diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 66398d4..5b5481c 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -1,5 +1,29 @@
 # Contributing To Emerging-Optimizers
 
+## Dependency
+
+Use [abseil-py](https://github.com/abseil/abseil-py/tree/main)'s **logging**, **testing** and **flags** instead of Python's own **logging**, **unittest** and **argparse**.
+
+## Coding Style
+
+We generally follow [Google's style guides](https://google.github.io/styleguide/) , with some exceptions:
+
+* Line length extended to 120 for Python and 100 for C++ code.
+* Common use in PyTorch, which are prohibited by Google style, are allowed, including but not limited to:
+  * Import function, class, not just module
+  * Some special variable name, `x`, `dX`, etc.
+* Allow common capitalized naming in Triton code.
+
+Although common, **mixed case is not allowed** in any code.
+
+Run pre-commit at local before submitting merge request. You can also read [.pre-commit-config.yaml]( .pre-commit-config.yaml) to understand what are being forced. The **flake8** and **mypy** settings are inherited from PyTorch. 
+
+## Test
+
+All tests should be placed under [tests](tests). We aim for 100% test coverage for this tiny project.
+
+We use [abseil-py](https://github.com/abseil/abseil-py/tree/main) **testing** because it is easier to launch multi process than alternatives.
+
 ## Signing Your Work
 
 * We require that all contributors "sign-off" on their commits. This certifies that the contribution is your original work, or you have rights to submit it under the same license, or a compatible license.
@@ -20,9 +44,9 @@
   ```
   Developer Certificate of Origin
   Version 1.1
-
+  
   Copyright (C) 2004, 2006 The Linux Foundation and its contributors.
-
+  
   Everyone is permitted to copy and distribute verbatim copies of this
   license document, but changing it is not allowed.
 
diff --git a/README.md b/README.md
index 3cdcd93..9113ce7 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,9 @@
 # Emerging Optimizers
+
+## Overview
+
+Emerging Optimizers is a research project focused on understanding and optimizing the algorithmic behavior of Shampoo-class optimizers (Shampoo, SOAP, Muon, etc.) and their implications for performance and GPU systems in large language model training.
+
+## User guide
+
+Coming soon.
diff --git a/tests/ci/test_placeholder.py b/tests/ci/test_placeholder.py
deleted file mode 100644
index 0b0ca80..0000000
--- a/tests/ci/test_placeholder.py
+++ /dev/null
@@ -1,18 +0,0 @@
-# Copyright (c) 2025, NVIDIA CORPORATION.  All rights reserved.
-#
-# 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.
-
-
-def test_placeholder():
-    """Should be True"""
-    assert True is True
diff --git a/tests/conftest.py b/tests/conftest.py
deleted file mode 100644
index e90f858..0000000
--- a/tests/conftest.py
+++ /dev/null
@@ -1,91 +0,0 @@
-# Copyright (c) 2025, NVIDIA CORPORATION.  All rights reserved.
-#
-# 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.
-import os
-
-import pytest
-
-
-def pytest_addoption(parser):
-    """
-    Additional command-line arguments passed to pytest.
-    For now:
-        --cpu: use CPU during testing (DEFAULT: GPU)
-        --use_local_test_data: use local test data/skip downloading from URL/GitHub (DEFAULT: False)
-    """
-    parser.addoption(
-        "--cpu", action="store_true", help="pass that argument to use CPU during testing (DEFAULT: False = GPU)"
-    )
-    parser.addoption(
-        "--with_downloads",
-        action="store_true",
-        help="pass this argument to active tests which download models from the cloud.",
-    )
-
-
-@pytest.fixture
-def device(request):
-    """Simple fixture returning string denoting the device [CPU | GPU]"""
-    if request.config.getoption("--cpu"):
-        return "CPU"
-    else:
-        return "GPU"
-
-
-@pytest.fixture(autouse=True)
-def run_only_on_device_fixture(request, device):
-    """Fixture to skip tests based on the device"""
-    if request.node.get_closest_marker("run_only_on"):
-        if request.node.get_closest_marker("run_only_on").args[0] != device:
-            pytest.skip("skipped on this device: {}".format(device))
-
-
-@pytest.fixture(autouse=True)
-def downloads_weights(request, device):
-    """Fixture to validate if the with_downloads flag is passed if necessary"""
-    if request.node.get_closest_marker("with_downloads"):
-        if not request.config.getoption("--with_downloads"):
-            pytest.skip(
-                "To run this test, pass --with_downloads option. It will download (and cache) models from cloud."
-            )
-
-
-@pytest.fixture(autouse=True)
-def reset_env_vars():
-    """Reset environment variables"""
-    # Store the original environment variables before the test
-    original_env = dict(os.environ)
-
-    # Run the test
-    yield
-
-    # After the test, restore the original environment
-    os.environ.clear()
-    os.environ.update(original_env)
-
-
-def pytest_configure(config):
-    """
-    Initial configuration of conftest.
-    The function checks if test_data.tar.gz is present in tests/.data.
-    If so, compares its size with github's test_data.tar.gz.
-    If file absent or sizes not equal, function downloads the archive from github and unpacks it.
-    """
-    config.addinivalue_line(
-        "markers",
-        "run_only_on(device): runs the test only on a given device [CPU | GPU]",
-    )
-    config.addinivalue_line(
-        "markers",
-        "with_downloads: runs the test using data present in tests/.data",
-    )