diff --git a/build.go b/build.go
deleted file mode 100644
index 5572a83..0000000
--- a/build.go
+++ /dev/null
@@ -1,18 +0,0 @@
-//go:build !dev
-
-//go:generate cargo build -p west-sys --release
-//go:generate cargo build -p west-passthrough --target wasm32-unknown-unknown --release
-//go:generate wasm-tools component new target/wasm32-unknown-unknown/release/west_passthrough.wasm -o lib/passthrough.wasm
-
-package west
-
-// #cgo               LDFLAGS: -lwest
-// #cgo android,arm64 LDFLAGS: -L${SRCDIR}/lib/aarch64-android
-// #cgo darwin,amd64  LDFLAGS: -L${SRCDIR}/lib/x86_64-darwin
-// #cgo darwin,arm64  LDFLAGS: -L${SRCDIR}/lib/aarch64-darwin
-// #cgo linux,amd64   LDFLAGS: -L${SRCDIR}/lib/x86_64-linux
-// #cgo linux,arm64   LDFLAGS: -L${SRCDIR}/lib/aarch64-linux
-// #cgo linux,riscv64 LDFLAGS: -L${SRCDIR}/lib/riscv64-linux
-// #cgo windows,amd64 LDFLAGS: -L${SRCDIR}/lib/x86_64-windows
-// #cgo windows,arm64 LDFLAGS: -L${SRCDIR}/lib/aarch64-windows
-import "C"
diff --git a/build_dev.go b/build_dev.go
deleted file mode 100644
index 44032ae..0000000
--- a/build_dev.go
+++ /dev/null
@@ -1,10 +0,0 @@
-//go:build dev
-
-//go:generate cargo build -p west-sys
-//go:generate cargo build -p west-passthrough --target wasm32-unknown-unknown
-//go:generate wasm-tools component new target/wasm32-unknown-unknown/debug/west_passthrough.wasm -o lib/passthrough.wasm
-
-package west
-
-// #cgo LDFLAGS: -L${SRCDIR}/target/debug -lwest_sys
-import "C"
diff --git a/gen.go b/gen.go
new file mode 100644
index 0000000..9bf662c
--- /dev/null
+++ b/gen.go
@@ -0,0 +1,5 @@
+//go:build !dev
+
+//go:generate go run ./internal/generate
+
+package west
diff --git a/gen_dev.go b/gen_dev.go
new file mode 100644
index 0000000..73ac83d
--- /dev/null
+++ b/gen_dev.go
@@ -0,0 +1,5 @@
+//go:build dev
+
+//go:generate go run -tags=dev ./internal/generate
+
+package west
diff --git a/internal/generate/build.go b/internal/generate/build.go
new file mode 100644
index 0000000..b41eae6
--- /dev/null
+++ b/internal/generate/build.go
@@ -0,0 +1,22 @@
+//go:build !dev
+
+package main
+
+import (
+	"path/filepath"
+)
+
+func TargetPath(target string) string {
+	if target == "" {
+		return filepath.Join(TargetDir, "release")
+	}
+	return filepath.Join(TargetDir, target, "release")
+}
+
+func CargoBuild(target string, args ...string) error {
+	base := []string{"build", "--release"}
+	if target != "" {
+		base = append(base, "--target", target)
+	}
+	return RunCargo(append(base, args...)...)
+}
diff --git a/internal/generate/build_dev.go b/internal/generate/build_dev.go
new file mode 100644
index 0000000..87253e0
--- /dev/null
+++ b/internal/generate/build_dev.go
@@ -0,0 +1,22 @@
+//go:build dev
+
+package main
+
+import (
+	"path/filepath"
+)
+
+func TargetPath(target string) string {
+	if target == "" {
+		return filepath.Join(TargetDir, "debug")
+	}
+	return filepath.Join(TargetDir, target, "debug")
+}
+
+func CargoBuild(target string, args ...string) error {
+	base := []string{"build"}
+	if target != "" {
+		base = append(base, "--target", target)
+	}
+	return RunCargo(append(base, args...)...)
+}
diff --git a/internal/generate/west.go b/internal/generate/west.go
new file mode 100644
index 0000000..019980f
--- /dev/null
+++ b/internal/generate/west.go
@@ -0,0 +1,77 @@
+package main
+
+import (
+	"flag"
+	"log"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"runtime"
+)
+
+var (
+	Root = func() string {
+		_, f, _, _ := runtime.Caller(0)
+		return filepath.Join(f, "..", "..", "..")
+	}()
+
+	TargetDir = filepath.Join(Root, "target")
+	LibDir    = filepath.Join(Root, "lib")
+)
+
+func init() {
+	log.SetFlags(0)
+	flag.Parse()
+}
+
+func Run(cmd *exec.Cmd) error {
+	cmd.Stdout = os.Stdout
+	cmd.Stderr = os.Stderr
+	return cmd.Run()
+}
+
+func RunCargo(args ...string) error {
+	return Run(exec.Command("cargo", args...))
