diff --git a/README.md b/README.md
index 0e1ae43..e896dfa 100644
--- a/README.md
+++ b/README.md
@@ -17,19 +17,24 @@ Convert ROS packages to Debian packages.
 Repos file with list of repositories to package.
 Defaults to sources.repos.
 
+## `SBUILD_CONF`
+
+Additional sbuild.conf lines.
+For example EXTRA_REPOSITORIES, or VERBOSE.
+See man sbuild.conf.
+
+## `ROSDEP_SOURCE`
+
+Additional rosdep sources.
+
 ## `GITHUB_TOKEN`
 
-Set to `${{ secrets.GITHUB_TOKEN }}` to deploy to a `DEB_DISTRO-ROS_DISTRO`
-branch in the same repo.
+Set to `${{ secrets.GITHUB_TOKEN }}` to deploy to a `DEB_DISTRO-ROS_DISTRO` branch in the same repo.
 
 ## ``SQUASH_HISTORY``
 
 If set to true, all previous commits on the target branch will be discarded.
-For example, if you are deploying a static site with lots of binary artifacts, this can help the repository becoming overly bloated.
-
-## `VERBOSE`
-
-Set to true to enable verbose builds.
+For example, if you are deploying a static site with lots of binary artifacts, this can help prevent the repository from becoming overlay bloated
 
 ## Example usage
 
diff --git a/action.yaml b/action.yaml
index dff5ae0..1a4e98a 100644
--- a/action.yaml
+++ b/action.yaml
@@ -15,6 +15,13 @@ inputs:
     description: Repos file with list of repositories to package.
     required: false
     default: sources.repos
+  SBUILD_CONF:
+    description: Additional sbuild.conf lines. For example EXTRA_REPOSITORIES,
+      or VERBOSE. See man sbuild.conf.
+    required: false
+  ROSDEP_SOURCE:
+    description: Additional rosdep sources.
+    required: false
   GITHUB_TOKEN:
     description: Set to deploy to a DEB_DISTRO-ROS_DISTRO branch in the same repo.
     required: false
@@ -23,9 +30,6 @@ inputs:
     description: If set to true, all previous commits on the target branch will be discarded.
     required: false
     default: false
-  VERBOSE:
-    description: Set to true to enable verbose builds.
-    default: false
 runs:
   using: composite
   steps:
@@ -45,13 +49,14 @@ runs:
       env:
         DEB_DISTRO: ${{ inputs.DEB_DISTRO }}
         REPOS_FILE: ${{ inputs.REPOS_FILE }}
+        SBUILD_CONF: ${{ inputs.SBUILD_CONF }}
     - name: Create packages
       run: $GITHUB_ACTION_PATH/build.sh
       shell: sh
       env:
         ROS_DISTRO: ${{ inputs.ROS_DISTRO }}
         DEB_DISTRO: ${{ inputs.DEB_DISTRO }}
-        VERBOSE: ${{ inputs.VERBOSE }}
+        ROSDEP_SOURCE: ${{ inputs.ROSDEP_SOURCE }}
     - name: Create apt repository
       run: $GITHUB_ACTION_PATH/repository.sh
       shell: sh
diff --git a/build.sh b/build.sh
index df0d5e7..4870d00 100755
--- a/build.sh
+++ b/build.sh
@@ -3,8 +3,6 @@
 
 set -ex
 
-test -n "$VERBOSE" && set -- --verbose
-
 if debian-distro-info --all | grep -q "$DEB_DISTRO"; then
   DISTRIBUTION=debian
 elif ubuntu-distro-info --all | grep -q "$DEB_DISTRO"; then
@@ -45,6 +43,7 @@ for PKG in $(catkin_topological_order --only-names); do
   printf "%s:\n  %s:\n  - %s\n" "$PKG" "$DISTRIBUTION" "ros-$ROS_DEB$(printf '%s' "$PKG" | tr '_' '-')" >> /home/runner/apt_repo/local.yaml
 done
 echo "yaml file:///home/runner/apt_repo/local.yaml $ROS_DISTRO" | sudo tee /etc/ros/rosdep/sources.list.d/1-local.list
+printf "%s" "$ROSDEP_SOURCE" | sudo tee /etc/ros/rosdep/sources.list.d/2-remote.list
 
 rosdep update
 
@@ -74,8 +73,8 @@ for PKG_PATH in $(catkin_topological_order --only-folders); do
 
   # dpkg-source-opts: no need for upstream.tar.gz
   sbuild --chroot-mode=unshare --no-clean-source --no-run-lintian \
-    --dpkg-source-opts="-Zgzip -z1 --format=1.0 -sn" \
-    --build-dir=/home/runner/apt_repo --extra-package=/home/runner/apt_repo "$@"
+    --dpkg-source-opts="-Zgzip -z1 --format=1.0 -sn" --build-dir=/home/runner/apt_repo \
+    --extra-package=/home/runner/apt_repo "$@"
   )
   COUNT=$((COUNT+1))
   echo "::endgroup::"
diff --git a/prepare.sh b/prepare.sh
index bf3ff21..e4bf8f0 100755
--- a/prepare.sh
+++ b/prepare.sh
@@ -29,6 +29,9 @@ $build_path = "/build/package/";
 $dsc_dir = "package";
 $unshare_bind_mounts = [ { directory => '/home/runner/.cache/ccache', mountpoint => '/build/ccache' } ];
 EOF
+echo "$SBUILD_CONF" >> ~/.sbuildrc
+
+cat ~/.sbuildrc
 
 echo "Checkout workspace"