diff --git a/spindle/engines/microvm/agent.go b/spindle/engines/microvm/agent.go
index ed757810..cfec1aac 100644
--- a/spindle/engines/microvm/agent.go
+++ b/spindle/engines/microvm/agent.go
@@ -1,3 +1,5 @@
+//go:build linux
+
 package microvm
 
 import (
diff --git a/spindle/engines/microvm/args.go b/spindle/engines/microvm/args.go
index 05b370af..0b4f1c42 100644
--- a/spindle/engines/microvm/args.go
+++ b/spindle/engines/microvm/args.go
@@ -1,3 +1,5 @@
+//go:build linux
+
 package microvm
 
 import (
diff --git a/spindle/engines/microvm/budget.go b/spindle/engines/microvm/budget.go
index 20798344..27383266 100644
--- a/spindle/engines/microvm/budget.go
+++ b/spindle/engines/microvm/budget.go
@@ -1,3 +1,5 @@
+//go:build linux
+
 package microvm
 
 import (
diff --git a/spindle/engines/microvm/cgroup.go b/spindle/engines/microvm/cgroup.go
index 4e255327..e77ec677 100644
--- a/spindle/engines/microvm/cgroup.go
+++ b/spindle/engines/microvm/cgroup.go
@@ -1,3 +1,5 @@
+//go:build linux
+
 package microvm
 
 import (
diff --git a/spindle/engines/microvm/cgroup_oom_test.go b/spindle/engines/microvm/cgroup_oom_test.go
index 5754b96a..07857377 100644
--- a/spindle/engines/microvm/cgroup_oom_test.go
+++ b/spindle/engines/microvm/cgroup_oom_test.go
@@ -1,3 +1,5 @@
+//go:build linux
+
 package microvm
 
 import (
diff --git a/spindle/engines/microvm/cgroup_test.go b/spindle/engines/microvm/cgroup_test.go
index 8bd2d30c..58be19b1 100644
--- a/spindle/engines/microvm/cgroup_test.go
+++ b/spindle/engines/microvm/cgroup_test.go
@@ -1,3 +1,5 @@
+//go:build linux
+
 package microvm
 
 import (
diff --git a/spindle/engines/microvm/dns_proxy.go b/spindle/engines/microvm/dns_proxy.go
index 16e6183a..e6b99a0c 100644
--- a/spindle/engines/microvm/dns_proxy.go
+++ b/spindle/engines/microvm/dns_proxy.go
@@ -1,3 +1,5 @@
+//go:build linux
+
 package microvm
 
 import (
diff --git a/spindle/engines/microvm/dns_proxy_test.go b/spindle/engines/microvm/dns_proxy_test.go
index a38b0f4e..cb1de34c 100644
--- a/spindle/engines/microvm/dns_proxy_test.go
+++ b/spindle/engines/microvm/dns_proxy_test.go
@@ -1,3 +1,5 @@
+//go:build linux
+
 package microvm
 
 import (
diff --git a/spindle/engines/microvm/engine.go b/spindle/engines/microvm/engine.go
index 3136ecc0..021e8558 100644
--- a/spindle/engines/microvm/engine.go
+++ b/spindle/engines/microvm/engine.go
@@ -1,3 +1,5 @@
+//go:build linux
+
 package microvm
 
 import (
diff --git a/spindle/engines/microvm/engine_test.go b/spindle/engines/microvm/engine_test.go
index 13465cd5..5a5aac7b 100644
--- a/spindle/engines/microvm/engine_test.go
+++ b/spindle/engines/microvm/engine_test.go
@@ -1,3 +1,5 @@
+//go:build linux
+
 package microvm
 
 import (
diff --git a/spindle/engines/microvm/image.go b/spindle/engines/microvm/image.go
index efe3b6be..7c37152d 100644
--- a/spindle/engines/microvm/image.go
+++ b/spindle/engines/microvm/image.go
@@ -1,3 +1,5 @@
+//go:build linux
+
 package microvm
 
 import (
diff --git a/spindle/engines/microvm/image_test.go b/spindle/engines/microvm/image_test.go
index 3c5f66f0..1114937c 100644
--- a/spindle/engines/microvm/image_test.go
+++ b/spindle/engines/microvm/image_test.go
@@ -1,3 +1,5 @@
+//go:build linux
+
 package microvm
 
 import (
diff --git a/spindle/engines/microvm/models.go b/spindle/engines/microvm/models.go
index 02f3c096..f80772c2 100644
--- a/spindle/engines/microvm/models.go
+++ b/spindle/engines/microvm/models.go
@@ -1,3 +1,5 @@
+//go:build linux
+
 package microvm
 
 import (
diff --git a/spindle/engines/microvm/models_test.go b/spindle/engines/microvm/models_test.go
index b103e4f5..256fe1ec 100644
--- a/spindle/engines/microvm/models_test.go
+++ b/spindle/engines/microvm/models_test.go
@@ -1,3 +1,5 @@
+//go:build linux
+
 package microvm
 
 import (
diff --git a/spindle/engines/microvm/networking.go b/spindle/engines/microvm/networking.go
index 30f12dfe..81597cbe 100644
--- a/spindle/engines/microvm/networking.go
+++ b/spindle/engines/microvm/networking.go
@@ -1,3 +1,5 @@
+//go:build linux
+
 package microvm
 
