diff --git a/.gitignore b/.gitignore
index 135867842..e1736f56b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -55,6 +55,10 @@ dist/
 
 # Windows Application Icon/Resource
 *.syso
+.cache/
+web/frontend/.pnpm-store/
+_tmp_*
+web/frontend/_tmp_*
 
 # Test telegram integration
 cmd/telegram/
diff --git a/Makefile b/Makefile
index c5d691c29..acb258370 100644
--- a/Makefile
+++ b/Makefile
@@ -7,19 +7,43 @@ CMD_DIR=cmd/$(BINARY_NAME)
 MAIN_GO=$(CMD_DIR)/main.go
 EXT=
 
+ifeq ($(OS),Windows_NT)
+	POWERSHELL=powershell -NoProfile -Command
+	WINDOWS_GOARCH_RAW:=$(strip $(shell go env GOARCH 2>NUL))
+endif
+
 # Version
-VERSION?=$(shell git describe --tags --always --dirty 2>/dev/null || echo "dev")
-GIT_COMMIT=$(shell git rev-parse --short=8 HEAD 2>/dev/null || echo "dev")
-BUILD_TIME=$(shell date +%FT%T%z)
-GO_VERSION=$(shell $(GO) version | awk '{print $$3}')
+ifeq ($(OS),Windows_NT)
+	VERSION_RAW:=$(strip $(shell git describe --tags --always --dirty 2>NUL))
+	GIT_COMMIT_RAW:=$(strip $(shell git rev-parse --short=8 HEAD 2>NUL))
+	BUILD_TIME_RAW:=$(strip $(shell powershell -NoProfile -Command "Get-Date -Format 'yyyy-MM-ddTHH:mm:ssK'"))
+	GO_VERSION_RAW:=$(strip $(shell go env GOVERSION 2>NUL))
+else
+	VERSION_RAW:=$(strip $(shell git describe --tags --always --dirty 2>/dev/null))
+	GIT_COMMIT_RAW:=$(strip $(shell git rev-parse --short=8 HEAD 2>/dev/null))
+	BUILD_TIME_RAW:=$(strip $(shell date +%FT%T%z))
+	GO_VERSION_RAW:=$(strip $(shell go env GOVERSION 2>/dev/null))
+endif
+VERSION?=$(if $(VERSION_RAW),$(VERSION_RAW),dev)
+GIT_COMMIT=$(if $(GIT_COMMIT_RAW),$(GIT_COMMIT_RAW),dev)
+BUILD_TIME=$(if $(BUILD_TIME_RAW),$(BUILD_TIME_RAW),dev)
+GO_VERSION=$(if $(GO_VERSION_RAW),$(GO_VERSION_RAW),unknown)
 CONFIG_PKG=github.com/sipeed/picoclaw/pkg/config
 LDFLAGS=-X $(CONFIG_PKG).Version=$(VERSION) -X $(CONFIG_PKG).GitCommit=$(GIT_COMMIT) -X $(CONFIG_PKG).BuildTime=$(BUILD_TIME) -X $(CONFIG_PKG).GoVersion=$(GO_VERSION) -s -w
 
 # Go variables
-GO?=CGO_ENABLED=0 go
+GO?=go
 WEB_GO?=$(GO)
+CGO_ENABLED?=0
 GO_BUILD_TAGS?=goolm,stdjson
 GOFLAGS?=-v -tags $(GO_BUILD_TAGS)
+GOCACHE?=$(CURDIR)/.cache/go-build
+GOMODCACHE?=$(CURDIR)/.cache/go-mod
+GOTOOLCHAIN?=local
+export CGO_ENABLED
+export GOCACHE
+export GOMODCACHE
+export GOTOOLCHAIN
 comma:=,
 empty:=
 space:=$(empty) $(empty)
@@ -73,8 +97,21 @@ BUILTIN_SKILLS_DIR=$(CURDIR)/skills
 LNCMD=ln -sf
 
 # OS detection
-UNAME_S?=$(shell uname -s)
-UNAME_M?=$(shell uname -m)
+ifeq ($(OS),Windows_NT)
+	UNAME_S=Windows
+	ifeq ($(WINDOWS_GOARCH_RAW),amd64)
+		UNAME_M=x86_64
+	else ifeq ($(WINDOWS_GOARCH_RAW),arm64)
+		UNAME_M=arm64
+	else ifeq ($(WINDOWS_GOARCH_RAW),386)
+		UNAME_M=x86
+	else
+		UNAME_M=$(if $(WINDOWS_GOARCH_RAW),$(WINDOWS_GOARCH_RAW),x86_64)
+	endif
+else
+	UNAME_S?=$(shell uname -s)
+	UNAME_M?=$(shell uname -m)
+endif
 
 # Platform-specific settings
 ifeq ($(UNAME_S),Linux)
@@ -122,6 +159,18 @@ else
 
 endif
 
+ifeq ($(OS),Windows_NT)
+	PLATFORM=windows
+	ifeq ($(UNAME_M),x86_64)
+		ARCH?=amd64
+	else ifeq ($(UNAME_M),arm64)
+		ARCH?=arm64
+	else
+		ARCH?=$(UNAME_M)
+	endif
+	EXT=.exe
+endif
+
 BINARY_PATH=$(BUILD_DIR)/$(BINARY_NAME)-$(PLATFORM)-$(ARCH)
 
