diff --git a/pyproject.toml b/pyproject.toml
index fb8c4e3d2..4e2c3ae25 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -73,7 +73,7 @@ dynamic = [ "version" ]
 dependencies = [
   "adlfs",
   "aiohttp<4",
-  "asana<6",
+  "asana>=5,<6",
   "click<8.5",
   "clickhouse-connect>=0.8,<2",
   "clickhouse-driver<0.3",
@@ -84,7 +84,7 @@ dependencies = [
   "databricks-sql-connector<5",
   "databricks-sqlalchemy<3",
   "dataclasses-json<0.7",
-  "dlt<1.30",
+  "dlt>=1.22,<1.30",
   "dlt-cratedb<0.2",
   "duckdb<1.6",
   "duckdb-engine<0.18",
@@ -182,7 +182,7 @@ optional-dependencies.test = [
   "pytest-asyncio<2",
   "pytest-cov<8",
   "pytest-xdist[psutil]<4",
-  "testcontainers[mysql,postgres]>=4.9.1,<4.15",
+  "testcontainers[azurite,mysql,postgres]>=4.9.1,<4.15",
   "types-requests<3",
   "verlib2",
 ]
@@ -287,7 +287,9 @@ lint.per-file-ignores."src/omniload/{source,target}/*" = [
   "C417",
   # line-too-long
   "E501",
-  # FIXME: `print` found
+]
+lint.per-file-ignores."src/omniload/{source,target}/**/{client,helpers}.py" = [
+  # `print` found
   "T201",
 ]
 lint.per-file-ignores."tests/*" = [
@@ -299,7 +301,7 @@ lint.per-file-ignores."tests/*" = [
   "C416",
   # line-too-long
   "E501",
-  # Allow use of `assert`, and `print`.
+  # Allow use of `assert`.
   "S101",
   # Possible SQL injection vector through string-based query construction
   "S608",
diff --git a/src/dlt_filesystem/source/impl/remote.py b/src/dlt_filesystem/source/impl/remote.py
index eae0cdf5d..afdd51829 100644
--- a/src/dlt_filesystem/source/impl/remote.py
+++ b/src/dlt_filesystem/source/impl/remote.py
@@ -1,8 +1,10 @@
 import base64
 import json
-from typing import Any, Dict
+from typing import Any, Dict, Type
 from urllib.parse import parse_qs, urlparse
 
+from fsspec import AbstractFileSystem
+
 from dlt_filesystem.error import InvalidBlobTableError, MissingConnectorOption
 from dlt_filesystem.source.base import FilesystemSource
 from dlt_filesystem.source.error import UnsupportedEndpointError
@@ -168,7 +170,7 @@ def dlt_source(self, uri: str, table: str, **kwargs):
         )
 
 
-def _azure_fs(auth: AzureBlobAuth):
+def _azure_kwargs(auth: AzureBlobAuth):
     """Build an ``adlfs.AzureBlobFileSystem`` from resolved Azure auth params.
 
     The ingestr-style short names already match adlfs kwargs, so they pass
@@ -176,7 +178,6 @@ def _azure_fs(auth: AzureBlobAuth):
     imported lazily so the CLI ``--help`` and every non-Azure path never load
     the Azure SDK (matching the s3fs/gcsfs deferred-import convention).
     """
-    import adlfs
 
     kwargs = {"account_name": auth.account_name}
     if auth.account_key is not None:
@@ -191,12 +192,11 @@ def _azure_fs(auth: AzureBlobAuth):
         kwargs["client_secret"] = auth.client_secret
     if auth.account_host is not None:
         kwargs["account_host"] = auth.account_host
-
-    # adlfs annotates its credential params as `str` (defaulting to None) and
-    # mixes in non-str params (blocksize: int, ...), so ty can't check a
-    # conditional str-kwargs splat against the signature. The kwargs are all
-    # valid adlfs credential arguments by construction.
-    return adlfs.AzureBlobFileSystem(**kwargs)  # ty: ignore[invalid-argument-type]
+    if auth.connection_string is not None:
+        kwargs["connection_string"] = auth.connection_string
+    if auth.api_version is not None:
+        kwargs["api_version"] = auth.api_version
+    return kwargs
 
 
 class AzureSource(FilesystemSource):
@@ -208,6 +208,16 @@ class AzureSource(FilesystemSource):
     aliases onto this class.
     """
 
