diff --git a/.azure-pipelines/azure-pipelines-osx.yml b/.azure-pipelines/azure-pipelines-osx.yml
index 72832f1..5104c90 100755
--- a/.azure-pipelines/azure-pipelines-osx.yml
+++ b/.azure-pipelines/azure-pipelines-osx.yml
@@ -23,6 +23,21 @@ jobs:
       osx_64_python3.9.____cpythonpython_implcpython:
         CONFIG: osx_64_python3.9.____cpythonpython_implcpython
         UPLOAD_PACKAGES: 'True'
+      osx_arm64_python3.10.____cpython:
+        CONFIG: osx_arm64_python3.10.____cpython
+        UPLOAD_PACKAGES: 'True'
+      osx_arm64_python3.11.____cpython:
+        CONFIG: osx_arm64_python3.11.____cpython
+        UPLOAD_PACKAGES: 'True'
+      osx_arm64_python3.12.____cpython:
+        CONFIG: osx_arm64_python3.12.____cpython
+        UPLOAD_PACKAGES: 'True'
+      osx_arm64_python3.8.____cpython:
+        CONFIG: osx_arm64_python3.8.____cpython
+        UPLOAD_PACKAGES: 'True'
+      osx_arm64_python3.9.____cpython:
+        CONFIG: osx_arm64_python3.9.____cpython
+        UPLOAD_PACKAGES: 'True'
   timeoutInMinutes: 360
   variables: {}
 
diff --git a/.ci_support/linux_64_python3.10.____cpythonpython_implcpython.yaml b/.ci_support/linux_64_python3.10.____cpythonpython_implcpython.yaml
index 6b379e9..cdce7dc 100644
--- a/.ci_support/linux_64_python3.10.____cpythonpython_implcpython.yaml
+++ b/.ci_support/linux_64_python3.10.____cpythonpython_implcpython.yaml
@@ -2,10 +2,14 @@ c_compiler:
 - gcc
 c_compiler_version:
 - '12'
+c_stdlib:
+- sysroot
+c_stdlib_version:
+- '2.17'
 capnproto:
 - 1.0.2
 cdt_name:
-- cos6
+- cos7
 channel_sources:
 - conda-forge
 channel_targets:
@@ -29,5 +33,7 @@ target_platform:
 zip_keys:
 - - c_compiler_version
   - cxx_compiler_version
+- - c_stdlib_version
+  - cdt_name
 - - python
   - python_impl
diff --git a/.ci_support/linux_64_python3.11.____cpythonpython_implcpython.yaml b/.ci_support/linux_64_python3.11.____cpythonpython_implcpython.yaml
index 373b904..5cc1b0a 100644
--- a/.ci_support/linux_64_python3.11.____cpythonpython_implcpython.yaml
+++ b/.ci_support/linux_64_python3.11.____cpythonpython_implcpython.yaml
@@ -2,10 +2,14 @@ c_compiler:
 - gcc
 c_compiler_version:
 - '12'
+c_stdlib:
+- sysroot
+c_stdlib_version:
+- '2.17'
 capnproto:
 - 1.0.2
 cdt_name:
-- cos6
+- cos7
 channel_sources:
 - conda-forge
 channel_targets:
@@ -29,5 +33,7 @@ target_platform:
 zip_keys:
 - - c_compiler_version
   - cxx_compiler_version
+- - c_stdlib_version
+  - cdt_name
 - - python
   - python_impl
diff --git a/.ci_support/linux_64_python3.12.____cpythonpython_implcpython.yaml b/.ci_support/linux_64_python3.12.____cpythonpython_implcpython.yaml
index 672ef02..5661168 100644
--- a/.ci_support/linux_64_python3.12.____cpythonpython_implcpython.yaml
+++ b/.ci_support/linux_64_python3.12.____cpythonpython_implcpython.yaml
@@ -2,10 +2,14 @@ c_compiler:
 - gcc
 c_compiler_version:
 - '12'
+c_stdlib:
+- sysroot
+c_stdlib_version:
+- '2.17'
 capnproto:
 - 1.0.2
 cdt_name:
-- cos6
+- cos7
 channel_sources:
 - conda-forge
 channel_targets:
