diff --git a/datalad_next/consts/__init__.py b/datalad_next/consts/__init__.py
index 2d2e4876..b847d50e 100644
--- a/datalad_next/consts/__init__.py
+++ b/datalad_next/consts/__init__.py
@@ -16,6 +16,13 @@
   ``True`` if executed on the Windows platform.
 """
 
+__all__ = [
+    'COPY_BUFSIZE',
+    'PRE_INIT_COMMIT_SHA',
+    'on_linux',
+    'on_windows',
+]
+
 # import from "utils", but these really are constants
 from datalad.utils import (
     on_linux,
@@ -29,4 +36,4 @@
     # from PY3.10
     COPY_BUFSIZE = 1024 * 1024 if on_windows else 64 * 1024
 
-from datalad.consts import PRE_INIT_COMMIT_SHA
+from datalad_core.consts import PRE_INIT_COMMIT_SHA
diff --git a/datalad_next/iterable_subprocess/__init__.py b/datalad_next/iterable_subprocess/__init__.py
index 48ea6080..d68881a4 100644
--- a/datalad_next/iterable_subprocess/__init__.py
+++ b/datalad_next/iterable_subprocess/__init__.py
@@ -1,9 +1,9 @@
 """Context manager to communicate with a subprocess using iterables
 
 .. deprecated:: 1.6
-
-   This code has been moved to the datasalad library.
-   Use it from ``datasalad.iterable_subprocess`` instead.
+   This module is deprecated. It has been migrated to the `datasalad library
+   <https://pypi.org/project/datasalad>`__. Imports should be adjusted to
+   ``datasalad.iterable_subprocess``.
 
 This offers a higher level interface to subprocesses than Python's built-in
 subprocess module, and is particularly helpful when data won't fit in memory
@@ -22,4 +22,13 @@
 
 __all__ = ['iterable_subprocess']
 
+import warnings
+
 from datasalad.iterable_subprocess import iterable_subprocess
+
+warnings.warn(
+    '`datalad_next.iterable_subprocess` has been migrated to the datasalad '
+    'library, adjust imports to `datasalad.iterable_subprocess`',
+    DeprecationWarning,
+    stacklevel=1,
+)
diff --git a/datalad_next/itertools/__init__.py b/datalad_next/itertools/__init__.py
index f2ddf002..cef78546 100644
--- a/datalad_next/itertools/__init__.py
+++ b/datalad_next/itertools/__init__.py
@@ -1,9 +1,9 @@
 """Various iterators, e.g., for subprocess pipelining and output processing
 
 .. deprecated:: 1.6
-
-   This code has been moved to the datasalad library.
-   Use it from ``datasalad.itertools`` instead.
+   This module is deprecated. It has been migrated to the `datasalad library
+   <https://pypi.org/project/datasalad>`__. Imports should be adjusted to
+   ``datasalad.itertools``.
 """
 
 __all__ = [
@@ -17,7 +17,10 @@
     'route_out',
 ]
 
+import warnings
+
 from datasalad.itertools import (
+    StoreOnly,
     align_pattern,
     decode_bytes,
     itemize,
@@ -25,5 +28,11 @@
     load_json_with_flag,
     route_in,
     route_out,
-    StoreOnly,
+)
+
+warnings.warn(
+    '`datalad_next.itertools` has been migrated to the datasalad library, '
+    'adjust imports to `datasalad.itertools`',
+    DeprecationWarning,
+    stacklevel=1,
 )
diff --git a/pyproject.toml b/pyproject.toml
index c7310b97..89da4513 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -36,6 +36,7 @@ classifiers = [
 dependencies = [
   "annexremote",
   "datalad >= 0.18.4",
+  "datalad-core",
   "datasalad >= 0.5.0",
   "humanize",
   "more-itertools",