 # Default target
@@ -130,21 +179,37 @@ all: build
 ## generate: Run generate
 generate:
 	@echo "Run generate..."
+ifeq ($(OS),Windows_NT)
+	@$(POWERSHELL) "if (Test-Path -LiteralPath './$(CMD_DIR)/workspace') { Remove-Item -LiteralPath './$(CMD_DIR)/workspace' -Recurse -Force }"
+else
 	@rm -r ./$(CMD_DIR)/workspace 2>/dev/null || true
+endif
 	@$(GO) generate ./...
 	@echo "Run generate complete"
 
 ## build: Build the picoclaw binary for current platform
 build: generate
 	@echo "Building $(BINARY_NAME)$(EXT) for $(PLATFORM)/$(ARCH)..."
+ifeq ($(OS),Windows_NT)
+	@$(POWERSHELL) "New-Item -ItemType Directory -Force -Path '$(BUILD_DIR)' | Out-Null"
+	@$(GO) build $(GOFLAGS) -ldflags "$(LDFLAGS)" -o $(BINARY_PATH)$(EXT) ./$(CMD_DIR)
+	@$(POWERSHELL) "Copy-Item -LiteralPath '$(BINARY_PATH)$(EXT)' -Destination '$(BUILD_DIR)/$(BINARY_NAME)$(EXT)' -Force"
+else
 	@mkdir -p $(BUILD_DIR)
 	@GOARCH=${ARCH} $(GO) build $(GOFLAGS) -ldflags "$(LDFLAGS)" -o $(BINARY_PATH)$(EXT) ./$(CMD_DIR)
 	@echo "Build complete: $(BINARY_PATH)$(EXT)"
 	@$(LNCMD) $(BINARY_NAME)-$(PLATFORM)-$(ARCH)$(EXT) $(BUILD_DIR)/$(BINARY_NAME)$(EXT)
+endif
+	@echo "Build complete: $(BUILD_DIR)/$(BINARY_NAME)$(EXT)"
 
 ## build-launcher: Build the picoclaw-launcher (web console) binary
 build-launcher:
 	@echo "Building picoclaw-launcher for $(PLATFORM)/$(ARCH)..."
+ifeq ($(OS),Windows_NT)
+	@$(POWERSHELL) "New-Item -ItemType Directory -Force -Path '$(BUILD_DIR)' | Out-Null"
+	@$(MAKE) -C web build PLATFORM="$(PLATFORM)" ARCH="$(ARCH)" EXT="$(EXT)" OUTPUT="$(CURDIR)/$(BUILD_DIR)/picoclaw-launcher-$(PLATFORM)-$(ARCH)$(EXT)" GO_BUILD_TAGS="$(GO_BUILD_TAGS)"
+	@$(POWERSHELL) "Copy-Item -LiteralPath '$(BUILD_DIR)/picoclaw-launcher-$(PLATFORM)-$(ARCH)$(EXT)' -Destination '$(BUILD_DIR)/picoclaw-launcher$(EXT)' -Force"
+else
 	@mkdir -p $(BUILD_DIR)
 	@GOARCH=${ARCH} $(MAKE) -C web build \
 		OUTPUT="$(CURDIR)/$(BUILD_DIR)/picoclaw-launcher-$(PLATFORM)-$(ARCH)$(EXT)" \
@@ -152,6 +217,7 @@ build-launcher:
 		GO_BUILD_TAGS='$(GO_BUILD_TAGS)' \
 		LDFLAGS='$(LDFLAGS)'
 	@$(LNCMD) picoclaw-launcher-$(PLATFORM)-$(ARCH)$(EXT) $(BUILD_DIR)/picoclaw-launcher$(EXT)
+endif
 	@echo "Build complete: $(BUILD_DIR)/picoclaw-launcher$(EXT)"
 
 build-launcher-frontend:
@@ -160,10 +226,16 @@ build-launcher-frontend:
 ## build-launcher-tui: Build the picoclaw-launcher TUI binary
 build-launcher-tui:
 	@echo "Building picoclaw-launcher-tui for $(PLATFORM)/$(ARCH)..."
+ifeq ($(OS),Windows_NT)
+	@$(POWERSHELL) "New-Item -ItemType Directory -Force -Path '$(BUILD_DIR)' | Out-Null"
+	@$(GO) build $(GOFLAGS) -o $(BUILD_DIR)/picoclaw-launcher-tui-$(PLATFORM)-$(ARCH)$(EXT) ./cmd/picoclaw-launcher-tui
+	@$(POWERSHELL) "Copy-Item -LiteralPath '$(BUILD_DIR)/picoclaw-launcher-tui-$(PLATFORM)-$(ARCH)$(EXT)' -Destination '$(BUILD_DIR)/picoclaw-launcher-tui$(EXT)' -Force"
+else
 	@mkdir -p $(BUILD_DIR)
 	@$(GO) build $(GOFLAGS) -o $(BUILD_DIR)/picoclaw-launcher-tui-$(PLATFORM)-$(ARCH) ./cmd/picoclaw-launcher-tui
 	@ln -sf picoclaw-launcher-tui-$(PLATFORM)-$(ARCH) $(BUILD_DIR)/picoclaw-launcher-tui
-	@echo "Build complete: $(BUILD_DIR)/picoclaw-launcher-tui"
+endif
+	@echo "Build complete: $(BUILD_DIR)/picoclaw-launcher-tui$(EXT)"
 