@@ -29,5 +33,7 @@ target_platform:
 zip_keys:
 - - c_compiler_version
   - cxx_compiler_version
+- - c_stdlib_version
+  - cdt_name
 - - python
   - python_impl
diff --git a/.ci_support/linux_64_python3.8.____cpythonpython_implcpython.yaml b/.ci_support/linux_64_python3.8.____cpythonpython_implcpython.yaml
index 935dddc..c9ad5bf 100644
--- a/.ci_support/linux_64_python3.8.____cpythonpython_implcpython.yaml
+++ b/.ci_support/linux_64_python3.8.____cpythonpython_implcpython.yaml
@@ -2,10 +2,14 @@ c_compiler:
 - gcc
 c_compiler_version:
 - '12'
+c_stdlib:
+- sysroot
+c_stdlib_version:
+- '2.17'
 capnproto:
 - 1.0.2
 cdt_name:
-- cos6
+- cos7
 channel_sources:
 - conda-forge
 channel_targets:
@@ -29,5 +33,7 @@ target_platform:
 zip_keys:
 - - c_compiler_version
   - cxx_compiler_version
+- - c_stdlib_version
+  - cdt_name
 - - python
   - python_impl
diff --git a/.ci_support/linux_64_python3.9.____cpythonpython_implcpython.yaml b/.ci_support/linux_64_python3.9.____cpythonpython_implcpython.yaml
index ec51b5c..4d6c448 100644
--- a/.ci_support/linux_64_python3.9.____cpythonpython_implcpython.yaml
+++ b/.ci_support/linux_64_python3.9.____cpythonpython_implcpython.yaml
@@ -2,10 +2,14 @@ c_compiler:
 - gcc
 c_compiler_version:
 - '12'
+c_stdlib:
+- sysroot
+c_stdlib_version:
+- '2.17'
 capnproto:
 - 1.0.2
 cdt_name:
-- cos6
+- cos7
 channel_sources:
 - conda-forge
 channel_targets:
@@ -29,5 +33,7 @@ target_platform:
 zip_keys:
 - - c_compiler_version
   - cxx_compiler_version
+- - c_stdlib_version
+  - cdt_name
 - - python
   - python_impl
diff --git a/.ci_support/osx_64_python3.10.____cpythonpython_implcpython.yaml b/.ci_support/osx_64_python3.10.____cpythonpython_implcpython.yaml
index 6beb544..183aac5 100644
--- a/.ci_support/osx_64_python3.10.____cpythonpython_implcpython.yaml
+++ b/.ci_support/osx_64_python3.10.____cpythonpython_implcpython.yaml
@@ -6,6 +6,10 @@ c_compiler:
 - clang
 c_compiler_version:
 - '16'
+c_stdlib:
+- macosx_deployment_target
+c_stdlib_version:
+- '10.13'
 capnproto:
 - 1.0.2
 channel_sources:
diff --git a/.ci_support/osx_64_python3.11.____cpythonpython_implcpython.yaml b/.ci_support/osx_64_python3.11.____cpythonpython_implcpython.yaml
index 87f6919..099080d 100644
--- a/.ci_support/osx_64_python3.11.____cpythonpython_implcpython.yaml
+++ b/.ci_support/osx_64_python3.11.____cpythonpython_implcpython.yaml
@@ -6,6 +6,10 @@ c_compiler:
 - clang
 c_compiler_version:
 - '16'
+c_stdlib:
+- macosx_deployment_target
+c_stdlib_version:
+- '10.13'
 capnproto:
 - 1.0.2
 channel_sources:
diff --git a/.ci_support/osx_64_python3.12.____cpythonpython_implcpython.yaml b/.ci_support/osx_64_python3.12.____cpythonpython_implcpython.yaml
index 6238aff..4c5f104 100644
--- a/.ci_support/osx_64_python3.12.____cpythonpython_implcpython.yaml
+++ b/.ci_support/osx_64_python3.12.____cpythonpython_implcpython.yaml
@@ -6,6 +6,10 @@ c_compiler:
 - clang
 c_compiler_version:
 - '16'
+c_stdlib:
+- macosx_deployment_target
+c_stdlib_version:
+- '10.13'
 capnproto:
 - 1.0.2