+    @property
+    def fs_class(self) -> Type["AbstractFileSystem"]:
+        # adlfs annotates its credential params as `str` (defaulting to None) and
+        # mixes in non-str params (blocksize: int, ...), so ty can't check a
+        # conditional str-kwargs splat against the signature. The kwargs are all
+        # valid adlfs credential arguments by construction.
+        from adlfs import AzureBlobFileSystem
+
+        return AzureBlobFileSystem
+
     def dlt_source(self, uri: str, table: str, **kwargs):
         if kwargs.get("incremental_key"):
             raise ValueError(
@@ -225,7 +235,8 @@ def dlt_source(self, uri: str, table: str, **kwargs):
 
         bucket_url = f"az://{bucket_name}"
 
-        fs = _azure_fs(auth)
+        kwargs.update(_azure_kwargs(auth))
+        fs = self.fs_class(**kwargs)
 
         try:
             endpoint: str = determine_endpoint(table, path_to_file)
@@ -246,7 +257,7 @@ def dlt_source(self, uri: str, table: str, **kwargs):
                 file_glob=path_to_file,
                 reader_name=endpoint,
                 storage_namespace=(
-                    f"azure:{auth.account_name.lower()}:"
+                    f"azure:{(auth.account_name or '').lower()}:"
                     f"{_endpoint_namespace(auth.account_host, 'azure-public')}"
                 ),
                 filesystem_incremental=kwargs.get("filesystem_incremental", False),
diff --git a/src/dlt_filesystem/target/remote.py b/src/dlt_filesystem/target/remote.py
index 0a667803b..4ef00cd41 100644
--- a/src/dlt_filesystem/target/remote.py
+++ b/src/dlt_filesystem/target/remote.py
@@ -167,9 +167,9 @@ def credentials(self, params: dict) -> FileSystemCredentials:
             # parse_azure_blob_auth guarantees the full triplet here; the
             # per-field `is not None` guards mirror the account-key branch and
             # narrow the parsed optionals to str for ty.
-            sp_credentials = AzureServicePrincipalCredentials(
-                azure_storage_account_name=auth.account_name,
-            )
+            sp_credentials = AzureServicePrincipalCredentials()
+            if auth.account_name is not None:
+                sp_credentials.azure_storage_account_name = auth.account_name
             if auth.tenant_id is not None:
                 sp_credentials.azure_tenant_id = auth.tenant_id
             if auth.client_id is not None:
@@ -180,9 +180,9 @@ def credentials(self, params: dict) -> FileSystemCredentials:
                 sp_credentials.azure_account_host = auth.account_host
             return sp_credentials
 
-        key_credentials = AzureCredentials(
-            azure_storage_account_name=auth.account_name,
-        )
+        key_credentials = AzureCredentials()
+        if auth.account_name is not None:
+            key_credentials.azure_storage_account_name = auth.account_name
         if auth.account_key is not None:
             key_credentials.azure_storage_account_key = auth.account_key
         if auth.sas_token is not None:
diff --git a/src/dlt_filesystem/util/auth.py b/src/dlt_filesystem/util/auth.py
index f1817343e..fd435d93e 100644
--- a/src/dlt_filesystem/util/auth.py
+++ b/src/dlt_filesystem/util/auth.py
@@ -18,13 +18,15 @@ class AzureBlobAuth:
     spec fields.
     """
 
-    account_name: str
+    account_name: Optional[str] = None
     account_key: Optional[str] = None
     sas_token: Optional[str] = None
     tenant_id: Optional[str] = None
     client_id: Optional[str] = None
     client_secret: Optional[str] = None
     account_host: Optional[str] = None
+    connection_string: Optional[str] = None
+    api_version: Optional[str] = None
 
     @property
     def is_service_principal(self) -> bool:
@@ -67,15 +69,24 @@ def parse_azure_blob_auth(params: dict) -> AzureBlobAuth:
     def one(key: str) -> Optional[str]:
         return params.get(key, [None])[0]
 
