRL_ADVERTISED_ADDRESS=${ZITI_CTRL_ADVERTISED_ADDRESS:-$GEN_FQDN}
-  read -r -p "${TAB3}Please enter the controller port [1280]: " ZITI_CTRL_ADVERTISED_PORT
+  ZITI_CTRL_ADVERTISED_PORT="${var_openziti_controller_port:-}"
+  [[ -n "$ZITI_CTRL_ADVERTISED_PORT" ]] || read -r -p "${TAB3}Please enter the controller port [1280]: " ZITI_CTRL_ADVERTISED_PORT || true
   ZITI_CTRL_ADVERTISED_PORT=${ZITI_CTRL_ADVERTISED_PORT:-1280}
-  read -r -p "${TAB3}Please enter the controller admin user [admin]: " ZITI_USER
+  ZITI_USER="${var_openziti_controller_user:-}"
+  [[ -n "$ZITI_USER" ]] || read -r -p "${TAB3}Please enter the controller admin user [admin]: " ZITI_USER || true
   ZITI_USER=${ZITI_USER:-admin}
   GEN_PWD=$(head -c128 /dev/urandom | LC_ALL=C tr -dc 'A-Za-z0-9!@#$%^*_+~' | cut -c 1-12)
-  read -r -p "${TAB3}Please enter the controller admin password [${GEN_PWD}]:" ZITI_PWD
+  ZITI_PWD="${var_openziti_controller_password:-}"
+  [[ -n "$ZITI_PWD" ]] || read -r -p "${TAB3}Please enter the controller admin password [${GEN_PWD}]:" ZITI_PWD || true
   ZITI_PWD=${ZITI_PWD:-$GEN_PWD}
   CONFIG_FILE="/opt/openziti/etc/controller/bootstrap.env"
   sed -i "s|^ZITI_CTRL_ADVERTISED_ADDRESS=.*|ZITI_CTRL_ADVERTISED_ADDRESS='${ZITI_CTRL_ADVERTISED_ADDRESS}'|" "$CONFIG_FILE"
diff --git a/install/openziti-tunnel-install.sh b/install/openziti-tunnel-install.sh
index 21074022d..aa46ca253 100644
--- a/install/openziti-tunnel-install.sh
+++ b/install/openziti-tunnel-install.sh
@@ -29,7 +29,8 @@ sed -i '0,/^ExecStart/ { /^ExecStart/ { n; s|^ExecStart.*|ExecStart=/opt/openzit
 systemctl daemon-reload
 msg_ok "Installed openziti"
 
-read -r -p "${TAB3}Please paste an identity enrollment token(JTW)" prompt
+prompt="${var_openziti_tunnel_enrollment_token:-}"
+[[ -n "$prompt" ]] || read -r -p "${TAB3}Please paste an identity enrollment token(JTW)" prompt || true
 if [[ ${prompt} ]]; then
   msg_info "Adding identity"
   echo "${prompt}" >/opt/openziti/etc/identities/identity.jwt
diff --git a/install/pangolin-install.sh b/install/pangolin-install.sh
index 68238b033..f66cc4df1 100644
--- a/install/pangolin-install.sh
+++ b/install/pangolin-install.sh
@@ -27,15 +27,13 @@ fetch_and_deploy_gh_release "gerbil" "fosrl/gerbil" "singlefile" "latest" "/usr/
 fetch_and_deploy_gh_release "traefik" "traefik/traefik" "prebuild" "latest" "/usr/bin" "traefik_v*_linux_$(arch_resolve).tar.gz"
 
 pango_url="${var_pangolin_url:-}"
-if [[ -z "$pango_url" ]]; then
-  read -rp "${TAB3}Enter your Pangolin URL (ex: https://pangolin.example.com): " pango_url
-fi
+[[ -n "$pango_url" ]] || read -rp "${TAB3}Enter your Pangolin URL (ex: https://pangolin.example.com): " pango_url || true
+[[ -n "$pango_url" ]] || { msg_error "No Pangolin URL given; set var_pangolin_url or answer the prompt"; exit 64; }
 [[ "$pango_url" != https://* && "$pango_url" != http://* ]] && pango_url="https://${pango_url}"
 