 channel_sources:
diff --git a/.ci_support/osx_64_python3.8.____cpythonpython_implcpython.yaml b/.ci_support/osx_64_python3.8.____cpythonpython_implcpython.yaml
index 4c92dc4..29cec72 100644
--- a/.ci_support/osx_64_python3.8.____cpythonpython_implcpython.yaml
+++ b/.ci_support/osx_64_python3.8.____cpythonpython_implcpython.yaml
@@ -6,6 +6,10 @@ c_compiler:
 - clang
 c_compiler_version:
 - '16'
+c_stdlib:
+- macosx_deployment_target
+c_stdlib_version:
+- '10.13'
 capnproto:
 - 1.0.2
 channel_sources:
diff --git a/.ci_support/osx_64_python3.9.____cpythonpython_implcpython.yaml b/.ci_support/osx_64_python3.9.____cpythonpython_implcpython.yaml
index be07faa..60dc521 100644
--- a/.ci_support/osx_64_python3.9.____cpythonpython_implcpython.yaml
+++ b/.ci_support/osx_64_python3.9.____cpythonpython_implcpython.yaml
@@ -6,6 +6,10 @@ c_compiler:
 - clang
 c_compiler_version:
 - '16'
+c_stdlib:
+- macosx_deployment_target
+c_stdlib_version:
+- '10.13'
 capnproto:
 - 1.0.2
 channel_sources:
diff --git a/.ci_support/osx_arm64_python3.10.____cpython.yaml b/.ci_support/osx_arm64_python3.10.____cpython.yaml
new file mode 100644
index 0000000..9eac192
--- /dev/null
+++ b/.ci_support/osx_arm64_python3.10.____cpython.yaml
@@ -0,0 +1,39 @@
+MACOSX_DEPLOYMENT_TARGET:
+- '11.0'
+MACOSX_SDK_VERSION:
+- '11.0'
+c_compiler:
+- clang
+c_compiler_version:
+- '16'
+c_stdlib:
+- macosx_deployment_target
+c_stdlib_version:
+- '11.0'
+capnproto:
+- 1.0.2
+channel_sources:
+- conda-forge
+channel_targets:
+- conda-forge main
+cxx_compiler:
+- clangxx
+cxx_compiler_version:
+- '16'
+macos_machine:
+- arm64-apple-darwin20.0.0
+pin_run_as_build:
+  python:
+    min_pin: x.x
+    max_pin: x.x
+python:
+- 3.10.* *_cpython
+python_impl:
+- cpython
+target_platform:
+- osx-arm64
+zip_keys:
+- - c_compiler_version
+  - cxx_compiler_version
+- - python
+  - python_impl
diff --git a/.ci_support/osx_arm64_python3.11.____cpython.yaml b/.ci_support/osx_arm64_python3.11.____cpython.yaml
new file mode 100644
index 0000000..6f060ee
--- /dev/null
+++ b/.ci_support/osx_arm64_python3.11.____cpython.yaml
@@ -0,0 +1,39 @@
+MACOSX_DEPLOYMENT_TARGET:
+- '11.0'
+MACOSX_SDK_VERSION:
+- '11.0'
+c_compiler:
+- clang
+c_compiler_version:
+- '16'
+c_stdlib:
+- macosx_deployment_target
+c_stdlib_version:
+- '11.0'
+capnproto:
+- 1.0.2
+channel_sources:
+- conda-forge
+channel_targets:
+- conda-forge main
+cxx_compiler:
+- clangxx
+cxx_compiler_version:
+- '16'
+macos_machine:
+- arm64-apple-darwin20.0.0
+pin_run_as_build:
+  python:
+    min_pin: x.x
+    max_pin: x.x
+python:
+- 3.11.* *_cpython
+python_impl:
+- cpython
+target_platform:
+- osx-arm64
+zip_keys:
+- - c_compiler_version
+  - cxx_compiler_version
+- - python
+  - python_impl
diff --git a/.ci_support/osx_arm64_python3.12.____cpython.yaml b/.ci_support/osx_arm64_python3.12.____cpython.yaml
new file mode 100644
index 0000000..68da4b5
--- /dev/null
+++ b/.ci_support/osx_arm64_python3.12.____cpython.yaml
@@ -0,0 +1,39 @@
+MACOSX_DEPLOYMENT_TARGET:
+- '11.0'
