diff --git a/README.md b/README.md
index 7d28c45..71bd26b 100644
--- a/README.md
+++ b/README.md
@@ -84,8 +84,9 @@ B <--> D["Database<br/>(SQLite)"]
 
 2. Run the block explorer:
    ```bash
-   python src/main.py
+   PYTHONPATH=src uv run python -m main
    ```
+By default, this will try to connect to a local Node running on port 18080.
 
 - You can optionally run it via Docker with:
     ```bash
diff --git a/src/__init__.py b/src/constants.py
similarity index 100%
rename from src/__init__.py
rename to src/constants.py
diff --git a/src/core/app.py b/src/core/app.py
index 74a34e4..b9c8b65 100644
--- a/src/core/app.py
+++ b/src/core/app.py
@@ -6,12 +6,12 @@ from pydantic import Field
 from pydantic_settings import BaseSettings, SettingsConfigDict
 from starlette.datastructures import State
 
+from constants import DIR_REPO
 from db.blocks import BlockRepository
 from db.clients import DbClient
 from db.transaction import TransactionRepository
 from node.api.base import NodeApi
 from node.manager.base import NodeManager
-from src import DIR_REPO
 
 ENV_FILEPATH = DIR_REPO.joinpath(".env")
 
@@ -21,8 +21,8 @@ class NBESettings(BaseSettings):
 
     node_compose_filepath: Optional[str] = Field(alias="NBE_NODE_COMPOSE_FILEPATH", default=None)
 
-    node_api: Literal["http", "fake"] = Field(alias="NBE_NODE_API")
-    node_manager: Literal["docker", "noop"] = Field(alias="NBE_NODE_MANAGER")
+    node_api: Literal["http", "fake"] = Field(alias="NBE_NODE_API", default="http")
+    node_manager: Literal["docker", "noop"] = Field(alias="NBE_NODE_MANAGER", default="noop")
 
     node_api_host: str = Field(alias="NBE_NODE_API_HOST", default="127.0.0.1")
     node_api_port: int = Field(alias="NBE_NODE_API_PORT", default=18080)
diff --git a/src/db/clients/sqlite.py b/src/db/clients/sqlite.py
index cd39dd9..ac1fa5c 100644
--- a/src/db/clients/sqlite.py
+++ b/src/db/clients/sqlite.py
@@ -4,8 +4,8 @@ from typing import Iterator
 from sqlalchemy.engine.base import Engine
 from sqlmodel import Session, SQLModel, create_engine
 
+from constants import DIR_REPO
 from db.clients.base import DbClient
-from src import DIR_REPO
 
 SQLITE_DB_PATH = DIR_REPO.joinpath("sqlite.db")
 
diff --git a/src/frontend/__init__.py b/src/frontend/__init__.py
index b3ecee2..c9ab5fd 100644
--- a/src/frontend/__init__.py
+++ b/src/frontend/__init__.py
@@ -1,4 +1,4 @@
-from src import DIR_REPO
+from constants import DIR_REPO
 
 STATIC_DIR = DIR_REPO.joinpath("static")