diff --git a/.github/workflows/publish-pypi.yml b/.github/workflows/publish-pypi.yml
index 3ead5c6..cf9ec31 100644
--- a/.github/workflows/publish-pypi.yml
+++ b/.github/workflows/publish-pypi.yml
@@ -2,8 +2,8 @@ name: Publish / PyPI
 
 on:
   push:
-    branches:
-      - 'main'
+    # branches:
+    #   - 'main'
     tags:
       - 'v*'
     paths-ignore:
diff --git a/golemgpt/actions/http_download.py b/golemgpt/actions/http_download.py
index 2350bd2..8f4251b 100644
--- a/golemgpt/actions/http_download.py
+++ b/golemgpt/actions/http_download.py
@@ -2,7 +2,7 @@
 from time import time
 from typing import Optional, Union
 from golemgpt.utils.misc import workpath
-from golemgpt.utils.http import http_download
+from golemgpt.utils.http import http_download, RequestError
 
 HTTP_REQUEST_PROMPT = """
 Response saved to {out_filename} ({file_size} bytes).
@@ -25,14 +25,17 @@ def http_download_action(
     except ValueError:
         return f"File {out_filename} is outside of working dir."
 
-    response = http_download(
-        method=method, url=url, path=path, headers=headers,
-        json=body if isinstance(body, (dict, list)) else None,
-        body=body if isinstance(body, str) else None,
-    )
+    try:
+        response = http_download(
+            method=method, url=url, path=path, headers=headers,
+            json=body if isinstance(body, (dict, list)) else None,
+            body=body if isinstance(body, str) else None,
+        )
+    except RequestError as error:
+        return f"HTTP request failed: {error}"
 
     if response.status in (401, 403):
-        return "HTTP request failed: maybe ask user for credentials?"
+        return "HTTP request unauthorized: let's ask user for credentials?"
 
     file_size = path.stat().st_size
     return HTTP_REQUEST_PROMPT.format(
diff --git a/golemgpt/golems/general.py b/golemgpt/golems/general.py
index 161a92b..5d8cd1a 100644
--- a/golemgpt/golems/general.py
+++ b/golemgpt/golems/general.py
@@ -1,7 +1,5 @@
 from golemgpt.actions import ALL_KNOWN_ACTIONS
 from golemgpt.codex import BaseCodex
-from golemgpt.codex import ReasonableCodex
-from golemgpt.runners import JustDoRunner
 from golemgpt.settings import Settings
 from golemgpt.memory import BaseMemory
 from golemgpt.utils import console, genkey
@@ -24,8 +22,6 @@
 
 class GeneralGolem:
     cognitron_class = OpenAIToolsCognitron
-    codex_class = ReasonableCodex
-    runner_class = JustDoRunner
 
     def __init__(
         self,
@@ -42,7 +38,8 @@ def __init__(
         self.goals = goals
         self.memory = memory
         self.settings = settings
-        self.runner = self.runner_class(settings)
+        self.codex_class = settings.CODEX_CLASS
+        self.runner = settings.RUNNER_CLASS(settings)
         self.core = self.cognitron()
 
     def __str__(self) -> str:
diff --git a/golemgpt/runners/__init__.py b/golemgpt/runners/__init__.py
index c78a3b5..6d3e9ef 100644
--- a/golemgpt/runners/__init__.py
+++ b/golemgpt/runners/__init__.py
@@ -1,11 +1,5 @@
-from typing import Callable
-from golemgpt.settings import Settings
 from .justdo import JustDoRunner
 
 __all__ = [
     'JustDoRunner',
 ]
-
-
-def default_runner(settings: Settings) -> Callable:
-    return JustDoRunner(settings)
diff --git a/golemgpt/settings.py b/golemgpt/settings.py
index 965fe2a..b323514 100644
--- a/golemgpt/settings.py
+++ b/golemgpt/settings.py
@@ -1,6 +1,6 @@
 from enum import IntEnum
 from pathlib import Path
-from pydantic import BaseSettings
+from pydantic import BaseSettings, PyObject
 
 
 class Verbosity(IntEnum):
@@ -13,6 +13,8 @@ class Verbosity(IntEnum):
 
 
 class Settings(BaseSettings):
+    """General Golem-GPT settings."""
+
     GOLEM_DEBUG: bool = False
     WORKDIR: Path = Path("workdir")
     VERBOSITY_MAIN: Verbosity = Verbosity.NORMAL
@@ -20,7 +22,10 @@ class Settings(BaseSettings):
 
     OPENAI_API_KEY: str = ""
     OPENAI_ORG_ID: str = ""
-    OPENAI_MODEL: str = "gpt-4-turbo"
+    OPENAI_MODEL: str = "gpt-4o-mini"
+
+    CODEX_CLASS: PyObject = "golemgpt.codex.ReasonableCodex"
+    RUNNER_CLASS: PyObject = "golemgpt.runners.JustDoRunner"
 
     BING_SEARCH_API_KEY: str = ""
 
diff --git a/golemgpt/utils/http.py b/golemgpt/utils/http.py
index d8c7fa2..752298d 100644
--- a/golemgpt/utils/http.py
+++ b/golemgpt/utils/http.py
@@ -1,9 +1,14 @@
 from typing import Any, Dict, Optional, Union
 from json import dumps as json_dumps, loads as json_loads
 import urllib3
+import urllib3.exceptions
 
 http = urllib3.PoolManager()
 
+RequestError = urllib3.exceptions.RequestError
+
+DEFAULT_TIMEOUT = 30.0
+
 
 def _do_request(
     method: str, url: str, headers: Optional[Dict[str, str]] = None,
@@ -24,6 +29,7 @@ def http_request_streamed(
     json: Optional[Any] = None, **kwargs: Any
 ) -> urllib3.HTTPResponse:
     """Send an HTTP request without preloading, i.e. streamed."""
+    kwargs.setdefault("timeout", DEFAULT_TIMEOUT)
     return _do_request(
         method=method, url=url, headers=headers, json=json,
         preload_content=False, **kwargs
diff --git a/pyproject.toml b/pyproject.toml
index b76566e..9df3714 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "golem-gpt"
-version = "0.2.1"
+version = "0.2.2-dev1"
 authors = [
   { name="Alexey Kinev", email="rudy@05bit.com" },
 ]