+MACOSX_SDK_VERSION:
+- '11.0'
+c_compiler:
+- clang
+c_compiler_version:
+- '16'
+c_stdlib:
+- macosx_deployment_target
+c_stdlib_version:
+- '11.0'
+capnproto:
+- 1.0.2
+channel_sources:
+- conda-forge
+channel_targets:
+- conda-forge main
+cxx_compiler:
+- clangxx
+cxx_compiler_version:
+- '16'
+macos_machine:
+- arm64-apple-darwin20.0.0
+pin_run_as_build:
+  python:
+    min_pin: x.x
+    max_pin: x.x
+python:
+- 3.12.* *_cpython
+python_impl:
+- cpython
+target_platform:
+- osx-arm64
+zip_keys:
+- - c_compiler_version
+  - cxx_compiler_version
+- - python
+  - python_impl
diff --git a/.ci_support/osx_arm64_python3.8.____cpython.yaml b/.ci_support/osx_arm64_python3.8.____cpython.yaml
new file mode 100644
index 0000000..99a4de7
--- /dev/null
+++ b/.ci_support/osx_arm64_python3.8.____cpython.yaml
@@ -0,0 +1,39 @@
+MACOSX_DEPLOYMENT_TARGET:
+- '11.0'
+MACOSX_SDK_VERSION:
+- '11.0'
+c_compiler:
+- clang
+c_compiler_version:
+- '16'
+c_stdlib:
+- macosx_deployment_target
+c_stdlib_version:
+- '11.0'
+capnproto:
+- 1.0.2
+channel_sources:
+- conda-forge
+channel_targets:
+- conda-forge main
+cxx_compiler:
+- clangxx
+cxx_compiler_version:
+- '16'
+macos_machine:
+- arm64-apple-darwin20.0.0
+pin_run_as_build:
+  python:
+    min_pin: x.x
+    max_pin: x.x
+python:
+- 3.8.* *_cpython
+python_impl:
+- cpython
+target_platform:
+- osx-arm64
+zip_keys:
+- - c_compiler_version
+  - cxx_compiler_version
+- - python
+  - python_impl
diff --git a/.ci_support/osx_arm64_python3.9.____cpython.yaml b/.ci_support/osx_arm64_python3.9.____cpython.yaml
new file mode 100644
index 0000000..a32a415
--- /dev/null
+++ b/.ci_support/osx_arm64_python3.9.____cpython.yaml
@@ -0,0 +1,39 @@
+MACOSX_DEPLOYMENT_TARGET:
+- '11.0'
+MACOSX_SDK_VERSION:
+- '11.0'
+c_compiler:
+- clang
+c_compiler_version:
+- '16'
+c_stdlib:
+- macosx_deployment_target
+c_stdlib_version:
+- '11.0'
+capnproto:
+- 1.0.2
+channel_sources:
+- conda-forge
+channel_targets:
+- conda-forge main
+cxx_compiler:
+- clangxx
+cxx_compiler_version:
+- '16'
+macos_machine:
+- arm64-apple-darwin20.0.0
+pin_run_as_build:
+  python:
+    min_pin: x.x
+    max_pin: x.x
+python:
+- 3.9.* *_cpython
+python_impl:
+- cpython
+target_platform:
+- osx-arm64
+zip_keys:
+- - c_compiler_version
+  - cxx_compiler_version
+- - python
+  - python_impl
diff --git a/.ci_support/win_64_python3.10.____cpythonpython_implcpython.yaml b/.ci_support/win_64_python3.10.____cpythonpython_implcpython.yaml
index 787f084..c2dcfa9 100644
--- a/.ci_support/win_64_python3.10.____cpythonpython_implcpython.yaml
+++ b/.ci_support/win_64_python3.10.____cpythonpython_implcpython.yaml
@@ -1,5 +1,7 @@
 c_compiler:
 - vs2019
+c_stdlib:
+- vs
 capnproto:
 - 1.0.2
 channel_sources:
diff --git a/.ci_support/win_64_python3.11.____cpythonpython_implcpython.yaml b/.ci_support/win_64_python3.11.____cpythonpython_implcpython.yaml
index bc4f209..42df32f 100644
--- a/.ci_support/win_64_python3.11.____cpythonpython_implcpython.yaml
+++ b/.ci_support/win_64_python3.11.____cpythonpython_implcpython.yaml
