diff --git a/docs/source/usage/logging.md b/docs/source/usage/logging.md
index 2352db19..dc803f98 100644
--- a/docs/source/usage/logging.md
+++ b/docs/source/usage/logging.md
@@ -13,7 +13,7 @@ logging.getLogger("torchrunx.node1").setLevel(logging.INFO)
 logging.getLogger("torchrunx.node1.1").setLevel(logging.INFO)  # worker 1 (local rank) on node 1
 ```
 
-Also, logs from all agents and workers are written to a directory (by the current timestamp) in `$TORCHRUNX_LOG_DIR` (default: `./torchrunx_logs`). These can be controlled using `$TORCHRUNX_LOG_LEVEL` (default: `INFO`).
+Also, logs from all agents and workers are written to a directory (by the current timestamp) in `$TORCHRUNX_LOG_DIR` (default: `./torchrunx_logs`). These can be controlled using `$TORCHRUNX_LOG_LEVEL` (default: `INFO`). File logging can be disabled by setting `$TORCHRUNX_LOG_FILE` to `""`.
 
 ## Customization
 
diff --git a/pyproject.toml b/pyproject.toml
index 2ca735bc..7d54a760 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,10 +1,10 @@
 [build-system]
-requires = ["hatchling"]
-build-backend = "hatchling.build"
+requires = ["uv_build"]
+build-backend = "uv_build"
 
 [project]
 name = "torchrunx"
-version = "0.3.3"
+version = "0.3.4"
 authors = [
   { name = "Apoorv Khandelwal", email = "mail@apoorvkh.com" },
   { name = "Peter Curtin", email = "peter_curtin@brown.edu" },
diff --git a/src/torchrunx/utils/log_handling.py b/src/torchrunx/utils/log_handling.py
index 34e919f1..24dbf85c 100644
--- a/src/torchrunx/utils/log_handling.py
+++ b/src/torchrunx/utils/log_handling.py
@@ -79,30 +79,36 @@ def default_handlers(hostnames: list[str], workers_per_host: list[int]) -> list[
 
     Logs for the rank 0 agent and rank 0 worker are redirected to loggers in the launcher process.
     Logs for all hosts/workers are written to files in ``$TORCHRUNX_LOG_DIR`` (named by timestamp,
-    hostname, local_rank).
+    hostname, local_rank). If ``$TORCHRUNX_LOG_DIR = ""`` logs will not be written to files.
     """
-    log_dir = Path(os.environ.get("TORCHRUNX_LOG_DIR", "torchrunx_logs"))
-
-    file_log_level = os.environ.get("TORCHRUNX_LOG_LEVEL", "INFO")
-    if file_log_level.isdigit():
-        file_log_level = int(file_log_level)
-    elif file_log_level in logging._nameToLevel:  # noqa: SLF001
-        file_log_level = logging._nameToLevel[file_log_level]  # noqa: SLF001
-    else:
-        msg = (
-            f"Invalid value for $TORCHRUNX_LOG_LEVEL: {file_log_level}. "
-            f"Should be a positive integer or any of: {', '.join(logging._nameToLevel.keys())}."  # noqa: SLF001
-        )
-        raise ValueError(msg)
-
-    redirect_agent_0_handler = RedirectHandler()
-    redirect_agent_0_handler.addFilter(get_handler_filter(hostnames[0], None))
+    handlers = []
 
-    redirect_worker_0_handler = RedirectHandler()
-    redirect_worker_0_handler.addFilter(get_handler_filter(hostnames[0], 0))
+    # Agent 0 handler
+    handlers.append(RedirectHandler())
+    handlers[-1].addFilter(get_handler_filter(hostnames[0], None))
+