+}
+
+func main() {
+	if err := Run(exec.Command(
+		"go",
+		"run",
+		"github.com/bytecodealliance/wasm-tools-go/cmd/wit-bindgen-go",
+		"generate",
+		"-w",
+		"imports",
+		"-o",
+		"bindings",
+		filepath.Join(Root, "wit"),
+	)); err != nil {
+		log.Fatalf("failed to generate WIT bindings: %s", err)
+	}
+	if err := CargoBuild(CARGO_TARGET, "-p", "west-sys"); err != nil {
+		log.Fatalf("failed to build FFI: %s", err)
+	}
+	libTarget := filepath.Join(LibTargetDir, "libwest.a")
+	if err := os.RemoveAll(libTarget); err != nil {
+		log.Fatalf("failed to remove FFI: %s", err)
+	}
+	if err := os.Link(
+		filepath.Join(TargetPath(CARGO_TARGET), "libwest_sys.a"),
+		libTarget,
+	); err != nil {
+		log.Fatalf("failed to hard link FFI: %s", err)
+	}
+	if err := CargoBuild("wasm32-unknown-unknown", "-p", "west-passthrough"); err != nil {
+		log.Fatalf("failed to build passthrough component: %s", err)
+	}
+	if err := Run(exec.Command(
+		"wasm-tools",
+		"component",
+		"new",
+		filepath.Join(TargetPath("wasm32-unknown-unknown"), "west_passthrough.wasm"),
+		"-o",
+		filepath.Join(LibDir, "passthrough.wasm"),
+	)); err != nil {
+		log.Fatalf("failed to create passthrough component: %s", err)
+	}
+}
diff --git a/internal/generate/west_android_arm64.go b/internal/generate/west_android_arm64.go
new file mode 100644
index 0000000..4efcd4a
--- /dev/null
+++ b/internal/generate/west_android_arm64.go
@@ -0,0 +1,7 @@
+package main
+
+import "path/filepath"
+
+const CARGO_TARGET = "aarch64-linux-android"
+
+var LibTargetDir = filepath.Join(LibDir, "aarch64-android")
diff --git a/internal/generate/west_darwin_amd64.go b/internal/generate/west_darwin_amd64.go
new file mode 100644
index 0000000..13216fc
--- /dev/null
+++ b/internal/generate/west_darwin_amd64.go
@@ -0,0 +1,7 @@
+package main
+
+import "path/filepath"
+
+const CARGO_TARGET = "x86_64-apple-darwin"
+
+var LibTargetDir = filepath.Join(LibDir, "x86_64-darwin")
diff --git a/internal/generate/west_darwin_arm64.go b/internal/generate/west_darwin_arm64.go
new file mode 100644
index 0000000..b59fc68
--- /dev/null
+++ b/internal/generate/west_darwin_arm64.go
@@ -0,0 +1,7 @@
+package main
+
+import "path/filepath"
+
+const CARGO_TARGET = "aarch64-apple-darwin"
+
+var LibTargetDir = filepath.Join(LibDir, "aarch64-darwin")
diff --git a/internal/generate/west_linux_amd64.go b/internal/generate/west_linux_amd64.go
new file mode 100644
index 0000000..944a4b1
--- /dev/null
+++ b/internal/generate/west_linux_amd64.go
@@ -0,0 +1,7 @@
+package main
+
+import "path/filepath"
+
+const CARGO_TARGET = "x86_64-unknown-linux-gnu"
+
+var LibTargetDir = filepath.Join(LibDir, "x86_64-linux")
diff --git a/internal/generate/west_linux_arm64.go b/internal/generate/west_linux_arm64.go
new file mode 100644
index 0000000..79fde29
--- /dev/null
+++ b/internal/generate/west_linux_arm64.go
@@ -0,0 +1,7 @@
+package main
+
+import "path/filepath"
+
+const CARGO_TARGET = "aarch64-unknown-linux-gnu"
+
+var LibTargetDir = filepath.Join(LibDir, "aarch64-linux")
diff --git a/internal/generate/west_linux_riscv64.go b/internal/generate/west_linux_riscv64.go
new file mode 100644
index 0000000..5cb5501
--- /dev/null
+++ b/internal/generate/west_linux_riscv64.go
@@ -0,0 +1,7 @@
+package main
+
+import "path/filepath"
+
+const CARGO_TARGET = "riscv64gc-unknown-linux-gnu"
+
+var LibTargetDir = filepath.Join(LibDir, "riscv64-linux")
diff --git a/internal/generate/west_windows_amd64.go b/internal/generate/west_windows_amd64.go
new file mode 100644
index 0000000..4184e50
--- /dev/null
+++ b/internal/generate/west_windows_amd64.go
@@ -0,0 +1,7 @@
+package main
+
+import "path/filepath"
+
+const CARGO_TARGET = "x86_64-pc-windows-gnu"
+
