diff --git a/.gitignore b/.gitignore
index 5e08553b..c50d634d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -107,4 +107,4 @@ numcodecs/*.c
 # pixi environments
 .pixi/*
 *.egg-info
-pixi.lock
\ No newline at end of file
+pixi.lock
diff --git a/pyproject.toml b/pyproject.toml
index c925cd17..dafb6d62 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -244,13 +244,20 @@ warn_unused_configs = true
 
 [tool.pixi.project]
 channels = ["conda-forge"]
-platforms = ["linux-64", "osx-arm64", "osx-64", "win-64"]
+platforms = ["linux-64", "linux-aarch64", "osx-arm64", "osx-64", "win-64"]
 
 [tool.pixi.dependencies]
 clang = ">=19.1.7,<20"
 c-compiler = ">=1.9.0,<2"
 cxx-compiler = ">=1.9.0,<2"
 hatch = '==1.14.1'
+pip = ">=25.2,<26"
+setuptools = ">=80.9.0,<81"
+cython = ">=3.1.4,<4"
+numpy = ">=2.3.3,<3"
+
+[tool.pixi.pypi-dependencies]
+numcodecs = { path = ".", editable = true }
 
 [[tool.hatch.envs.test.matrix]]
 python = ["3.11"]
@@ -266,4 +273,4 @@ features = ["test"]
 
 [tool.hatch.envs.test.scripts]
 list-deps = "pip list"
-test-zarr = "pytest numcodecs/tests/test_zarr3.py numcodecs/tests/test_zarr3_import.py"
\ No newline at end of file
+test-zarr = "pytest numcodecs/tests/test_zarr3.py numcodecs/tests/test_zarr3_import.py"