 pango_email="${var_pangolin_email:-}"
-if [[ -z "$pango_email" ]]; then
-  read -rp "${TAB3}Enter your email address: " pango_email
-fi
+[[ -n "$pango_email" ]] || read -rp "${TAB3}Enter your email address: " pango_email || true
+[[ -n "$pango_email" ]] || { msg_error "No email address given; set var_pangolin_email or answer the prompt"; exit 64; }
 
 msg_info "Setup Pangolin"
 SECRET_KEY=$(random_password 32)
diff --git a/install/paperless-gpt-install.sh b/install/paperless-gpt-install.sh
index 47228b4ef..239a5579a 100644
--- a/install/paperless-gpt-install.sh
+++ b/install/paperless-gpt-install.sh
@@ -38,16 +38,22 @@ CGO_ENABLED=1 go build -tags musl -o paperless-gpt .
 msg_ok "Setup Paperless-GPT"
 
 mkdir -p /opt/paperless-gpt-data
-read -rp "${TAB3}Do you want to enter the Paperless local URL now? (y/n) " input_url
+input_url="${var_paperless_gpt_enter_url:-}"
+[[ -n "$input_url" ]] || read -rp "${TAB3}Do you want to enter the Paperless local URL now? (y/n) " input_url || true
 if [[ $input_url =~ ^[Yy]$ ]]; then
-  read -rp "${TAB3}Enter your Paperless-NGX instance URL (e.g., http://192.168.1.100:8000): " PAPERLESS_BASE_URL
+  PAPERLESS_BASE_URL="${var_paperless_gpt_url:-}"
+  [[ -n "$PAPERLESS_BASE_URL" ]] || read -rp "${TAB3}Enter your Paperless-NGX instance URL (e.g., http://192.168.1.100:8000): " PAPERLESS_BASE_URL || true
+  [[ -n "$PAPERLESS_BASE_URL" ]] || { msg_error "No Paperless-NGX URL given; set var_paperless_gpt_url or answer the prompt"; exit 64; }
 else
   PAPERLESS_BASE_URL="http://your_paperless_ngx_url"
 fi
 
-read -rp "${TAB3}Do you want to enter the Paperless API token now? (y/n) " input_token
+input_token="${var_paperless_gpt_enter_token:-}"
+[[ -n "$input_token" ]] || read -rp "${TAB3}Do you want to enter the Paperless API token now? (y/n) " input_token || true
 if [[ $input_token =~ ^[Yy]$ ]]; then
-  read -rp "${TAB3}Enter your Paperless API token: " PAPERLESS_API_TOKEN
+  PAPERLESS_API_TOKEN="${var_paperless_gpt_api_token:-}"
+  [[ -n "$PAPERLESS_API_TOKEN" ]] || read -rp "${TAB3}Enter your Paperless API token: " PAPERLESS_API_TOKEN || true
+  [[ -n "$PAPERLESS_API_TOKEN" ]] || { msg_error "No Paperless API token given; set var_paperless_gpt_api_token or answer the prompt"; exit 64; }
 else
   PAPERLESS_API_TOKEN="your_paperless_api_token"
 fi
diff --git a/install/paperless-ngx-install.sh b/install/paperless-ngx-install.sh
index 812313608..d680dc531 100644
--- a/install/paperless-ngx-install.sh
+++ b/install/paperless-ngx-install.sh
@@ -172,7 +172,7 @@ systemctl enable -q --now paperless-webserver paperless-scheduler paperless-task
 msg_ok "Created Services"
 
 prompt="${var_paperless_ngx_adminer:-}"
-[[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to add Adminer? <y/N> " prompt
+[[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to add Adminer? <y/N> " prompt || true
 if [[ "${prompt,,}" =~ ^(y|yes)$ ]]; then
   setup_adminer
 fi
diff --git a/install/pihole-install.sh b/install/pihole-install.sh
index fdc882bc8..29d31dc17 100644
--- a/install/pihole-install.sh
+++ b/install/pihole-install.sh
@@ -57,10 +57,10 @@ systemctl restart pihole-FTL.service
 msg_ok "Installed Pi-hole"
 