@@ -1,5 +1,7 @@
 c_compiler:
 - vs2019
+c_stdlib:
+- vs
 capnproto:
 - 1.0.2
 channel_sources:
diff --git a/.ci_support/win_64_python3.12.____cpythonpython_implcpython.yaml b/.ci_support/win_64_python3.12.____cpythonpython_implcpython.yaml
index cd75882..b8a97a0 100644
--- a/.ci_support/win_64_python3.12.____cpythonpython_implcpython.yaml
+++ b/.ci_support/win_64_python3.12.____cpythonpython_implcpython.yaml
@@ -1,5 +1,7 @@
 c_compiler:
 - vs2019
+c_stdlib:
+- vs
 capnproto:
 - 1.0.2
 channel_sources:
diff --git a/.ci_support/win_64_python3.8.____cpythonpython_implcpython.yaml b/.ci_support/win_64_python3.8.____cpythonpython_implcpython.yaml
index e42ed9d..1e7b49e 100644
--- a/.ci_support/win_64_python3.8.____cpythonpython_implcpython.yaml
+++ b/.ci_support/win_64_python3.8.____cpythonpython_implcpython.yaml
@@ -1,5 +1,7 @@
 c_compiler:
 - vs2019
+c_stdlib:
+- vs
 capnproto:
 - 1.0.2
 channel_sources:
diff --git a/.ci_support/win_64_python3.9.____cpythonpython_implcpython.yaml b/.ci_support/win_64_python3.9.____cpythonpython_implcpython.yaml
index b5e8459..65b5dbf 100644
--- a/.ci_support/win_64_python3.9.____cpythonpython_implcpython.yaml
+++ b/.ci_support/win_64_python3.9.____cpythonpython_implcpython.yaml
@@ -1,5 +1,7 @@
 c_compiler:
 - vs2019
+c_stdlib:
+- vs
 capnproto:
 - 1.0.2
 channel_sources:
diff --git a/.scripts/build_steps.sh b/.scripts/build_steps.sh
index 2f3df6c..97dc8d9 100755
--- a/.scripts/build_steps.sh
+++ b/.scripts/build_steps.sh
@@ -69,6 +69,13 @@ else
         --suppress-variables ${EXTRA_CB_OPTIONS:-} \
         --clobber-file "${CI_SUPPORT}/clobber_${CONFIG}.yaml" \
         --extra-meta flow_run_id="${flow_run_id:-}" remote_url="${remote_url:-}" sha="${sha:-}"
+
+    ( startgroup "Inspecting artifacts" ) 2> /dev/null
+
+    # inspect_artifacts was only added in conda-forge-ci-setup 4.6.0
+    command -v inspect_artifacts >/dev/null 2>&1 && inspect_artifacts || echo "inspect_artifacts needs conda-forge-ci-setup >=4.6.0"
+
+    ( endgroup "Inspecting artifacts" ) 2> /dev/null
     ( startgroup "Validating outputs" ) 2> /dev/null
 
     validate_recipe_outputs "${FEEDSTOCK_NAME}"
diff --git a/.scripts/run_osx_build.sh b/.scripts/run_osx_build.sh
index 165fa51..0c9e992 100755
--- a/.scripts/run_osx_build.sh
+++ b/.scripts/run_osx_build.sh
@@ -81,6 +81,13 @@ else
         --suppress-variables ${EXTRA_CB_OPTIONS:-} \
         --clobber-file ./.ci_support/clobber_${CONFIG}.yaml \
         --extra-meta flow_run_id="$flow_run_id" remote_url="$remote_url" sha="$sha"
+
+    ( startgroup "Inspecting artifacts" ) 2> /dev/null
+
+    # inspect_artifacts was only added in conda-forge-ci-setup 4.6.0
+    command -v inspect_artifacts >/dev/null 2>&1 && inspect_artifacts || echo "inspect_artifacts needs conda-forge-ci-setup >=4.6.0"
+
+    ( endgroup "Inspecting artifacts" ) 2> /dev/null
     ( startgroup "Validating outputs" ) 2> /dev/null
 
     validate_recipe_outputs "${FEEDSTOCK_NAME}"
diff --git a/.scripts/run_win_build.bat b/.scripts/run_win_build.bat
