diff --git a/.github/.OwlBot.lock.yaml b/.github/.OwlBot.lock.yaml
deleted file mode 100644
index 4a311db02..000000000
--- a/.github/.OwlBot.lock.yaml
+++ /dev/null
@@ -1,17 +0,0 @@
-# Copyright 2025 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-docker:
-  image: gcr.io/cloud-devrel-public-resources/owlbot-python:latest
-  digest: sha256:543e209e7c1c1ffe720eb4db1a3f045a75099304fb19aa11a47dc717b8aae2a9
-# created: 2025-10-09T14:48:42.914384887Z
diff --git a/.github/.OwlBot.yaml b/.github/.OwlBot.yaml
deleted file mode 100644
index c8b40cc7f..000000000
--- a/.github/.OwlBot.yaml
+++ /dev/null
@@ -1,19 +0,0 @@
-# Copyright 2021 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-docker:
-  image: gcr.io/cloud-devrel-public-resources/owlbot-python:latest
-
-begin-after-commit-hash: 7af2cb8b2b725641ac0d07e2f256d453682802e6
-
diff --git a/.github/release-please.yml b/.github/release-please.yml
deleted file mode 100644
index 29601ad46..000000000
--- a/.github/release-please.yml
+++ /dev/null
@@ -1,11 +0,0 @@
-releaseType: python
-handleGHRelease: true
-# NOTE: this section is generated by synthtool.languages.python
-# See https://github.com/googleapis/synthtool/blob/master/synthtool/languages/python.py
-branches:
-- branch: v1
-  handleGHRelease: true
-  releaseType: python
-- branch: v0
-  handleGHRelease: true
-  releaseType: python
diff --git a/.github/release-trigger.yml b/.github/release-trigger.yml
deleted file mode 100644
index 50e8bd300..000000000
--- a/.github/release-trigger.yml
+++ /dev/null
@@ -1,2 +0,0 @@
-enabled: true
-multiScmName: python-api-core
diff --git a/.librarian/config.yaml b/.librarian/config.yaml
new file mode 100644
index 000000000..111f94dd5
--- /dev/null
+++ b/.librarian/config.yaml
@@ -0,0 +1,6 @@
+global_files_allowlist:
+  # Allow the container to read and write the root `CHANGELOG.md`
+  # file during the `release` step to update the latest client library
+  # versions which are hardcoded in the file.
+  - path: "CHANGELOG.md"
+    permissions: "read-write"
diff --git a/.librarian/state.yaml b/.librarian/state.yaml
new file mode 100644
index 000000000..6ac8b0a64
--- /dev/null
+++ b/.librarian/state.yaml
@@ -0,0 +1,10 @@
+image: us-central1-docker.pkg.dev/cloud-sdk-librarian-prod/images-prod/python-librarian-generator:latest
+libraries:
+  - id: google-api-core
+    version: 2.28.1
+    apis: []
+    source_roots:
+      - .
+    preserve_regex: []
+    remove_regex: []
+    tag_format: v{version}