 prompt="${var_pihole_unbound:-}"
-[[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to add Unbound? <y/N> " prompt
+[[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to add Unbound? <y/N> " prompt || true
 if [[ ${prompt,,} =~ ^(y|yes)$ ]]; then
   prompt="${var_pihole_unbound_dot:-}"
-  [[ -n "$prompt" ]] || read -r -p "${TAB3}Unbound is configured as a recursive DNS server by default, would you like it to be configured as a forwarding DNS server (using DNS-over-TLS (DoT)) instead? <y/N> " prompt
+  [[ -n "$prompt" ]] || read -r -p "${TAB3}Unbound is configured as a recursive DNS server by default, would you like it to be configured as a forwarding DNS server (using DNS-over-TLS (DoT)) instead? <y/N> " prompt || true
   msg_info "Installing Unbound"
   mkdir -p /etc/unbound/unbound.conf.d
   cat <<EOF >/etc/unbound/unbound.conf.d/pi-hole.conf
diff --git a/install/pocketid-install.sh b/install/pocketid-install.sh
index 11b8fa591..58ca6afeb 100644
--- a/install/pocketid-install.sh
+++ b/install/pocketid-install.sh
@@ -13,7 +13,9 @@ setting_up_container
 network_check
 update_os
 
-read -r -p "${TAB3}What public URL do you want to use (e.g. pocketid.mydomain.com)? " public_url
+public_url="${var_pocketid_url:-}"
+[[ -n "$public_url" ]] || read -r -p "${TAB3}What public URL do you want to use (e.g. pocketid.mydomain.com)? " public_url || true
+[[ -n "$public_url" ]] || { msg_error "No public URL given; set var_pocketid_url or answer the prompt"; exit 64; }
 fetch_and_deploy_gh_release "pocket-id" "pocket-id/pocket-id" "singlefile" "latest" "/opt/pocket-id/" "pocket-id_linux_$(arch_resolve)"
 
 msg_info "Configuring Pocket ID"
diff --git a/install/podman-homeassistant-install.sh b/install/podman-homeassistant-install.sh
index 368633b4e..4edde9074 100644
--- a/install/podman-homeassistant-install.sh
+++ b/install/podman-homeassistant-install.sh
@@ -54,7 +54,7 @@ msg_ok "Installed Podman"
 mkdir -p /etc/containers/systemd
 
 prompt="${var_podman_homeassistant_portainer:-}"
-[[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to add Portainer? <y/N> " prompt
+[[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to add Portainer? <y/N> " prompt || true
 if [[ ${prompt,,} =~ ^(y|yes)$ ]]; then
   msg_info "Installing Portainer $PORTAINER_LATEST_VERSION"
   podman volume create portainer_data >/dev/null
@@ -82,7 +82,7 @@ EOF
   msg_ok "Installed Portainer $PORTAINER_LATEST_VERSION"
 else
   prompt="${var_podman_homeassistant_portainer_agent:-}"
-  [[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to add the Portainer Agent? <y/N> " prompt
+  [[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to add the Portainer Agent? <y/N> " prompt || true
   if [[ ${prompt,,} =~ ^(y|yes)$ ]]; then
     msg_info "Installing Portainer agent $PORTAINER_AGENT_LATEST_VERSION"
     cat <<EOF >/etc/containers/systemd/portainer-agent.container
diff --git a/install/podman-install.sh b/install/podman-install.sh
index 0ecc33717..6661de3d1 100644
--- a/install/podman-install.sh
+++ b/install/podman-install.sh
@@ -49,7 +49,7 @@ msg_ok "Installed Podman"
 mkdir -p /etc/containers/systemd
 
 prompt="${var_podman_portainer:-}"
-[[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to add Portainer? <y/N> " prompt
+[[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to add Portainer? <y/N> " prompt || true
 if [[ ${prompt,,} =~ ^(y|yes)$ ]]; then
   msg_info "Installing Portainer $PORTAINER_LATEST_VERSION"
   podman volume create portainer_data >/dev/null
@@ -78,7 +78,7 @@ EOF
   msg_ok "Installed Portainer $PORTAINER_LATEST_VERSION"
 else
   prompt="${var_podman_portainer_agent:-}"
-  [[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to add the Portainer Agent? <y/N> " prompt
+  [[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to add the Portainer Agent? <y/N> " prompt || true
   if [[ ${prompt,,} =~ ^(y|yes)$ ]]; then
     msg_info "Installing Portainer agent $PORTAINER_AGENT_LATEST_VERSION"
     $STD podman pull docker.io/portainer/agent:latest
diff --git a/install/pterodactyl-panel-install.sh b/install/pterodactyl-panel-install.sh
index 71de60220..ec9233707 100644
--- a/install/pterodactyl-panel-install.sh
+++ b/install/pterodactyl-panel-install.sh
@@ -47,9 +47,15 @@ msg_ok "Installed PHP"
 
