diff --git a/scripts/config/docker/docker_config_to_container.sh b/scripts/config/docker/docker_config_to_container.sh
index 0ae247c..717332e 100755
--- a/scripts/config/docker/docker_config_to_container.sh
+++ b/scripts/config/docker/docker_config_to_container.sh
@@ -44,7 +44,7 @@ dockerConfigSetupToContainer()
         if [ "$silent_flag" == "loud" ]; then
             isNotice "Copying config file to '$target_path/$config_file'..."
         fi
-        copyFile "$silent_flag" "$source_file" "$target_path/$config_file" $sudo_user_name | sudo tee -a "$logs_dir/$docker_log_file" 2>&1
+        copyFile "$silent_flag" "$source_file" "$target_path/$config_file" $sudo_user_name | runFileWrite -a "$logs_dir/$docker_log_file" 2>&1
     fi
 
     if [[ -n "$config_overrides" ]]; then
@@ -60,9 +60,9 @@ dockerConfigSetupToContainer()
         fi
     fi
 
-    if sudo grep -qE 'RANDOMIZED(PASSWORD|USERNAME|BCRYPTPASSWORD|HEX|VAPID|APPKEY)[0-9]*' "$target_path/$config_file" 2>/dev/null; then
+    if runFileOp grep -qE 'RANDOMIZED(PASSWORD|USERNAME|BCRYPTPASSWORD|HEX|VAPID|APPKEY)[0-9]*' "$target_path/$config_file" 2>/dev/null; then
         scanFileForRandomPasswordKeysUsers "$target_path/$config_file"
-        sudo chmod a+r "$target_path/$config_file" 2>/dev/null || true
+        runFileOp chmod a+r "$target_path/$config_file" 2>/dev/null || true
         source "$target_path/$config_file"
     fi
 
@@ -81,7 +81,7 @@ dockerConfigSetupToContainer()
     if [[ "$flags" == "install" ]]; then
         if [ -f "$target_path/$config_file" ]; then
             # Same content check
-            if sudo cmp -s "$source_file" "$target_path/$config_file"; then
+            if runFileOp cmp -s "$source_file" "$target_path/$config_file"; then
                 isNotice "Config file for $app_name contains no edits."
                 while true; do
                     #isQuestion "? (y/n): "
@@ -91,11 +91,11 @@ dockerConfigSetupToContainer()
                     case $editconfigaccept in
                         [yY])
                             # Calculate checksum of the original file
-                            local original_checksum=$(sudo md5sum "$target_path/$config_file")
+                            local original_checksum=$(runFileOp md5sum "$target_path/$config_file")
                             # Open the file with $CFG_TEXT_EDITOR for editing
-                            sudo $CFG_TEXT_EDITOR "$target_path/$config_file"
+                            runFileOp $CFG_TEXT_EDITOR "$target_path/$config_file"
                             # Calculate checksum of the edited file
-                            local edited_checksum=$(sudo md5sum "$target_path/$config_file")
+                            local edited_checksum=$(runFileOp md5sum "$target_path/$config_file")
                             # Compare the checksums to check if changes were made
                             if [[ "$original_checksum" != "$edited_checksum" ]]; then
                                 source $target_path/$config_file
@@ -124,7 +124,7 @@ dockerConfigSetupToContainer()
                     case $resetconfigaccept in
                         [yY])
                             isNotice "Resetting $app_name config file."
-                            copyFile "loud" "$source_file" "$target_path/$config_file" $docker_install_user | sudo tee -a "$logs_dir/$docker_log_file" 2>&1
+                            copyFile "loud" "$source_file" "$target_path/$config_file" $docker_install_user | runFileWrite -a "$logs_dir/$docker_log_file" 2>&1
                             source $target_path/$config_file
                             dockerConfigSetupToContainer "loud" $app_name;
                             while true; do
@@ -135,13 +135,13 @@ dockerConfigSetupToContainer()
                                 case $editconfigaccept in
                                     [yY])
                                         # Calculate the checksum of the original file
-                                        local original_checksum=$(sudo md5sum "$target_path/$config_file")
+                                        local original_checksum=$(runFileOp md5sum "$target_path/$config_file")
 
                                         # Open the file with $CFG_TEXT_EDITOR for editing
-                                        sudo $CFG_TEXT_EDITOR "$target_path/$config_file"
+                                        runFileOp $CFG_TEXT_EDITOR "$target_path/$config_file"
 
