diff --git a/README.md b/README.md
index dd984de..050f0d5 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,7 @@ running [Faasm](https://github.com/faasm/faasm) cluster.
 To install `faasmctl` you need a working `pip` (virtual-)environment. Then:
 
 ```bash
-pip install faasmctl==0.47.1
+pip install faasmctl==0.48.0
 ```
 
 ## Usage
diff --git a/faasmctl/tasks/invoke.py b/faasmctl/tasks/invoke.py
index 56b54a4..f639493 100644
--- a/faasmctl/tasks/invoke.py
+++ b/faasmctl/tasks/invoke.py
@@ -87,8 +87,17 @@ def invoke(
     exec_time = "{:.2f} s".format(
         get_execution_time_from_message_results(result, unit="s")
     )
+    cold_start_time = "{:.2f} ms".format(
+        get_execution_time_from_message_results(
+            result, unit="ms", ext_start_ts=(start_ts * 1e3)
+        )
+    )
 
     if output_format is not None:
+        if output_format == "cold-start":
+            print(cold_start_time[:-3])
+            return 0
+
         if output_format == "exec-time":
             print(exec_time[:-2])
             return 0
@@ -98,7 +107,7 @@ def invoke(
             return 0
 
         if output_format == "start-end-ts":
-            print(f"{start_ts},{end_ts}")
+            print(f"{start_ts},{end_ts}")  # noqa: E231
             return 0
 
     print("======================= Faasm Execution =========================")
diff --git a/faasmctl/tasks/monitor.py b/faasmctl/tasks/monitor.py
index edfae2b..13b6db1 100644
--- a/faasmctl/tasks/monitor.py
+++ b/faasmctl/tasks/monitor.py
@@ -126,7 +126,7 @@ def print_planner_resources(policy):
 
     def color_text(color, text="X"):
         num1 = str(color)
-        return f"\033[38;5;{num1}m{text}\033[0;0m"
+        return f"\033[38;5;{num1}m{text}\033[0;0m"  # noqa: E231, E702
 
     def print_line(host_msg, worker_occupation, next_evicted_vm_ips=[]):
         is_evicted = host_msg.ip in next_evicted_vm_ips
diff --git a/faasmctl/util/compose.py b/faasmctl/util/compose.py
index cc5ae87..fba5f55 100644
--- a/faasmctl/util/compose.py
+++ b/faasmctl/util/compose.py
@@ -11,6 +11,8 @@
 from subprocess import run
 from time import sleep
 
+DEFAULT_FAASM_ACCLESS_ENABLED = "off"
+DEFAULT_FAASM_ATTESTATION_SERVICE_URL = "https://localhost:8443"
 DEFAULT_FAASM_CAPTURE_STDOUT = "off"
 DEFAULT_FAASM_OVERRIDE_CPU_COUNT = "8"
 
@@ -124,6 +126,16 @@ def get_compose_env_vars(faasm_checkout, mount_source, ini_file=None):
         if "FAASM_CLI_IMAGE" in environ:
             env["FAASM_CLI_IMAGE"] = environ["FAASM_CLI_IMAGE"]
 
+    # Tunable env. vars with curated default values
+
+    env["FAASM_ACCLESS_ENABLED"] = DEFAULT_FAASM_ACCLESS_ENABLED
+    if "FAASM_ACCLESS_ENABLED" in environ:
+        env["FAASM_ACCLESS_ENABLED"] = environ["FAASM_ACCLESS_ENABLED"]
+
+    env["FAASM_ATTESTATION_SERVICE_URL"] = DEFAULT_FAASM_ATTESTATION_SERVICE_URL
+    if "FAASM_ATTESTATION_SERVICE_URL" in environ:
+        env["FAASM_ATTESTATION_SERVICE_URL"] = environ["FAASM_ATTESTATION_SERVICE_URL"]
+
     env["FAASM_OVERRIDE_CPU_COUNT"] = DEFAULT_FAASM_OVERRIDE_CPU_COUNT
     if "FAASM_OVERRIDE_CPU_COUNT" in environ:
         env["FAASM_OVERRIDE_CPU_COUNT"] = environ["FAASM_OVERRIDE_CPU_COUNT"]
diff --git a/faasmctl/util/results.py b/faasmctl/util/results.py
index d37c041..b6eaad0 100644
--- a/faasmctl/util/results.py
+++ b/faasmctl/util/results.py
@@ -1,4 +1,4 @@
-def get_execution_time_from_message_results(result, unit="s"):
+def get_execution_time_from_message_results(result, unit="s", ext_start_ts=None):
     valid_units = ["s", "ms", "us"]
     if unit not in valid_units:
         print(
@@ -13,6 +13,8 @@ def get_execution_time_from_message_results(result, unit="s"):
         start_ts = min([msg.startTimestamp for msg in result.messageResults])
     except AttributeError:
         start_ts = min([msg.timestamp for msg in result.messageResults])
+    if ext_start_ts is not None:
+        start_ts = ext_start_ts
     end_ts = max([msg.finishTimestamp for msg in result.messageResults])
 
     if unit == "s":
diff --git a/faasmctl/util/version.py b/faasmctl/util/version.py
index 7731f38..5a18fd7 100644
--- a/faasmctl/util/version.py
+++ b/faasmctl/util/version.py
@@ -1,4 +1,4 @@
-FAASMCTL_VERSION = "0.47.1"
+FAASMCTL_VERSION = "0.48.0"
 
 
 def get_version():
diff --git a/pyproject.toml b/pyproject.toml
index 2aa0c2b..6612167 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "faasmctl"
-version = "0.47.1"
+version = "0.48.0"
 authors = [
   { name="Faasm Team", email="foo@bar.com" },
 ]