 MARIADB_DB_NAME="panel" MARIADB_DB_USER="pterodactyl" MARIADB_DB_CREDS_FILE="$HOME/pterodactyl-panel.creds" setup_mariadb_db
 
-read -p "${TAB3}Provide an email address for admin login, this should be a valid email address: " ADMIN_EMAIL
-read -p "${TAB3}Enter your First Name: " NAME_FIRST
-read -p "${TAB3}Enter your Last Name: " NAME_LAST
+ADMIN_EMAIL="${var_pterodactyl_panel_admin_email:-}"
+[[ -n "$ADMIN_EMAIL" ]] || read -r -p "${TAB3}Provide an email address for admin login, this should be a valid email address: " ADMIN_EMAIL || true
+[[ -n "$ADMIN_EMAIL" ]] || { msg_error "No admin email given; set var_pterodactyl_panel_admin_email or answer the prompt"; exit 64; }
+NAME_FIRST="${var_pterodactyl_panel_first_name:-}"
+[[ -n "$NAME_FIRST" ]] || read -r -p "${TAB3}Enter your First Name: " NAME_FIRST || true
+[[ -n "$NAME_FIRST" ]] || { msg_error "No first name given; set var_pterodactyl_panel_first_name or answer the prompt"; exit 64; }
+NAME_LAST="${var_pterodactyl_panel_last_name:-}"
+[[ -n "$NAME_LAST" ]] || read -r -p "${TAB3}Enter your Last Name: " NAME_LAST || true
+[[ -n "$NAME_LAST" ]] || { msg_error "No last name given; set var_pterodactyl_panel_last_name or answer the prompt"; exit 64; }
 
 fetch_and_deploy_gh_release "pterodactyl-panel" "pterodactyl/panel" "prebuild" "latest" "/opt/pterodactyl-panel" "panel.tar.gz"
 
diff --git a/install/rustdeskserver-install.sh b/install/rustdeskserver-install.sh
index cfcc3fb2f..9ff00d0a2 100644
--- a/install/rustdeskserver-install.sh
+++ b/install/rustdeskserver-install.sh
@@ -13,11 +13,8 @@ setting_up_container
 network_check
 update_os
 
-if [[ -n "${var_rustdesk_api:-}" ]]; then
-  prompt="$var_rustdesk_api"
-else
-  read -r -p "${TAB3}Would you like to add the RustDesk API web UI (lejianwen/rustdesk-api, unmaintained since 09/2025)? <y/N> " prompt
-fi
+prompt="${var_rustdesk_api:-}"
+[[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to add the RustDesk API web UI (lejianwen/rustdesk-api, unmaintained since 09/2025)? <y/N> " prompt || true
 INSTALL_API=0
 [[ "${prompt,,}" =~ ^(y|yes|true)$ ]] && INSTALL_API=1
 API_PASS="$(random_password 16)"
diff --git a/install/sabnzbd-install.sh b/install/sabnzbd-install.sh
index a1ad71161..6db27b035 100644
--- a/install/sabnzbd-install.sh
+++ b/install/sabnzbd-install.sh
@@ -41,7 +41,7 @@ $STD uv pip install -r /opt/sabnzbd/requirements.txt --python=/opt/sabnzbd/venv/
 msg_ok "Installed SABnzbd"
 
 prompt="${var_sabnzbd_par2_turbo:-}"
-[[ -n "$prompt" ]] || read -r -p "Would you like to install par2cmdline-turbo? <y/N> " prompt
+[[ -n "$prompt" ]] || read -r -p "Would you like to install par2cmdline-turbo? <y/N> " prompt || true
 if [[ "${prompt,,}" =~ ^(y|yes)$ ]]; then
   mv /usr/bin/par2 /usr/bin/par2.old
   fetch_and_deploy_gh_release "par2cmdline-turbo" "animetosho/par2cmdline-turbo" "prebuild" "latest" "/usr/bin/" "*-linux-$(arch_resolve).zip"
diff --git a/install/shelfmark-install.sh b/install/shelfmark-install.sh
index 8c5cfbf59..62eb428ca 100644
--- a/install/shelfmark-install.sh
+++ b/install/shelfmark-install.sh
@@ -47,7 +47,8 @@ echo " 3) Use an existing Flaresolverr/Byparr LXC"
 echo " 4) Disable captcha bypassing altogether (not recommended)"
 echo ""
 