+var LibTargetDir = filepath.Join(LibDir, "x86_64-windows")
diff --git a/internal/generate/west_windows_arm64.go b/internal/generate/west_windows_arm64.go
new file mode 100644
index 0000000..feafa1a
--- /dev/null
+++ b/internal/generate/west_windows_arm64.go
@@ -0,0 +1,7 @@
+package main
+
+import "path/filepath"
+
+const CARGO_TARGET = "aarch64-pc-windows-gnullvm"
+
+var LibTargetDir = filepath.Join(LibDir, "aarch64-windows")
diff --git a/west.go b/west.go
index 34e37e8..26b2799 100644
--- a/west.go
+++ b/west.go
@@ -1,9 +1,16 @@
-//go:generate go run github.com/bytecodealliance/wasm-tools-go/cmd/wit-bindgen-go generate -w imports -o bindings ./wit
-
 package west
 
-// #cgo !windows LDFLAGS: -lm -ldl -pthread
-// #cgo  windows LDFLAGS: -lws2_32 -lole32 -lntdll -lbcrypt -luserenv
+// #cgo               LDFLAGS: -lwest
+// #cgo android,arm64 LDFLAGS: -L${SRCDIR}/lib/aarch64-android
+// #cgo darwin,amd64  LDFLAGS: -L${SRCDIR}/lib/x86_64-darwin
+// #cgo darwin,arm64  LDFLAGS: -L${SRCDIR}/lib/aarch64-darwin
+// #cgo linux,amd64   LDFLAGS: -L${SRCDIR}/lib/x86_64-linux
+// #cgo linux,arm64   LDFLAGS: -L${SRCDIR}/lib/aarch64-linux
+// #cgo linux,riscv64 LDFLAGS: -L${SRCDIR}/lib/riscv64-linux
+// #cgo windows,amd64 LDFLAGS: -L${SRCDIR}/lib/x86_64-windows
+// #cgo windows,arm64 LDFLAGS: -L${SRCDIR}/lib/aarch64-windows
+// #cgo !windows      LDFLAGS: -lm -ldl -pthread
+// #cgo windows       LDFLAGS: -lws2_32 -lole32 -lntdll -lbcrypt -luserenv
 // #include "./include/west.h"
 // #include <stdlib.h>
 import "C"
diff --git a/west_android_arm64.go b/west_android_arm64.go
deleted file mode 100644
index a12e633..0000000
--- a/west_android_arm64.go
+++ /dev/null
@@ -1,5 +0,0 @@
-//go:build !dev
-
-//go:generate cp ./target/release/libwest_sys.a ./lib/aarch64-android/libwest.a
-
-package west
diff --git a/west_darwin_amd64.go b/west_darwin_amd64.go
deleted file mode 100644
index 1e5f1af..0000000
--- a/west_darwin_amd64.go
+++ /dev/null
@@ -1,5 +0,0 @@
-//go:build !dev
-
-//go:generate cp ./target/release/libwest_sys.a ./lib/x86_64-darwin/libwest.a
-
-package west
diff --git a/west_darwin_arm64.go b/west_darwin_arm64.go
deleted file mode 100644
index cf186ec..0000000
--- a/west_darwin_arm64.go
+++ /dev/null
@@ -1,5 +0,0 @@
-//go:build !dev
-
-//go:generate cp ./target/release/libwest_sys.a ./lib/aarch64-darwin/libwest.a
-
-package west
diff --git a/west_linux_amd64.go b/west_linux_amd64.go
deleted file mode 100644
index c513a93..0000000
--- a/west_linux_amd64.go
+++ /dev/null
@@ -1,5 +0,0 @@
-//go:build !dev
-
-//go:generate cp ./target/release/libwest_sys.a ./lib/x86_64-linux/libwest.a
-
-package west
diff --git a/west_linux_arm64.go b/west_linux_arm64.go
deleted file mode 100644
index 3a24e15..0000000
--- a/west_linux_arm64.go
+++ /dev/null
@@ -1,5 +0,0 @@
-//go:build !dev
-
-//go:generate cp ./target/release/libwest_sys.a ./lib/aarch64-linux/libwest.a
-
-package west
diff --git a/west_linux_riscv64.go b/west_linux_riscv64.go
deleted file mode 100644
index 8bb832d..0000000
--- a/west_linux_riscv64.go
+++ /dev/null
@@ -1,5 +0,0 @@
-//go:build !dev
-
-//go:generate cp ./target/release/libwest_sys.a ./lib/riscv64-linux/libwest.a
-
-package west
diff --git a/west_windows_amd64.go b/west_windows_amd64.go
deleted file mode 100644
index 841669c..0000000
--- a/west_windows_amd64.go
+++ /dev/null
@@ -1,5 +0,0 @@
-//go:build !dev
-
-//go:generate cp ./target/release/libwest_sys.a ./lib/x86_64-windows/libwest.a
-
-package west
diff --git a/west_windows_arm64.go b/west_windows_arm64.go
deleted file mode 100644
index e4385e1..0000000
--- a/west_windows_arm64.go
+++ /dev/null
@@ -1,5 +0,0 @@
-//go:build !dev
-
-//go:generate cp ./target/release/libwest_sys.a ./lib/aarch64-windows/libwest.a
-
-package west