-    account_name = one("account_name")
-    if account_name is None:
-        raise MissingConnectorOption("account_name", "Azure")
+    connection_string = one("connection_string")
+    api_version = one("api_version")
+
+    if connection_string is not None:
+        return AzureBlobAuth(
+            connection_string=connection_string,
+            api_version=api_version,
+        )
 
+    account_name = one("account_name")
     account_key = one("account_key")
     sas_token = one("sas_token")
     sp_values = {field: one(field) for field in AZURE_SERVICE_PRINCIPAL_FIELDS}
     account_host = one("account_host")
 
+    if account_name is None:
+        raise MissingConnectorOption("account_name", "Azure")
+
     if account_key is not None and sas_token is not None:
         raise ValueError(
             "Conflicting Azure credentials: supply either account_key or "
@@ -109,5 +120,7 @@ def one(key: str) -> Optional[str]:
         account_key=account_key,
         sas_token=sas_token,
         account_host=account_host,
+        connection_string=connection_string,
+        api_version=api_version,
         **sp_values,
     )
diff --git a/src/omniload/source/docebo/adapter.py b/src/omniload/source/docebo/adapter.py
index a3555706b..bb21e4582 100644
--- a/src/omniload/source/docebo/adapter.py
+++ b/src/omniload/source/docebo/adapter.py
@@ -122,7 +122,6 @@ def users() -> Iterator[Dict[str, Any]]:
         },
     )
     def courses() -> Iterator[Dict[str, Any]]:
-        print("running courses transformer")
         """Fetch all courses from Docebo."""
         for courses_batch in client.fetch_courses(page_size=1000):
             for course in courses_batch:
diff --git a/src/omniload/source/github/adapter.py b/src/omniload/source/github/adapter.py
index 042406d4b..89701c7e5 100644
--- a/src/omniload/source/github/adapter.py
+++ b/src/omniload/source/github/adapter.py
@@ -14,6 +14,7 @@
 
 """Source that load github issues, pull requests and reactions for a specific repository via customizable graphql query. Loads events incrementally."""
 
+import logging
 import urllib.parse
 from typing import Iterator, Optional, Sequence, cast
 
@@ -26,6 +27,8 @@
 
 from .helpers import get_reactions_data, get_rest_pages, get_stargazers
 
+logger = logging.getLogger(__name__)
+
 
 @dlt.source(max_table_nesting=0)
 def github_reactions(
@@ -163,7 +166,7 @@ def repo_events(
             # stop requesting pages if the last element was already older than initial value
             # note: incremental will skip those items anyway, we just do not want to use the api limits
             if last_created_at.start_out_of_range:
-                print(
+                logger.info(
                     f"Overlap with previous run created at {last_created_at.initial_value}"
                 )
                 break
diff --git a/tests/dlt_filesystem/test_source_incremental.py b/tests/dlt_filesystem/test_source_incremental.py
index 3a0a4290e..6d327be9f 100644
--- a/tests/dlt_filesystem/test_source_incremental.py
+++ b/tests/dlt_filesystem/test_source_incremental.py
@@ -153,7 +153,7 @@ def test_filesystem_sources_thread_incremental_identity_without_auth_material(tm
 
     with (
         patch("dlt_filesystem.source.adapter.resource_for_reader") as build,
-        patch("dlt_filesystem.source.impl.remote._azure_fs"),
+        patch("adlfs.AzureBlobFileSystem"),
     ):
         AzureSource().dlt_source(
             "az://?account_name=account&account_key=SECRET",
@@ -254,7 +254,7 @@ def test_auth_rotation_does_not_change_incremental_resource_names():
 