-read -r -p "${TAB3}Select deployment type [1]: " DEPLOYMENT_TYPE
+DEPLOYMENT_TYPE="${var_shelfmark_deployment_type:-}"
+[[ -n "$DEPLOYMENT_TYPE" ]] || read -r -p "${TAB3}Select deployment type [1]: " DEPLOYMENT_TYPE || true
 DEPLOYMENT_TYPE="${DEPLOYMENT_TYPE:-1}"
 if [[ "$(arch_resolve)" == "arm64" && "$DEPLOYMENT_TYPE" == "2" ]]; then
   msg_warn "FlareSolverr has no arm64 build; using Shelfmark's internal bypasser instead"
@@ -69,7 +70,8 @@ case "$DEPLOYMENT_TYPE" in
   echo "Example: http://flaresoverr.homelab.lan:8191 or"
   echo "http://192.168.10.99:8191"
   echo ""
-  read -r -p "FlareSolverr/Byparr URL: " BYPASSER_URL
+  BYPASSER_URL="${var_shelfmark_bypasser_url:-}"
+  [[ -n "$BYPASSER_URL" ]] || read -r -p "FlareSolverr/Byparr URL: " BYPASSER_URL || true
 
   if [[ -z "$BYPASSER_URL" ]]; then
     msg_warn "No Flaresolverr/Byparr URL provided. Falling back to Shelfmark's internal bypasser."
diff --git a/install/silverbullet-install.sh b/install/silverbullet-install.sh
index ae04633d2..e4b5e2e55 100644
--- a/install/silverbullet-install.sh
+++ b/install/silverbullet-install.sh
@@ -18,7 +18,7 @@ mkdir -p /opt/silverbullet/space
 
 RUNTIME_API_ENV=""
 runtime_api_prompt="${var_silverbullet_runtime_api:-}"
-[[ -n "$runtime_api_prompt" ]] || read -rp "${TAB3}Enable Silverbullet Runtime API? Requires Chromium (~700MB). Uses ~200MB extra RAM. (y/N): " runtime_api_prompt
+[[ -n "$runtime_api_prompt" ]] || read -rp "${TAB3}Enable Silverbullet Runtime API? Requires Chromium (~700MB). Uses ~200MB extra RAM. (y/N): " runtime_api_prompt || true
 if [[ "${runtime_api_prompt,,}" =~ ^(y|yes)$ ]]; then
   msg_info "Installing Chromium for Runtime API"
   $STD apt install -y chromium
diff --git a/install/slskd-install.sh b/install/slskd-install.sh
index 45d63683f..574e7cdfa 100644
--- a/install/slskd-install.sh
+++ b/install/slskd-install.sh
@@ -37,7 +37,7 @@ sed -i \
 msg_ok "Configured Slskd"
 
 soularr="${var_slskd_soularr:-}"
-[[ -n "$soularr" ]] || read -rp "${TAB3}Do you want to install Soularr? y/N " soularr
+[[ -n "$soularr" ]] || read -rp "${TAB3}Do you want to install Soularr? y/N " soularr || true
 if [[ ${soularr,,} =~ ^(y|yes)$ ]]; then
   PYTHON_VERSION="3.11" setup_uv
   fetch_and_deploy_gh_release "Soularr" "mrusse/soularr" "tarball" "latest" "/opt/soularr"
diff --git a/install/sqlserver2022-install.sh b/install/sqlserver2022-install.sh
index 495622a9f..33454c806 100644
--- a/install/sqlserver2022-install.sh
+++ b/install/sqlserver2022-install.sh
@@ -46,7 +46,8 @@ echo 'export PATH="$PATH:/opt/mssql-tools18/bin"' >>~/.bash_profile
 source ~/.bash_profile
 msg_ok "Installed SQL Server Tools"
 