+    # Worker 0 handler
+    handlers.append(RedirectHandler())
+    handlers[-1].addFilter(get_handler_filter(hostnames[0], 0))
+
+    # Log to directory
+
+    log_dir = os.environ.get("TORCHRUNX_LOG_DIR", "torchrunx_logs")
+    if log_dir != "":
+        file_log_level = os.environ.get("TORCHRUNX_LOG_LEVEL", "INFO")
+        if file_log_level.isdigit():
+            file_log_level = int(file_log_level)
+        elif file_log_level in logging._nameToLevel:  # noqa: SLF001
+            file_log_level = logging._nameToLevel[file_log_level]  # noqa: SLF001
+        else:
+            msg = (
+                f"Invalid value for $TORCHRUNX_LOG_LEVEL: {file_log_level}. "
+                f"Should be a positive integer or any of: {', '.join(logging._nameToLevel.keys())}."  # noqa: SLF001
+            )
+            raise ValueError(msg)
+
+        handlers += file_handlers(
+            hostnames, workers_per_host, log_dir=Path(log_dir), log_level=file_log_level
+        )
 
-    return [
-        redirect_agent_0_handler,
-        redirect_worker_0_handler,
-        *file_handlers(hostnames, workers_per_host, log_dir=log_dir, log_level=file_log_level),
-    ]
+    return handlers
diff --git a/uv.lock b/uv.lock
index d4035332..a014be72 100644
--- a/uv.lock
+++ b/uv.lock
@@ -1890,6 +1890,8 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/42/cd/85b422d24ee2096eaf6faa360c95ef9bdb59097d19b9624cebce4dd9bc2a/ruamel.yaml.clib-0.2.14-cp39-cp39-musllinux_1_2_x86_64.whl", hash = "sha256:808c7190a0fe7ae7014c42f73897cf8e9ef14ff3aa533450e51b1e72ec5239ad", size = 725028, upload-time = "2025-09-22T19:51:19.782Z" },
     { url = "https://files.pythonhosted.org/packages/4d/ac/99e6e0ea2584f84f447069d0187fe411e9b5deb7e3ddecda25001cfc7a95/ruamel.yaml.clib-0.2.14-cp39-cp39-win32.whl", hash = "sha256:6d5472f63a31b042aadf5ed28dd3ef0523da49ac17f0463e10fda9c4a2773352", size = 100915, upload-time = "2025-09-22T19:51:21.764Z" },
     { url = "https://files.pythonhosted.org/packages/5d/8d/846e43369658958c99d959bb7774136fff9210f9017d91a4277818ceafbf/ruamel.yaml.clib-0.2.14-cp39-cp39-win_amd64.whl", hash = "sha256:8dd3c2cc49caa7a8d64b67146462aed6723a0495e44bf0aa0a2e94beaa8432f6", size = 118706, upload-time = "2025-09-22T19:51:20.878Z" },
+    { url = "https://files.pythonhosted.org/packages/e7/cd/150fdb96b8fab27fe08d8a59fe67554568727981806e6bc2677a16081ec7/ruamel_yaml_clib-0.2.14-cp314-cp314-win32.whl", hash = "sha256:9b4104bf43ca0cd4e6f738cb86326a3b2f6eef00f417bd1e7efb7bdffe74c539", size = 102394, upload-time = "2025-11-14T21:57:36.703Z" },
+    { url = "https://files.pythonhosted.org/packages/bd/e6/a3fa40084558c7e1dc9546385f22a93949c890a8b2e445b2ba43935f51da/ruamel_yaml_clib-0.2.14-cp314-cp314-win_amd64.whl", hash = "sha256:13997d7d354a9890ea1ec5937a219817464e5cc344805b37671562a401ca3008", size = 122673, upload-time = "2025-11-14T21:57:38.177Z" },
 ]
 
 [[package]]
@@ -2397,7 +2399,7 @@ wheels = [
 
 [[package]]
 name = "torchrunx"
-version = "0.3.3"
+version = "0.3.4"
 source = { editable = "." }
 dependencies = [
     { name = "cloudpickle" },