diff --git a/sample.datasets.toml b/sample.datasets.toml
index ccc84a0d..e0dda57e 100644
--- a/sample.datasets.toml
+++ b/sample.datasets.toml
@@ -1,10 +1,10 @@
 [warehouses.pg_warehouse]
 db_type = "postgresql"
-username = "your_username"
-password = "your_password"
+database = "warehouse"
+user = "warehouse_user"
+password = "warehouse_password"
 host = "localhost"
-port = 5432
-database = "companies_db"
+port = 7654
 
 [datasets.companies_house]
 database = "pg_warehouse"
diff --git a/src/matchbox/admin.py b/src/matchbox/admin.py
index 725eb1da..2a93d292 100644
--- a/src/matchbox/admin.py
+++ b/src/matchbox/admin.py
@@ -5,19 +5,26 @@
 import tomli
 from dotenv import find_dotenv, load_dotenv
 
+from matchbox.server import MatchboxDBAdapter, inject_backend
 from matchbox.server.base import (
-    MatchboxSettings,
     Source,
 )
 from matchbox.server.models import SourceWarehouse
 
+logger = logging.getLogger("mb_logic")
+
 dotenv_path = find_dotenv(usecwd=True)
 load_dotenv(dotenv_path)
 
 
+@inject_backend
+def index_dataset(backend: MatchboxDBAdapter, dataset: Source) -> None:
+    backend.index(dataset=dataset)
+
+
 def load_datasets_from_config(datasets: Path) -> dict[str, Source]:
     """Loads datasets for indexing from the datasets settings TOML file."""
-    config = tomli.load(datasets)
+    config = tomli.loads(datasets.read_text())
 
     warehouses: dict[str, SourceWarehouse] = {}
     for alias, warehouse_config in config["warehouses"].items():
@@ -36,12 +43,14 @@ def load_datasets_from_config(datasets: Path) -> dict[str, Source]:
 @click.argument(
     "datasets", type=click.Path(exists=True, dir_okay=False, path_type=Path)
 )
-def make_cmf(datasets: Path) -> None:
-    backend = MatchboxSettings().backend
+@inject_backend
+def make_matchbox(backend: MatchboxDBAdapter, datasets: Path) -> None:
     dataset_dict = load_datasets_from_config(datasets=datasets)
 
     for dataset in dataset_dict.values():
-        backend.index(dataset=dataset, engine=dataset.database.engine)
+        logger.info(f"Indexing {dataset}")
+        index_dataset(dataset)
+        logger.info(f"Finished indexing {dataset}")
 
 
 if __name__ == "__main__":
@@ -49,4 +58,4 @@ def make_cmf(datasets: Path) -> None:
         level=logging.INFO,
         format="%(asctime)s - %(name)s - %(levelname)s - %(message)s",
     )
-    make_cmf()
+    make_matchbox()
diff --git a/src/matchbox/server/base.py b/src/matchbox/server/base.py
index 9e17a81d..9b472f47 100644
--- a/src/matchbox/server/base.py
+++ b/src/matchbox/server/base.py
@@ -14,6 +14,7 @@
     cast,
 )
 
+from dotenv import find_dotenv, load_dotenv
 from pydantic import Field
 from pydantic_settings import BaseSettings, SettingsConfigDict
 from rustworkx import PyDiGraph
@@ -36,6 +37,9 @@
     Results = Any
 
 
+dotenv_path = find_dotenv(usecwd=True)
+load_dotenv(dotenv_path, override=True)
+
 R = TypeVar("R")
 P = ParamSpec("P")
 
diff --git a/src/matchbox/server/models.py b/src/matchbox/server/models.py
index 4c63ff11..62603a00 100644
--- a/src/matchbox/server/models.py
+++ b/src/matchbox/server/models.py
@@ -155,7 +155,8 @@ def _select(
     def to_hash(self) -> bytes:
         """Generate a unique hash based on the table's columns and datatypes."""
         table = self.to_table()
-        schema_representation = ",".join(
+
+        schema_representation = f"{str(self)}: " + ",".join(
             f"{col.name}:{str(col.type)}" for col in table.columns
         )
         return HASH_FUNC(schema_representation.encode("utf-8")).digest()