-read -r -p "${TAB3}Do you want to run the SQL server setup now? (Later is also possible) <y/N>" prompt
+prompt="${var_sqlserver2022_setup_now:-}"
+[[ -n "$prompt" ]] || read -r -p "${TAB3}Do you want to run the SQL server setup now? (Later is also possible) <y/N>" prompt || true
 if [[ "${prompt,,}" =~ ^(y|yes)$ ]]; then
   /opt/mssql/bin/mssql-conf setup
 else
diff --git a/install/sqlserver2025-install.sh b/install/sqlserver2025-install.sh
index 1b6040575..f1020372e 100644
--- a/install/sqlserver2025-install.sh
+++ b/install/sqlserver2025-install.sh
@@ -46,7 +46,8 @@ echo 'export PATH="$PATH:/opt/mssql-tools18/bin"' >>~/.bash_profile
 source ~/.bash_profile
 msg_ok "Installed SQL Server Tools"
 
-read -r -p "${TAB3}Do you want to run the SQL Server setup now? (Later is also possible) <y/N>" prompt
+prompt="${var_sqlserver2025_setup_now:-}"
+[[ -n "$prompt" ]] || read -r -p "${TAB3}Do you want to run the SQL Server setup now? (Later is also possible) <y/N>" prompt || true
 if [[ "${prompt,,}" =~ ^(y|yes)$ ]]; then
   /opt/mssql/bin/mssql-conf setup
 else
diff --git a/install/tinyauth-install.sh b/install/tinyauth-install.sh
index 251a16398..1c8891ebb 100644
--- a/install/tinyauth-install.sh
+++ b/install/tinyauth-install.sh
@@ -32,7 +32,9 @@ Password: ${PASS}
 EOF
   msg_ok "Set up Tinyauth"
 
-  read -r -p "${TAB3}Enter your Tinyauth subdomain (e.g. https://tinyauth.example.com): " app_url
+  app_url="${var_tinyauth_app_url:-}"
+  [[ -n "$app_url" ]] || read -r -p "${TAB3}Enter your Tinyauth subdomain (e.g. https://tinyauth.example.com): " app_url || true
+  [[ -n "$app_url" ]] || { msg_error "No Tinyauth app URL given; set var_tinyauth_app_url or answer the prompt"; exit 64; }
 
   msg_info "Creating Service"
   cat <<EOF >/opt/tinyauth/.env
@@ -77,7 +79,9 @@ Password: ${PASS}
 EOF
   msg_ok "Configured Tinyauth"
 
-  read -r -p "${TAB3}Enter your Tinyauth subdomain (e.g. https://tinyauth.example.com): " app_url
+  app_url="${var_tinyauth_app_url:-}"
+  [[ -n "$app_url" ]] || read -r -p "${TAB3}Enter your Tinyauth subdomain (e.g. https://tinyauth.example.com): " app_url || true
+  [[ -n "$app_url" ]] || { msg_error "No Tinyauth app URL given; set var_tinyauth_app_url or answer the prompt"; exit 64; }
 
   cat <<EOF >/opt/tinyauth/.env
 TINYAUTH_DATABASE_PATH=/opt/tinyauth/database.db
diff --git a/install/traefik-install.sh b/install/traefik-install.sh
index e07dc919c..8c5c4ff92 100644
--- a/install/traefik-install.sh
+++ b/install/traefik-install.sh
@@ -106,7 +106,7 @@ setup_alpine() {
   msg_ok "Installed Traefik"
 
   enable_webui="${var_traefik_webui:-}"
-  [[ -n "$enable_webui" ]] || read -p "${TAB3}Enable Traefik WebUI (Port 8080)? [y/N]: " enable_webui
+  [[ -n "$enable_webui" ]] || read -r -p "${TAB3}Enable Traefik WebUI (Port 8080)? [y/N]: " enable_webui || true
   if [[ "${enable_webui,,}" =~ ^(y|yes)$ ]]; then
     msg_info "Configuring Traefik WebUI"
     sed -i 's/localhost//g' /etc/traefik/traefik.yaml
diff --git a/install/twingate-connector-install.sh b/install/twingate-connector-install.sh
index f7f144eee..961a8743e 100644
--- a/install/twingate-connector-install.sh
+++ b/install/twingate-connector-install.sh
@@ -14,17 +14,17 @@ network_check
 update_os
 