                                         # Calculate the checksum of the edited file
-                                        local edited_checksum=$(sudo md5sum "$target_path/$config_file")
+                                        local edited_checksum=$(runFileOp md5sum "$target_path/$config_file")
 
                                         # Compare the checksums to check if changes were made
                                         if [[ "$original_checksum" != "$edited_checksum" ]]; then
@@ -170,13 +170,13 @@ dockerConfigSetupToContainer()
                                 case $editconfigaccept in
                                     [yY])
                                         # Calculate the checksum of the original file
-                                        local original_checksum=$(sudo md5sum "$target_path/$config_file")
+                                        local original_checksum=$(runFileOp md5sum "$target_path/$config_file")
 
                                         # Open the file with $CFG_TEXT_EDITOR for editing
-                                        sudo $CFG_TEXT_EDITOR "$target_path/$config_file"
+                                        runFileOp $CFG_TEXT_EDITOR "$target_path/$config_file"
 
                                         # Calculate the checksum of the edited file
-                                        local edited_checksum=$(sudo md5sum "$target_path/$config_file")
+                                        local edited_checksum=$(runFileOp md5sum "$target_path/$config_file")
 
                                         # Compare the checksums to check if changes were made
                                         if [[ "$original_checksum" != "$edited_checksum" ]]; then
@@ -204,7 +204,7 @@ dockerConfigSetupToContainer()
             fi
         else
             isNotice "Config file for $app_name does not exist. Creating it..."
-            copyFile "loud" "$source_file" "$target_path/$config_file" $docker_install_user | sudo tee -a "$logs_dir/$docker_log_file" 2>&1
+            copyFile "loud" "$source_file" "$target_path/$config_file" $docker_install_user | runFileWrite -a "$logs_dir/$docker_log_file" 2>&1
             isNotice "Config file for $app_name contains no edits."
             while true; do
                 #isQuestion "Would you like to make edits to the config file? (y/n): "
@@ -214,13 +214,13 @@ dockerConfigSetupToContainer()
                 case $editconfigaccept in
                     [yY])
                         # Calculate the checksum of the original file
-                        local original_checksum=$(sudo md5sum "$target_path/$config_file")
+                        local original_checksum=$(runFileOp md5sum "$target_path/$config_file")
 
                         # Open the file with $CFG_TEXT_EDITOR for editing
-                        sudo $CFG_TEXT_EDITOR "$target_path/$config_file"
+                        runFileOp $CFG_TEXT_EDITOR "$target_path/$config_file"
 
                         # Calculate the checksum of the edited file
-                        local edited_checksum=$(sudo md5sum "$target_path/$config_file")
+                        local edited_checksum=$(runFileOp md5sum "$target_path/$config_file")
 
                         # Compare the checksums to check if changes were made
                         if [[ "$original_checksum" != "$edited_checksum" ]]; then
diff --git a/scripts/docker/command/run_privileged.sh b/scripts/docker/command/run_privileged.sh
index 93b6bfb..2e5db5c 100644
--- a/scripts/docker/command/run_privileged.sh
+++ b/scripts/docker/command/run_privileged.sh
@@ -27,13 +27,20 @@ runFileOp() {
 # Write stdin to a path with the right privilege (replaces `… | sudo tee path`).
 #   rooted   -> sudo tee
 #   rootless -> tee as the Docker install user
-# Usage: some_command | runFileWrite /path/to/file
+# Pass -a/--append as the first arg to append instead of truncate (replaces
+# `… | sudo tee -a path`, e.g. the /docker/logs log-append idiom).
+# Usage: some_command | runFileWrite [-a] /path/to/file
 runFileWrite() {
+    local append=""
+    if [[ "$1" == "-a" || "$1" == "--append" ]]; then
+        append=" -a"
+        shift
+    fi
     local dest="$1"
     if [[ "$CFG_DOCKER_INSTALL_TYPE" == "rootless" ]]; then
-        dockerCommandRunInstallUser "tee '$dest' >/dev/null"
+        dockerCommandRunInstallUser "tee$append '$dest' >/dev/null"
     else
-        sudo tee "$dest" >/dev/null
+        sudo tee$append "$dest" >/dev/null
     fi
 }