diff --git a/.github/actions/setup-uv-project/action.yml b/.github/actions/setup-uv-project/action.yml
index 7e23075a..bdaa935a 100644
--- a/.github/actions/setup-uv-project/action.yml
+++ b/.github/actions/setup-uv-project/action.yml
@@ -10,4 +10,4 @@ runs:
         enable-cache: true
 
     - shell: bash
-      run: uv sync --frozen --extra dev
+      run: uv sync --extra dev
diff --git a/.github/workflows/installation.yaml b/.github/workflows/installation.yaml
index 0f4fb8a6..3ba3184a 100644
--- a/.github/workflows/installation.yaml
+++ b/.github/workflows/installation.yaml
@@ -29,7 +29,3 @@ jobs:
           python-version: ${{ matrix.python-version }}
 
       - uses: ./.github/actions/setup-uv-project
-
-      - name: Install dependencies
-        run: |
-          pip install -e .
diff --git a/pyproject.toml b/pyproject.toml
index d41dd4a8..119d3418 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -45,9 +45,20 @@ testpaths = [
     "src/pruna/tests",
 ]
 
-[tool.uv]
-index-url = "https://pypi.org/simple/"
-extra-index-url = ["https://prunaai.pythonanywhere.com/simple/"]
+[[tool.uv.index]]
+name = "pypi"
+url = "https://pypi.org/simple"  # regular PyPI
+
+[[tool.uv.index]]
+name = "pruna_internal"
+url = "https://prunaai.pythonanywhere.com/simple/"  # Pruna Pythonanywhere
+default = true # default = True makes this index the lowest prio
+
+[tool.uv.sources]
+gptqmodel = [
+  { index = "pruna_internal", marker = "sys_platform != 'darwin' or platform_machine != 'arm64'"},
+  { index = "pypi", marker = "sys_platform == 'darwin' and platform_machine == 'arm64'"},
+]
 
 [project]
 name = "pruna"
@@ -95,7 +106,7 @@ dependencies = [
     "pynvml",
     "thop",
     "timm",
-    "bitsandbytes",
+    "bitsandbytes; sys_platform != 'darwin' or platform_machine != 'arm64'",
     "optimum-quanto>=0.2.5",
     "optimum",
     "ctranslate2==4.6.0",