diff --git a/app/build_geographiclib.sh b/app/build_geographiclib.sh
new file mode 100755
index 000000000..a1906e5c5
--- /dev/null
+++ b/app/build_geographiclib.sh
@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# build_geographiclib.sh
+# Build and install GeographicLib from source into /usr/local
+
+GIT_REPO=${1:-https://github.com/GeographicLib/GeographicLib.git}
+INSTALL_PREFIX=${2:-/usr/local}
+
+echo "Cloning GeographicLib from $GIT_REPO"
+TMP=$(mktemp -d)
+trap 'rm -rf "$TMP"' EXIT
+
+git clone --depth 1 "$GIT_REPO" "$TMP/GeographicLib"
+mkdir -p "$TMP/GeographicLib/build"
+pushd "$TMP/GeographicLib/build" >/dev/null
+cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX="$INSTALL_PREFIX"
+make -j$(nproc)
+sudo make install
+popd >/dev/null
+
+echo "GeographicLib installed to $INSTALL_PREFIX"
diff --git a/app/install_arcgis.sh b/app/install_arcgis.sh
new file mode 100755
index 000000000..c85007925
--- /dev/null
+++ b/app/install_arcgis.sh
@@ -0,0 +1,35 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# install_arcgis.sh
+# Unpacks ArcGIS Maps SDK for Qt and installs into /opt/ArcGIS
+# Expects the zip at ../ArcGIS_Maps_SDK_Qt_linux_300.0.0.zip relative to repo root
+
+ZIP_PATH="${1:-../ArcGIS_Maps_SDK_Qt_linux_300.0.0.zip}"
+TARGET_DIR="/opt/ArcGIS/MapsSDK_Qt_300.0.0"
+
+if [[ ! -f "$ZIP_PATH" ]]; then
+  echo "ArcGIS zip not found at $ZIP_PATH"
+  echo "Please place ArcGIS_Maps_SDK_Qt_linux_300.0.0.zip at that path before running this script."
+  exit 1
+fi
+
+sudo mkdir -p "$TARGET_DIR"
+sudo chown $(id -u):$(id -g) "$TARGET_DIR"
+
+echo "Extracting $ZIP_PATH to $TARGET_DIR..."
+unzip -q "$ZIP_PATH" -d "$TARGET_DIR"
+
+# Typical SDK layout contains lib/cmake packages and Qt plugins. Ensure CMAKE_PREFIX_PATH contains it.
+echo "ArcGIS SDK extracted. Add $TARGET_DIR to CMAKE_PREFIX_PATH when building:"
+echo "  -DCMAKE_PREFIX_PATH=\"$TARGET_DIR:$CMAKE_PREFIX_PATH\""
+
+# Optionally perform install actions if package contains an install script
+if [[ -x "$TARGET_DIR/install.sh" ]]; then
+  echo "Running provided install.sh inside SDK"
+  pushd "$TARGET_DIR" >/dev/null
+  sudo ./install.sh || true
+  popd >/dev/null
+fi
+
+echo "ArcGIS SDK unpack complete. Files are at $TARGET_DIR"
diff --git a/app/install_rti.sh b/app/install_rti.sh
new file mode 100755
index 000000000..688716446
--- /dev/null
+++ b/app/install_rti.sh
@@ -0,0 +1,43 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# install_rti.sh
+# Install RTI Connext from a local installer archive (user-supplied, due to licensing)
+# Expected file: ../rti-connext-7.7.0.tar.gz or provided as first arg
+
+RTI_ARCHIVE=${1:-../rti-connext-7.7.0.tar.gz}
+INSTALL_PREFIX=${2:-/opt/RTI}
+
+if [[ ! -f "$RTI_ARCHIVE" ]]; then
+  echo "RTI Connext archive not found at $RTI_ARCHIVE"
+  echo "Please place rti-connext-7.7.0 archive at that path or pass path as first arg."