 install -d -m 0700 /etc/twingate
-access_token=""
-refresh_token=""
-network=""
+access_token="${var_twingate_connector_access_token:-}"
+refresh_token="${var_twingate_connector_refresh_token:-}"
+network="${var_twingate_connector_network:-}"
 while [[ -z "$access_token" ]]; do
-  read -rp "${TAB3}Please enter your access token: " access_token
+  read -rp "${TAB3}Please enter your access token: " access_token || { msg_error "No access token given; set var_twingate_connector_access_token or answer the prompt"; exit 64; }
 done
 while [[ -z "$refresh_token" ]]; do
-  read -rp "${TAB3}Please enter your refresh token: " refresh_token
+  read -rp "${TAB3}Please enter your refresh token: " refresh_token || { msg_error "No refresh token given; set var_twingate_connector_refresh_token or answer the prompt"; exit 64; }
 done
 while [[ -z "$network" ]]; do
-  read -rp "${TAB3}Please enter your network name: " network
+  read -rp "${TAB3}Please enter your network name: " network || { msg_error "No network name given; set var_twingate_connector_network or answer the prompt"; exit 64; }
 done
 
 msg_info "Setup Twingate Repository"
diff --git a/install/valkey-install.sh b/install/valkey-install.sh
index a7fde9afb..686d35f42 100644
--- a/install/valkey-install.sh
+++ b/install/valkey-install.sh
@@ -37,10 +37,10 @@ setup_deb_based() {
 
   echo
   prompt="${var_valkey_tls:-}"
-  [[ -n "$prompt" ]] || read -r -p "${TAB3}Enable TLS for Valkey (Sentinel mode does not supported)? [y/N]: " prompt
+  [[ -n "$prompt" ]] || read -r -p "${TAB3}Enable TLS for Valkey (Sentinel mode does not supported)? [y/N]: " prompt || true
   if [[ ${prompt,,} =~ ^(y|yes)$ ]]; then
       tls_only="${var_valkey_tls_only:-}"
-      [[ -n "$tls_only" ]] || read -r -p "${TAB3}Use TLS-only mode (disable TCP port 6379)? [y/N]: " tls_only
+      [[ -n "$tls_only" ]] || read -r -p "${TAB3}Use TLS-only mode (disable TCP port 6379)? [y/N]: " tls_only || true
       msg_info "Configuring TLS for Valkey..."
 
       create_self_signed_cert "Valkey"
diff --git a/install/versitygw-install.sh b/install/versitygw-install.sh
index 40e84c2a2..9b10b6363 100644
--- a/install/versitygw-install.sh
+++ b/install/versitygw-install.sh
@@ -17,7 +17,7 @@ fetch_and_deploy_gh_release "versitygw" "versity/versitygw" "binary"
 
 WEBUI_CONF=""
 webui_prompt="${var_versitygw_webgui:-}"
-[[ -n "$webui_prompt" ]] || read -rp "Would you like to enable the VersityGW WebGUI (Beta)? (y/N): " webui_prompt
+[[ -n "$webui_prompt" ]] || read -rp "Would you like to enable the VersityGW WebGUI (Beta)? (y/N): " webui_prompt || true
 if [[ "${webui_prompt,,}" =~ ^(y|yes)$ ]]; then
   WEBUI_CONF="\nVGW_WEBUI_PORT=:7071\nVGW_WEBUI_NO_TLS=true"
   msg_ok "WebGUI will be enabled on port 7071"
diff --git a/install/victoriametrics-install.sh b/install/victoriametrics-install.sh
index b61894bf2..72fb1b43b 100644
--- a/install/victoriametrics-install.sh
+++ b/install/victoriametrics-install.sh
@@ -28,7 +28,7 @@ fetch_and_deploy_gh_release "victoriametrics" "VictoriaMetrics/VictoriaMetrics"
 fetch_and_deploy_gh_release "vmutils" "VictoriaMetrics/VictoriaMetrics" "prebuild" "$victoriametrics_release" "/opt/victoriametrics" "$vmutils_filename"
 
 prompt="${var_victoriametrics_logs:-}"
-[[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to add VictoriaLogs? <y/N> " prompt
+[[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to add VictoriaLogs? <y/N> " prompt || true
 