index 7491838..24ef201 100755
--- a/.scripts/run_win_build.bat
+++ b/.scripts/run_win_build.bat
@@ -53,6 +53,11 @@ echo Building recipe
 conda-build.exe "recipe" -m .ci_support\%CONFIG%.yaml --suppress-variables %EXTRA_CB_OPTIONS%
 if !errorlevel! neq 0 exit /b !errorlevel!
 
+call :start_group "Inspecting artifacts"
+:: inspect_artifacts was only added in conda-forge-ci-setup 4.6.0
+WHERE inspect_artifacts >nul 2>nul && inspect_artifacts || echo "inspect_artifacts needs conda-forge-ci-setup >=4.6.0"
+call :end_group
+
 :: Prepare some environment variables for the upload step
 if /i "%CI%" == "github_actions" (
     set "FEEDSTOCK_NAME=%GITHUB_REPOSITORY:*/=%"
diff --git a/README.md b/README.md
index b1e6a1c..7e3de1f 100644
--- a/README.md
+++ b/README.md
@@ -96,6 +96,41 @@ Current build status
                   <img src="https://dev.azure.com/conda-forge/feedstock-builds/_apis/build/status/pycapnp-feedstock?branchName=main&jobName=osx&configuration=osx%20osx_64_python3.9.____cpythonpython_implcpython" alt="variant">
                 </a>
               </td>
+            </tr><tr>
+              <td>osx_arm64_python3.10.____cpython</td>
+              <td>
+                <a href="https://dev.azure.com/conda-forge/feedstock-builds/_build/latest?definitionId=3211&branchName=main">
+                  <img src="https://dev.azure.com/conda-forge/feedstock-builds/_apis/build/status/pycapnp-feedstock?branchName=main&jobName=osx&configuration=osx%20osx_arm64_python3.10.____cpython" alt="variant">
+                </a>
+              </td>
+            </tr><tr>
+              <td>osx_arm64_python3.11.____cpython</td>
+              <td>
+                <a href="https://dev.azure.com/conda-forge/feedstock-builds/_build/latest?definitionId=3211&branchName=main">
+                  <img src="https://dev.azure.com/conda-forge/feedstock-builds/_apis/build/status/pycapnp-feedstock?branchName=main&jobName=osx&configuration=osx%20osx_arm64_python3.11.____cpython" alt="variant">
+                </a>
+              </td>
+            </tr><tr>
+              <td>osx_arm64_python3.12.____cpython</td>
+              <td>
+                <a href="https://dev.azure.com/conda-forge/feedstock-builds/_build/latest?definitionId=3211&branchName=main">
+                  <img src="https://dev.azure.com/conda-forge/feedstock-builds/_apis/build/status/pycapnp-feedstock?branchName=main&jobName=osx&configuration=osx%20osx_arm64_python3.12.____cpython" alt="variant">
+                </a>
+              </td>
+            </tr><tr>
+              <td>osx_arm64_python3.8.____cpython</td>
+              <td>
+                <a href="https://dev.azure.com/conda-forge/feedstock-builds/_build/latest?definitionId=3211&branchName=main">
+                  <img src="https://dev.azure.com/conda-forge/feedstock-builds/_apis/build/status/pycapnp-feedstock?branchName=main&jobName=osx&configuration=osx%20osx_arm64_python3.8.____cpython" alt="variant">