     with (
         patch("dlt_filesystem.source.adapter.resource_for_reader") as first_build,
-        patch("dlt_filesystem.source.impl.remote._azure_fs"),
+        patch("adlfs.AzureBlobFileSystem"),
     ):
         AzureSource().dlt_source(
             "az://?account_name=account&account_key=OLD_SECRET",
@@ -262,7 +262,7 @@ def test_auth_rotation_does_not_change_incremental_resource_names():
         )
     with (
         patch("dlt_filesystem.source.adapter.resource_for_reader") as second_build,
-        patch("dlt_filesystem.source.impl.remote._azure_fs"),
+        patch("adlfs.AzureBlobFileSystem"),
     ):
         AzureSource().dlt_source(
             "az://?account_name=account&account_key=NEW_SECRET",
diff --git a/tests/main/filesystem/test_remote_integration.py b/tests/main/filesystem/test_remote_integration.py
new file mode 100644
index 000000000..da3839d6d
--- /dev/null
+++ b/tests/main/filesystem/test_remote_integration.py
@@ -0,0 +1,94 @@
+from pathlib import Path
+from urllib.parse import quote
+
+import pytest
+from azure.storage.blob import BlobServiceClient
+from testcontainers.azurite import AzuriteContainer
+
+from omniload import run_ingest
+from tests.util.container.impl.floci import FlociContainer
+from tests.warehouse.manager import FLOCI_IMAGE
+
+pytestmark = pytest.mark.integration
+
+
+@pytest.fixture(scope="session")
+def floci():
+    """Provide S3 service container for the whole test session."""
+    container = FlociContainer(image=FLOCI_IMAGE)
+    container.start()
+    s3 = container.get_client("s3")  # ty: ignore[invalid-argument-type, missing-argument]
+    s3.create_bucket(Bucket="test-bucket")
+    s3.upload_file(
+        Filename="tests/assets/create_replace.csv",
+        Bucket="test-bucket",
+        Key="path/to/create_replace.csv",
+    )
+    yield container
+    container.stop()
+
+
+@pytest.fixture(scope="session")
+def azurite():
+    """Provide Azure Storage service container for the whole test session."""
+    container = AzuriteContainer()
+    container.start()
+    connection_string = container.get_connection_string()
+    client = BlobServiceClient.from_connection_string(connection_string)
+    client.create_container("test-container")
+    cc = client.get_container_client("test-container")
+    cc.upload_blob(
+        name="path/to/create_replace.csv",
+        data=Path("tests/assets/create_replace.csv").read_text(),
+    )
+    yield container
+    container.stop()
+
+
+def duckdb_table_cardinality(db_path: Path, table_name: str) -> int:
+    """Return number of records in database table."""
+    import duckdb
+
+    db = duckdb.connect(db_path)
+    result = db.execute(f"SELECT * FROM {table_name}").fetchall()
+    count = len(result)
+    db.close()
+    return count
+
+
+def test_s3_source(floci, tmp_path):
+    """S3 source integration test."""
+    s3_endpoint = floci.get_url()
+    db_path = tmp_path / "db.duckdb"
+    result = run_ingest(
+        source_uri=f"s3://?endpoint_url={s3_endpoint}&access_key_id=test&secret_access_key=test",
+        dest_uri=f"duckdb:///{db_path}",
+        source_table="test-bucket/path/to/create_replace.csv",
+        dest_table="testdrive.data",
+    )
+    if result is None:
+        raise RuntimeError("Ingest failed")
+    package = result.asdict()["load_packages"][0]
+    assert package["state"] == "loaded"
+
+    count = duckdb_table_cardinality(db_path, "testdrive.data")
+    assert count == 20, f"Wrong number of records: {count}. Expected: 20"
+
+
+def test_azure_source(azurite, tmp_path):
+    """Azure Storage source integration test."""
+    connection_string = azurite.get_connection_string()
+    db_path = tmp_path / "db.duckdb"
+    result = run_ingest(
+        source_uri=f"az://?connection_string={quote(connection_string)}&api_version=2025-11-05",
+        dest_uri=f"duckdb:///{db_path}",
+        source_table="test-container/path/to/create_replace.csv",
+        dest_table="testdrive.data",
+    )
+    if result is None:
+        raise RuntimeError("Ingest failed")
+    package = result.asdict()["load_packages"][0]
+    assert package["state"] == "loaded"
+
+    count = duckdb_table_cardinality(db_path, "testdrive.data")
+    assert count == 20, f"Wrong number of records: {count}. Expected: 20"