 if [[ ${prompt,,} =~ ^(y|yes)$ ]]; then
   vl_release_json="$(mktemp)"
diff --git a/install/wireguard-install.sh b/install/wireguard-install.sh
index 3ee7a6152..14bf25fa7 100644
--- a/install/wireguard-install.sh
+++ b/install/wireguard-install.sh
@@ -25,7 +25,7 @@ setup_deb_based() {
   msg_ok "Installed WireGuard"
 
   prompt="${var_wireguard_wgdashboard:-}"
-  [[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to add WGDashboard? <y/N> " prompt
+  [[ -n "$prompt" ]] || read -r -p "${TAB3}Would you like to add WGDashboard? <y/N> " prompt || true
   if [[ "${prompt,,}" =~ ^(y|yes)$ ]]; then
     git clone -q https://github.com/WGDashboard/WGDashboard.git /etc/wgdashboard
 
@@ -111,7 +111,7 @@ EOF
   msg_ok "Installed WireGuard"
 
   INSTALL_WGD="${var_wireguard_wgdashboard:-}"
-  [[ -n "$INSTALL_WGD" ]] || read -rp "${TAB3}Do you want to install WGDashboard? (y/N): " INSTALL_WGD
+  [[ -n "$INSTALL_WGD" ]] || read -rp "${TAB3}Do you want to install WGDashboard? (y/N): " INSTALL_WGD || true
   if [[ "${INSTALL_WGD,,}" =~ ^(y|yes)$ ]]; then
     msg_info "Installing additional dependencies for WGDashboard"
     $STD apk add --no-cache \
diff --git a/install/zabbix-install.sh b/install/zabbix-install.sh
index 562bb2d22..82a6f4b23 100644
--- a/install/zabbix-install.sh
+++ b/install/zabbix-install.sh
@@ -16,7 +16,8 @@ update_os
 PG_VERSION="17" setup_postgresql
 PG_DB_NAME="zabbixdb" PG_DB_USER="zabbix" setup_postgresql_db
 
-read -rp "Choose Zabbix version [1] 7.0 LTS  [2] 7.4 (Latest Stable)  [3] Latest available (default: 2): " ZABBIX_CHOICE
+ZABBIX_CHOICE="${var_zabbix_version:-}"
+[[ -n "$ZABBIX_CHOICE" ]] || read -rp "Choose Zabbix version [1] 7.0 LTS  [2] 7.4 (Latest Stable)  [3] Latest available (default: 2): " ZABBIX_CHOICE || true
 ZABBIX_CHOICE=${ZABBIX_CHOICE:-2}
 case "$ZABBIX_CHOICE" in
 1) ZABBIX_VERSION="7.0" ;;
@@ -59,8 +60,9 @@ sed -i "s/^DBUser=.*/DBUser=$PG_DB_USER/" /etc/zabbix/zabbix_server.conf
 sed -i "s/^# DBPassword=.*/DBPassword=$PG_DB_PASS/" /etc/zabbix/zabbix_server.conf
 msg_ok "Installed Zabbix $ZABBIX_VERSION"
 
+AGENT_CHOICE="${var_zabbix_agent:-}"
 while true; do
-  read -rp "Which agent do you want to install? [1=agent (classic), 2=agent2 (modern), default=1]: " AGENT_CHOICE
+  [[ -n "$AGENT_CHOICE" ]] || read -rp "Which agent do you want to install? [1=agent (classic), 2=agent2 (modern), default=1]: " AGENT_CHOICE || AGENT_CHOICE="1"
   case "$AGENT_CHOICE" in
   2)
     AGENT_PKG="zabbix-agent2"
@@ -72,6 +74,7 @@ while true; do
     ;;
   *)
     echo "Invalid choice. Please enter 1 or 2."
+    AGENT_CHOICE=""
     ;;
   esac
 done
@@ -81,7 +84,8 @@ if [ "$AGENT_PKG" = "zabbix-agent2" ]; then
   echo "Choose plugins for Zabbix Agent2:"
   echo "1) PostgreSQL only (default, recommended)"
   echo "2) All plugins (may cause issues)"
-  read -rp "Choose option [1-2]: " PLUGIN_CHOICE
+  PLUGIN_CHOICE="${var_zabbix_plugins:-}"
+  [[ -n "$PLUGIN_CHOICE" ]] || read -rp "Choose option [1-2]: " PLUGIN_CHOICE || true
 
   case "$PLUGIN_CHOICE" in
   2)