+                </a>
+              </td>
+            </tr><tr>
+              <td>osx_arm64_python3.9.____cpython</td>
+              <td>
+                <a href="https://dev.azure.com/conda-forge/feedstock-builds/_build/latest?definitionId=3211&branchName=main">
+                  <img src="https://dev.azure.com/conda-forge/feedstock-builds/_apis/build/status/pycapnp-feedstock?branchName=main&jobName=osx&configuration=osx%20osx_arm64_python3.9.____cpython" alt="variant">
+                </a>
+              </td>
             </tr><tr>
               <td>win_64_python3.10.____cpythonpython_implcpython</td>
               <td>
diff --git a/conda-forge.yml b/conda-forge.yml
index 2f501ce..022d99c 100644
--- a/conda-forge.yml
+++ b/conda-forge.yml
@@ -4,3 +4,5 @@ github:
   tooling_branch_name: main
 conda_build:
   pkg_format: '2'
+build_platform:
+  osx_arm64: osx_64
diff --git a/recipe/conda_build_config.yaml b/recipe/conda_build_config.yaml
deleted file mode 100644
index 3c2447e..0000000
--- a/recipe/conda_build_config.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
-MACOSX_DEPLOYMENT_TARGET:  # [osx and x86_64]
-  - "10.12"                # [osx and x86_64]
-MACOSX_SDK_VERSION:        # [osx and x86_64]
-  - "10.12"                # [osx and x86_64]
\ No newline at end of file
diff --git a/recipe/meta.yaml b/recipe/meta.yaml
index 0b20684..03195f4 100644
--- a/recipe/meta.yaml
+++ b/recipe/meta.yaml
@@ -14,17 +14,24 @@ source:
 
 build:
   skip: true  # [python_impl == 'pypy']
-  number: 0
+  number: 1
   script:
     - copy /y "{{ LIBRARY_INC }}\capnp\*.capnp" .\capnp\  # [win]
     - cp -f {{ PREFIX }}/include/capnp/*.capnp ./capnp/  # [not win]
-    - pip install . -C force-system-libcapnp=True  # [win]
-    - pip install .  # [not win]
+    # Can't use `pip install` because it doesn't seem there's a way to set this
+    # argument that way.
+    - python setup.py build_ext --force-system-libcapnp install
 
 requirements:
   build:
+    - capnproto                              # [build_platform != target_platform]
+    - python                                 # [build_platform != target_platform]
+    - cross-python_{{ target_platform }}     # [build_platform != target_platform]
+    # <3 because https://github.com/capnproto/pycapnp/issues/319
+    - cython <3                              # [build_platform != target_platform]
     - {{ compiler('c') }}
     - {{ compiler('cxx') }}
+    - {{ stdlib('c') }}
   host:
     - capnproto
     # <3 because https://github.com/capnproto/pycapnp/issues/319
@@ -36,7 +43,6 @@ requirements:
     - python
   run:
     - python
-    - __osx >={{ MACOSX_DEPLOYMENT_TARGET|default("10.9") }}  # [osx and x86_64]
 
 test:
   source_files:
@@ -47,9 +53,9 @@ test:
     - pytest
     - pytest-asyncio
   imports:
-    - capnp
+    - capnp        # [build_platform == target_platform]
   commands:
-    - pytest test
+    - pytest test  # [build_platform == target_platform]
 
 about:
   home: https://github.com/capnproto/pycapnp