diff --git a/.github/workflows/tests_nix.yml b/.github/workflows/tests_nix.yml
index 6763053..dc654b0 100644
--- a/.github/workflows/tests_nix.yml
+++ b/.github/workflows/tests_nix.yml
@@ -9,7 +9,12 @@ concurrency:
 
 jobs:
     build-and-test:
-        runs-on: [ubuntu-22.04]
+        strategy:
+            fail-fast: false
+            matrix:
+              # macos-11 uses x86-64 machine, macos-14 uses aarch64  
+              os: [ macos-11, macos-14, ubuntu-22.04 ]
+        runs-on: ${{ matrix.os }}
         steps:
             - uses: actions/checkout@v3
 
@@ -22,7 +27,10 @@ jobs:
               with:
                   name: enigmaticsunrise
                   authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
+
+            - name: print architecture
+              run: uname -m
             
             #  the result folder is produced by the previous step
             - name: Run all tests 
-              run: nix develop -c sh -c 'export ROC=roc && ./ci_scripts/all_tests.sh'
\ No newline at end of file
+              run: nix develop -c sh -c 'export ROC=roc && ./ci_scripts/all_tests.sh'
diff --git a/ci_scripts/all_tests.sh b/ci_scripts/all_tests.sh
index fa7b403..269c67c 100755
--- a/ci_scripts/all_tests.sh
+++ b/ci_scripts/all_tests.sh
@@ -69,9 +69,12 @@ expect ci_scripts/expect_scripts/MultipleRocFiles.exp
 $ROC build ./examples/EncodeDecode/main.roc
 expect ci_scripts/expect_scripts/EncodeDecode.exp
 
-$ROC build --lib ./examples/GoPlatform/main.roc --output examples/GoPlatform/platform/libapp.so
-go build -C examples/GoPlatform/platform -buildmode=pie -o dynhost
-$ROC preprocess-host ./examples/GoPlatform/main.roc
+#$ROC build --lib ./examples/GoPlatform/main.roc --output examples/GoPlatform/platform/libapp.so
+#go build -C examples/GoPlatform/platform -buildmode=pie -o dynhost
+#$ROC preprocess-host ./examples/GoPlatform/main.roc
+go build -C examples/GoPlatform/platform -buildmode=c-archive -o libhost.a
+cp examples/GoPlatform/platform/libhost.a examples/GoPlatform/platform/macos-arm64.a
+
 $ROC build --prebuilt-platform ./examples/GoPlatform/main.roc
 
 os_info=$(lsb_release -a 2>/dev/null)
diff --git a/ci_scripts/expect_scripts/DotNetPlatform.exp b/ci_scripts/expect_scripts/DotNetPlatform.exp
index bb7e237..9c4b44d 100644
--- a/ci_scripts/expect_scripts/DotNetPlatform.exp
+++ b/ci_scripts/expect_scripts/DotNetPlatform.exp
@@ -1,7 +1,7 @@
 #!/usr/bin/expect
 
 # uncomment line below for debugging
-# exp_internal 1
+exp_internal 1
 
 set timeout 25
 
diff --git a/examples/GoPlatform/platform/main.go b/examples/GoPlatform/platform/main.go
index 7b2555a..95bce4f 100644
--- a/examples/GoPlatform/platform/main.go
+++ b/examples/GoPlatform/platform/main.go
@@ -1,7 +1,7 @@
 package main
 
 /*
-#cgo LDFLAGS: -L. -lapp
+#cgo CFLAGS: -Wno-main-return-type
 #include "./host.h"
 */
 import "C"
@@ -12,6 +12,7 @@ import (
 	"unsafe"
 )
 
+// export main
 func main() {
 	var str C.struct_RocStr
 	C.roc__mainForHost_1_exposed_generic(&str)
diff --git a/flake.lock b/flake.lock
index d3f8d2d..5ee9fbd 100644
--- a/flake.lock
+++ b/flake.lock
@@ -120,11 +120,11 @@
         "rust-overlay": "rust-overlay"
       },
       "locked": {
-        "lastModified": 1714267049,
-        "narHash": "sha256-8RxtfW9vnFDy5nTGTh0O4afjG6d9GYtsJJDGClwOBHs=",
+        "lastModified": 1714325130,
+        "narHash": "sha256-bLchK1KuwEX5Xm3D5NvmE/7UemqT66KqqBFEglFZdtQ=",
         "owner": "roc-lang",
         "repo": "roc",
-        "rev": "759e26ea13980f209e20507d493d61f040705ea8",
+        "rev": "e424f4bacca17b5e1c2df8ad38d8498c0367d0b0",
         "type": "github"
       },
       "original": {
@@ -177,11 +177,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1714270637,
-        "narHash": "sha256-sq/0YEupY9yoRpg9ft8r2sjoRo84MQipionTuk4w1YI=",
+        "lastModified": 1714356894,
+        "narHash": "sha256-W6Mss7AG6bnFT1BqRApHXvLXBrFOu7V0+EUe9iML30s=",
         "owner": "oxalica",
         "repo": "rust-overlay",
-        "rev": "44f8738f4b9805f7c60118c48f85da835839311a",
+        "rev": "d9b44509b4064f0a3fc9c7c92a603861f52fbedc",
         "type": "github"
       },
       "original": {