diff --git a/pkgs/clan-cli/clan_cli/webui/routers/vms.py b/pkgs/clan-cli/clan_cli/webui/routers/vms.py
index 179b9e1..5b59329 100644
--- a/pkgs/clan-cli/clan_cli/webui/routers/vms.py
+++ b/pkgs/clan-cli/clan_cli/webui/routers/vms.py
@@ -2,7 +2,7 @@ import asyncio
 import json
 import logging
 import shlex
-from typing import Annotated
+from typing import Annotated, Iterator
 from uuid import UUID
 
 from fastapi import APIRouter, BackgroundTasks, Body, HTTPException, Request, status
@@ -34,12 +34,10 @@ def nix_build_vm_cmd(machine: str, flake_url: str) -> list[str]:
 
 
 class NixBuildException(HTTPException):
-    def __init__(self, uuid: UUID, msg: str, loc: list = ["body", "flake_attr"]):
-        self.uuid = uuid
+    def __init__(self, msg: str, loc: list = ["body", "flake_attr"]):
         detail = [
             {
                 "loc": loc,
-                "uuid": str(uuid),
                 "msg": msg,
                 "type": "value_error",
             }
@@ -65,7 +63,7 @@ class BuildVmTask(BaseTask):
             vm_path = f"{''.join(proc.stdout[0])}/bin/run-nixos-vm"
             self.log.debug(f"vm_path: {vm_path}")
 
-            self.run_cmd(vm_path)
+            self.run_cmd([vm_path])
             self.finished = True
         except Exception as e:
             self.failed = True
@@ -103,7 +101,6 @@ async def inspect_vm(
 
     if proc.returncode != 0:
         raise NixBuildException(
-            ""
             f"""
 Failed to evaluate vm from '{flake_url}#{flake_attr}'.
 command: {shlex.join(cmd)}
@@ -127,7 +124,7 @@ async def get_status(uuid: UUID) -> VmStatusResponse:
 @router.get("/api/vms/{uuid}/logs")
 async def get_logs(uuid: UUID) -> StreamingResponse:
     # Generator function that yields log lines as they are available
-    def stream_logs():
+    def stream_logs() -> Iterator[str]:
         task = get_task(uuid)
 
         for proc in task.procs:
diff --git a/pkgs/clan-cli/clan_cli/webui/task_manager.py b/pkgs/clan-cli/clan_cli/webui/task_manager.py
index 25890ee..21374cb 100644
--- a/pkgs/clan-cli/clan_cli/webui/task_manager.py
+++ b/pkgs/clan-cli/clan_cli/webui/task_manager.py
@@ -5,6 +5,7 @@ import select
 import shlex
 import subprocess
 import threading
+from typing import Any
 from uuid import UUID, uuid4
 
 
@@ -105,14 +106,14 @@ def get_task(uuid: UUID) -> BaseTask:
     return POOL[uuid]
 
 
-def register_task(task: BaseTask, *kwargs) -> UUID:
+def register_task(task: type, *args: Any) -> UUID:
     global POOL
     if not issubclass(task, BaseTask):
         raise TypeError("task must be a subclass of BaseTask")
 
     uuid = uuid4()
 
-    inst_task = task(uuid, *kwargs)
+    inst_task = task(uuid, *args)
     POOL[uuid] = inst_task
     inst_task.start()
     return uuid
diff --git a/pkgs/clan-cli/tests/test_vms_api.py b/pkgs/clan-cli/tests/test_vms_api.py
index 3f62ae7..2939bc5 100644
--- a/pkgs/clan-cli/tests/test_vms_api.py
+++ b/pkgs/clan-cli/tests/test_vms_api.py
@@ -2,6 +2,7 @@ from pathlib import Path
 
 import pytest
 from api import TestClient
+from httpx import SyncByteStream
 
 # @pytest.mark.impure
 # def test_inspect(api: TestClient, test_flake_with_core: Path) -> None:
@@ -41,6 +42,7 @@ def test_create(api: TestClient, test_flake_with_core: Path) -> None:
 
     response = api.get(f"/api/vms/{uuid}/logs")
     print("=========FLAKE LOGS==========")
+    assert isinstance(response.stream, SyncByteStream)
     for line in response.stream:
         assert line != b"", "Failed to get vm logs"
         print(line.decode("utf-8"), end="")
@@ -48,6 +50,7 @@ def test_create(api: TestClient, test_flake_with_core: Path) -> None:
     assert response.status_code == 200, "Failed to get vm logs"
 
     response = api.get(f"/api/vms/{uuid}/logs")
+    assert isinstance(response.stream, SyncByteStream)
     print("=========VM LOGS==========")
     for line in response.stream:
         assert line != b"", "Failed to get vm logs"