+  exit 1
+fi
+
+echo "Installing RTI Connext from $RTI_ARCHIVE to $INSTALL_PREFIX"
+sudo mkdir -p "$INSTALL_PREFIX"
+sudo chown $(id -u):$(id -g) "$INSTALL_PREFIX"
+
+echo "Extracting..."
+tar xzf "$RTI_ARCHIVE" -C "$INSTALL_PREFIX" --strip-components=1
+
+# Typical Connext installs provide scripts under $INSTALL_PREFIX/etc or bin - advise user
+if [[ -f "$INSTALL_PREFIX/rticonnextdds-cxx-X.Y.Z/setup.sh" ]]; then
+  echo "Found setup script; source it in your environment when building."
+fi
+
+echo "RTI Connext files are in $INSTALL_PREFIX"
+echo "Note: You may need to run vendor installer or agree license terms interactively; this script assumes an already prepared archive."
+
+echo "Cloning RTI Community helper repos (examples/connectors)"
+if [[ ! -d "/opt/rticommunity" ]]; then
+  sudo mkdir -p /opt/rticommunity
+  sudo chown $(id -u):$(id -g) /opt/rticommunity
+fi
+pushd /opt/rticommunity >/dev/null
+if [[ ! -d rticonnextdds-connector ]]; then
+  git clone https://github.com/rticommunity/rticonnextdds-connector.git || true
+fi
+popd >/dev/null
+
+echo "RTI install script finished. Please verify licensing and run vendor-provided installers if required."
diff --git a/app/prepare_rpm.sh b/app/prepare_rpm.sh
new file mode 100755
index 000000000..f822ec9fd
--- /dev/null
+++ b/app/prepare_rpm.sh
@@ -0,0 +1,41 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# Usage: prepare_rpm.sh [PROJECT] [OS_VERSION] [LTS_VERSION] [GUEZ_MODE]
+# If PROJECT omitted, runs for Legatus, Guez, DemoTablet (in that order).
+
+PROJECTS=("Legatus" "Guez" "DemoTablet")
+PROJECT=${1:-}
+OS_VERSION=${2:-ubuntu24}
+LTS_VERSION=${3:-1.2.0}
+GUEZ_MODE=${4:-ON}
+
+REPO_DIR="$(pwd)"
+
+run_for_project() {
+  local proj="$1"
+  echo "Preparing RPM for project: $proj (OS=$OS_VERSION, LTS=$LTS_VERSION, GUEZ_MODE=$GUEZ_MODE)"
+  export PROJECT_BASE_DIR="/tmp/${proj}_staging"
+  rm -rf "$PROJECT_BASE_DIR"
+  mkdir -p "$PROJECT_BASE_DIR"
+  # Stage workspace similar to Jenkins: exclude rpms, .git, build
+  tar --exclude='./rpms' --exclude='./.git' --exclude='./build' -cf - -C "$REPO_DIR" . | tar -xf - -C "$PROJECT_BASE_DIR"
+
+  mkdir -p "$REPO_DIR/rpmbuild"
+  pushd "$REPO_DIR/rpmbuild" >/dev/null
+  python3 make_rpm.py -c LTS \
+    --project_name "$proj" \
+    --version "$LTS_VERSION" \
+    --output_dir "$REPO_DIR/rpms/${proj}/${OS_VERSION}/" \
+    --cmake_build_flags "-DUSE_IPO=ON -DUSE_UNITY_BUILD=ON -DGUEZ_MODE=${GUEZ_MODE} -DBUILD_WLS=ON -DPostgreSQL_TYPE_INCLUDE_DIR=/usr/include/pgsql/"
+  popd >/dev/null
+  echo "RPMs placed in: $REPO_DIR/rpms/${proj}/${OS_VERSION}/"
+}
+
+if [[ -n "$PROJECT" ]]; then
+  run_for_project "$PROJECT"
+else
+  for p in "${PROJECTS[@]}"; do
+    run_for_project "$p"
+  done
+fi