 import (
diff --git a/spindle/engines/microvm/nixos_toplevel_cache.go b/spindle/engines/microvm/nixos_toplevel_cache.go
index 8333a65c..c5f8f784 100644
--- a/spindle/engines/microvm/nixos_toplevel_cache.go
+++ b/spindle/engines/microvm/nixos_toplevel_cache.go
@@ -1,3 +1,5 @@
+//go:build linux
+
 package microvm
 
 import (
diff --git a/spindle/engines/microvm/qemu.go b/spindle/engines/microvm/qemu.go
index a0080bf1..95e45db1 100644
--- a/spindle/engines/microvm/qemu.go
+++ b/spindle/engines/microvm/qemu.go
@@ -1,3 +1,5 @@
+//go:build linux
+
 package microvm
 
 import (
diff --git a/spindle/engines/microvm/read_cache_proxy.go b/spindle/engines/microvm/read_cache_proxy.go
index 83b01cf2..55781458 100644
--- a/spindle/engines/microvm/read_cache_proxy.go
+++ b/spindle/engines/microvm/read_cache_proxy.go
@@ -1,3 +1,5 @@
+//go:build linux
+
 package microvm
 
 import (
diff --git a/spindle/engines/microvm/read_cache_proxy_test.go b/spindle/engines/microvm/read_cache_proxy_test.go
index 9ec84325..b10dac2a 100644
--- a/spindle/engines/microvm/read_cache_proxy_test.go
+++ b/spindle/engines/microvm/read_cache_proxy_test.go
@@ -1,3 +1,5 @@
+//go:build linux
+
 package microvm
 
 import (
diff --git a/spindle/engines/microvm/runner.go b/spindle/engines/microvm/runner.go
index c08e3d84..4ec712d1 100644
--- a/spindle/engines/microvm/runner.go
+++ b/spindle/engines/microvm/runner.go
@@ -1,3 +1,5 @@
+//go:build linux
+
 package microvm
 
 import (
diff --git a/spindle/engines/microvm/upload_cache_http.go b/spindle/engines/microvm/upload_cache_http.go
index 0310ef09..b479616f 100644
--- a/spindle/engines/microvm/upload_cache_http.go
+++ b/spindle/engines/microvm/upload_cache_http.go
@@ -1,3 +1,5 @@
+//go:build linux
+
 package microvm
 
 import (
diff --git a/spindle/engines/microvm/upload_cache_narinfo.go b/spindle/engines/microvm/upload_cache_narinfo.go
index 26645fcf..775d20bc 100644
--- a/spindle/engines/microvm/upload_cache_narinfo.go
+++ b/spindle/engines/microvm/upload_cache_narinfo.go
@@ -1,3 +1,5 @@
+//go:build linux
+
 package microvm
 
 import (
diff --git a/spindle/engines/microvm/upload_cache_nix_store.go b/spindle/engines/microvm/upload_cache_nix_store.go
index 70b9adde..8ec22c47 100644
--- a/spindle/engines/microvm/upload_cache_nix_store.go
+++ b/spindle/engines/microvm/upload_cache_nix_store.go
@@ -1,3 +1,5 @@
+//go:build linux
+
 package microvm
 
 import (
diff --git a/spindle/engines/microvm/upload_cache_nix_store_test.go b/spindle/engines/microvm/upload_cache_nix_store_test.go
index 413fb66d..bf9d4af7 100644
--- a/spindle/engines/microvm/upload_cache_nix_store_test.go
+++ b/spindle/engines/microvm/upload_cache_nix_store_test.go
@@ -1,3 +1,5 @@
+//go:build linux
+
 package microvm
 
 import (
diff --git a/spindle/engines/microvm/upload_cache_proxy.go b/spindle/engines/microvm/upload_cache_proxy.go
index cc87062f..cc4bf32e 100644
--- a/spindle/engines/microvm/upload_cache_proxy.go
+++ b/spindle/engines/microvm/upload_cache_proxy.go
@@ -1,3 +1,5 @@
+//go:build linux
+
 package microvm
 
 import (
diff --git a/spindle/engines/microvm/upload_cache_proxy_test.go b/spindle/engines/microvm/upload_cache_proxy_test.go
index ef4e6405..5697f12f 100644
--- a/spindle/engines/microvm/upload_cache_proxy_test.go
+++ b/spindle/engines/microvm/upload_cache_proxy_test.go
@@ -1,3 +1,5 @@
+//go:build linux
+
 package microvm
 
 import (
diff --git a/spindle/engines/microvm/vm.go b/spindle/engines/microvm/vm.go
index 0ae4db49..537dfba8 100644
--- a/spindle/engines/microvm/vm.go
+++ b/spindle/engines/microvm/vm.go
@@ -1,3 +1,5 @@
+//go:build linux
+
 package microvm
 
 import (
diff --git a/spindle/engines/microvm/vm_test.go b/spindle/engines/microvm/vm_test.go
index 65812e2c..b2fa6bd4 100644
--- a/spindle/engines/microvm/vm_test.go
+++ b/spindle/engines/microvm/vm_test.go
@@ -1,3 +1,5 @@
+//go:build linux
+
 package microvm
 
 import (