diff --git a/device-connectors/src/testflinger_device_connectors/devices/muxpi/muxpi.py b/device-connectors/src/testflinger_device_connectors/devices/muxpi/muxpi.py
index 86831acb..7daf7418 100644
--- a/device-connectors/src/testflinger_device_connectors/devices/muxpi/muxpi.py
+++ b/device-connectors/src/testflinger_device_connectors/devices/muxpi/muxpi.py
@@ -19,6 +19,7 @@
 import subprocess
 import shlex
 import time
+import urllib.request
 from contextlib import contextmanager
 from pathlib import Path
 
@@ -162,11 +163,14 @@ def provision(self):
         logger.info("Flashing Test image")
         try:
             self.flash_test_image(url)
-            with self.remote_mount():
-                image_type = self.get_image_type()
-                logger.info("Image type detected: {}".format(image_type))
-                logger.info("Creating Test User")
-                self.create_user(image_type)
+            if self.job_data["provision_data"].get("create_user", True):
+                with self.remote_mount():
+                    image_type = self.get_image_type()
+                    logger.info("Image type detected: {}".format(image_type))
+                    logger.info("Creating Test User")
+                    self.create_user(image_type)
+            else:
+                logger.info("Skipping test user creation (create_user=False)")
             self.run_post_provision_script()
             logger.info("Booting Test Image")
             cmd = self.config.get("control_switch_device_cmd", "stm -dut")
@@ -469,9 +473,30 @@ def check_test_image_booted(self):
         test_password = self.job_data.get("test_data", {}).get(
             "test_password", "ubuntu"
         )
+
+        boot_check_url = self.job_data.get("provision_data", {}).get(
+            "boot_check_url", None
+        )
+        if boot_check_url is not None:
+            # We don't support full shell expansion of the URL, but just
+            # replace a literal $DEVICE_IP to the device's IP address
+            boot_check_url = boot_check_url.replace(
+                "$DEVICE_IP", self.config["device_ip"]
+            )
+
         while time.time() - started < 1200:
             try:
                 time.sleep(10)
+
+                if boot_check_url is not None:
+                    with urllib.request.urlopen(
+                        boot_check_url, timeout=5
+                    ) as response:
+                        if response.status == 200:
+                            return True
+
+                    continue
+
                 cmd = [
                     "sshpass",
                     "-p",
diff --git a/docs/.wordlist.txt b/docs/.wordlist.txt
index 417470c7..36bafd7d 100644
--- a/docs/.wordlist.txt
+++ b/docs/.wordlist.txt
@@ -92,3 +92,7 @@ xenial
 yaml
 LTS
 virtualenv
+IoT
+Tegra
+zstd
+xz
diff --git a/docs/reference/device-connector-types.rst b/docs/reference/device-connector-types.rst
index a232722d..6a3565c5 100644
--- a/docs/reference/device-connector-types.rst
+++ b/docs/reference/device-connector-types.rst
@@ -19,7 +19,7 @@ To specify the commands to run by the device in each test phase, set the ``testf
    * - ``multi`` 
      - Experimental device type that is used for provisioning multiple other devices in order to coordinate a job across multiple devices at the same time.
    * - ``muxpi`` 
-     - MuxPi or SDWire device capable of multiplexing the SD card so that it can be written, then control can be switched to the DUT to boot the image.
+     - MuxPi or SDWire device capable of multiplexing the SD card so that it can be written, then control can be switched to the DUT to boot the image, see :ref:`muxpi`.
    * - ``netboot`` 
      - Special purpose device connector for a few devices that must be booted and flashed remotely but the image they need is not compatible with MaaS.
    * - ``noprovision`` 
@@ -32,3 +32,54 @@ To specify the commands to run by the device in each test phase, set the ``testf
      - This device connector is used for Lenovo OEM devices running certain versions of OEM supported images that can use a recovery partition to recover not only the same image, but in some cases, other OEM image versions as well.
    * - ``hp_oemscript`` 
      - This device connector is used for HP OEM devices running certain versions of OEM supported images that can use a recovery partition to recover not only the same image, but in some cases, other OEM image versions as well.
+
+.. _muxpi:
+
+muxpi
+-----
+
+The ``muxpi`` device connector supports the following ``provision_data`` keys:
+
+.. list-table:: Supported ``provision_data`` keys for ``muxpi``
+   :header-rows: 1
+
+   * - Key
+     - Description
+   * - ``url``
+     - URL to a compressed disk image that is downloaded, decompressed using
+       ``unzstd`` (**xz** format is recommended, but any format supported by
+       the ``zstd`` tool is supported) and
+       flashed to the SD card, which will be used to boot up the DUT.
+   * - ``create_user``
+     - Boolean (default ``true``) specifying whether a user account should be created.
+   * - ``boot_check_url``
+     - URL to use for checking if the DUT has finished booting; a literal
+       ``$DEVICE_IP`` in the URL will be replaced with the IP address of the DUT.
+       Requesting the URL has to return HTTP status code 200 for the device to
+       be considered "booted".
+       If not set, SSH will be used to check when the device comes online.
+       When ``boot_check_url`` is set, the SSH key for public key authentication
+       won't be installed on the DUT to allow for test cases without SSH.
+
+Image types recognised for user account creation
+(the device type is not used if ``create_user: false`` is set in ``provision_data``):
+
+.. list-table:: Supported image types
+   :header-rows: 1
+
+   * - Image type
+     - Description
+   * - ``ce-oem-iot``
+     - IoT OEM certification
+   * - ``tegra``
+     - NVidia Tegra
+   * - ``pi-desktop``
+     - Ubuntu Desktop on Raspberry Pi
+   * - ``ubuntu``
+     - Ubuntu Classic
+   * - ``core``
+     - Ubuntu Core
+   * - ``core20``
+     - Ubuntu Core 20
+   * - ``ubuntu-cpc``
+     - Ubuntu Certified Public Cloud