diff --git a/config_supported.go b/config_supported.go
index b56058b4..ae2085cc 100644
--- a/config_supported.go
+++ b/config_supported.go
@@ -2,9 +2,6 @@
 
 package wazero
 
-// CompilerSupported returns whether the compiler is supported in this environment.
-const CompilerSupported = true
-
 // NewRuntimeConfig returns NewRuntimeConfigCompiler
 func NewRuntimeConfig() RuntimeConfig {
 	return NewRuntimeConfigCompiler()
diff --git a/config_unsupported.go b/config_unsupported.go
index 0454cd3d..d88e9ac4 100644
--- a/config_unsupported.go
+++ b/config_unsupported.go
@@ -2,9 +2,6 @@
 
 package wazero
 
-// CompilerSupported returns whether the compiler is supported in this environment.
-const CompilerSupported = false
-
 // NewRuntimeConfig returns NewRuntimeConfigInterpreter
 func NewRuntimeConfig() RuntimeConfig {
 	return NewRuntimeConfigInterpreter()
diff --git a/internal/engine/compiler/arch.go b/internal/engine/compiler/arch.go
index 4acbb378..e216231c 100644
--- a/internal/engine/compiler/arch.go
+++ b/internal/engine/compiler/arch.go
@@ -6,6 +6,9 @@ var (
 	newArchContext func() archContext
 )
 
+// IsSupported returns whether the compiler is supported on this architecture.
+const IsSupported = isSupported
+
 // nativecall is used by callEngine.execWasmFunction and the entrypoint to enter the compiled native code.
 // codeSegment is the pointer to the initial instruction of the compiled native code.
 // ce is "*callEngine" as uintptr.
diff --git a/internal/engine/compiler/arch_amd64.go b/internal/engine/compiler/arch_amd64.go
index 1454e2e0..c2ead961 100644
--- a/internal/engine/compiler/arch_amd64.go
+++ b/internal/engine/compiler/arch_amd64.go
@@ -4,6 +4,8 @@ import (
 	"github.com/tetratelabs/wazero/internal/wazeroir"
 )
 
+const isSupported = true
+
 // init initializes variables for the amd64 architecture
 func init() {
 	newArchContext = newArchContextImpl
diff --git a/internal/engine/compiler/arch_arm64.go b/internal/engine/compiler/arch_arm64.go
index 0ace96ef..da2e317b 100644
--- a/internal/engine/compiler/arch_arm64.go
+++ b/internal/engine/compiler/arch_arm64.go
@@ -6,6 +6,8 @@ import (
 	"github.com/tetratelabs/wazero/internal/wazeroir"
 )
 
+const isSupported = true
+
 // init initializes variables for the arm64 architecture
 func init() {
 	newArchContext = newArchContextImpl
diff --git a/internal/engine/compiler/arch_other.go b/internal/engine/compiler/arch_other.go
index 962ee3d9..bede0e6f 100644
--- a/internal/engine/compiler/arch_other.go
+++ b/internal/engine/compiler/arch_other.go
@@ -9,6 +9,8 @@ import (
 	"github.com/tetratelabs/wazero/internal/wazeroir"
 )
 
+const isSupported = false
+
 // archContext is empty on an unsupported architecture.
 type archContext struct{}
 
diff --git a/internal/integration_test/engine/adhoc_test.go b/internal/integration_test/engine/adhoc_test.go
index 63a654f8..f787f9d8 100644
--- a/internal/integration_test/engine/adhoc_test.go
+++ b/internal/integration_test/engine/adhoc_test.go
@@ -11,6 +11,7 @@ import (
 
 	"github.com/tetratelabs/wazero"
 	"github.com/tetratelabs/wazero/api"
+	"github.com/tetratelabs/wazero/internal/engine/compiler"
 	"github.com/tetratelabs/wazero/internal/testing/require"
 	"github.com/tetratelabs/wazero/internal/wasm"
 	"github.com/tetratelabs/wazero/sys"
@@ -46,7 +47,7 @@ var tests = map[string]func(t *testing.T, r wazero.Runtime){
 }
 
 func TestEngineCompiler(t *testing.T) {
-	if !wazero.CompilerSupported {
+	if !compiler.IsSupported {
 		t.Skip()
 	}
 	runAllTests(t, tests, wazero.NewRuntimeConfigCompiler())
diff --git a/internal/integration_test/engine/hammer_test.go b/internal/integration_test/engine/hammer_test.go
index afe6ef76..3cdac903 100644
--- a/internal/integration_test/engine/hammer_test.go
+++ b/internal/integration_test/engine/hammer_test.go
@@ -6,6 +6,7 @@ import (
 
 	"github.com/tetratelabs/wazero"
 	"github.com/tetratelabs/wazero/api"
+	"github.com/tetratelabs/wazero/internal/engine/compiler"
 	"github.com/tetratelabs/wazero/internal/testing/hammer"
 	"github.com/tetratelabs/wazero/internal/testing/require"
 	"github.com/tetratelabs/wazero/sys"
@@ -18,7 +19,7 @@ var hammers = map[string]func(t *testing.T, r wazero.Runtime){
 }
 
 func TestEngineCompiler_hammer(t *testing.T) {
-	if !wazero.CompilerSupported {
+	if !compiler.IsSupported {
 		t.Skip()
 	}
 	runAllTests(t, hammers, wazero.NewRuntimeConfigCompiler())
diff --git a/internal/modgen/modgen.go b/internal/testing/modgen/modgen.go
similarity index 100%
rename from internal/modgen/modgen.go
rename to internal/testing/modgen/modgen.go
diff --git a/internal/modgen/modgen_test.go b/internal/testing/modgen/modgen_test.go
similarity index 100%
rename from internal/modgen/modgen_test.go
rename to internal/testing/modgen/modgen_test.go
diff --git a/wasm.go b/wasm.go
index 168896b4..4eb9fd46 100644
--- a/wasm.go
+++ b/wasm.go
@@ -116,6 +116,7 @@ type Runtime interface {
 	api.Closer
 }
 
+// NewRuntime returns a runtime with a configuration assigned by NewRuntimeConfig.
 func NewRuntime() Runtime {
 	return NewRuntimeWithConfig(NewRuntimeConfig())
 }