 ## build-whatsapp-native: Build with WhatsApp native (whatsmeow) support; larger binary
 build-whatsapp-native: generate
@@ -290,7 +362,11 @@ uninstall-all:
 ## clean: Remove build artifacts
 clean:
 	@echo "Cleaning build artifacts..."
+ifeq ($(OS),Windows_NT)
+	@$(POWERSHELL) "if (Test-Path -LiteralPath '$(BUILD_DIR)') { Remove-Item -LiteralPath '$(BUILD_DIR)' -Recurse -Force }"
+else
 	@rm -rf $(BUILD_DIR)
+endif
 	@echo "Clean complete"
 
 ## vet: Run go vet for static analysis
diff --git a/cmd/picoclaw/internal/onboard/command.go b/cmd/picoclaw/internal/onboard/command.go
index 4be19b2a5..bf8f4104f 100644
--- a/cmd/picoclaw/internal/onboard/command.go
+++ b/cmd/picoclaw/internal/onboard/command.go
@@ -6,7 +6,7 @@ import (
 	"github.com/spf13/cobra"
 )
 
-//go:generate cp -r ../../../../workspace .
+//go:generate go run ../../../../scripts/copydir.go ../../../../workspace ./workspace
 //go:embed workspace
 var embeddedFiles embed.FS
 
diff --git a/scripts/copydir.go b/scripts/copydir.go
new file mode 100644
index 000000000..74eff6c72
--- /dev/null
+++ b/scripts/copydir.go
@@ -0,0 +1,84 @@
+package main
+
+import (
+	"fmt"
+	"io"
+	"os"
+	"path/filepath"
+)
+
+func main() {
+	if len(os.Args) != 3 {
+		fmt.Fprintf(os.Stderr, "usage: go run scripts/copydir.go <src> <dst>\n")
+		os.Exit(2)
+	}
+
+	src := os.Args[1]
+	dst := os.Args[2]
+
+	if err := os.RemoveAll(dst); err != nil {
+		fmt.Fprintf(os.Stderr, "remove %s: %v\n", dst, err)
+		os.Exit(1)
+	}
+
+	if err := copyTree(src, dst); err != nil {
+		fmt.Fprintf(os.Stderr, "copy %s -> %s: %v\n", src, dst, err)
+		os.Exit(1)
+	}
+}
+
+func copyTree(src, dst string) error {
+	info, err := os.Stat(src)
+	if err != nil {
+		return err
+	}
+	if !info.IsDir() {
+		return fmt.Errorf("source is not a directory: %s", src)
+	}
+
+	return filepath.Walk(src, func(path string, entry os.FileInfo, walkErr error) error {
+		if walkErr != nil {
+			return walkErr
+		}
+
+		rel, err := filepath.Rel(src, path)
+		if err != nil {
+			return err
+		}
+
+		target := dst
+		if rel != "." {
+			target = filepath.Join(dst, rel)
+		}
+
+		if entry.IsDir() {
+			return os.MkdirAll(target, entry.Mode())
+		}
+
+		return copyFile(path, target, entry.Mode())
+	})
+}
+
+func copyFile(src, dst string, mode os.FileMode) error {
+	if err := os.MkdirAll(filepath.Dir(dst), 0o755); err != nil {
+		return err
+	}
+
+	in, err := os.Open(src)
+	if err != nil {
+		return err
+	}
+	defer in.Close()
+
+	out, err := os.OpenFile(dst, os.O_CREATE|os.O_WRONLY|os.O_TRUNC, mode)
+	if err != nil {
+		return err
+	}
+	defer out.Close()
+
+	if _, err := io.Copy(out, in); err != nil {
+		return err
+	}
+
+	return out.Close()
+}
diff --git a/web/Makefile b/web/Makefile
index 4dca810e7..254c439e9 100644
--- a/web/Makefile
+++ b/web/Makefile
@@ -2,15 +2,24 @@
 	build-android-arm64 build-android-bundle
 
 # Go variables
-GO?=CGO_ENABLED=0 go
+GO?=go
 WEB_GO?=$(GO)
+CGO_ENABLED?=0
 GO_BUILD_TAGS?=goolm,stdjson
 GOFLAGS?=-v -tags $(GO_BUILD_TAGS)
+GOCACHE?=$(abspath ../.cache/go-build)
+GOMODCACHE?=$(abspath ../.cache/go-mod)
+GOTOOLCHAIN?=local
+export CGO_ENABLED
+export GOCACHE
+export GOMODCACHE
+export GOTOOLCHAIN
 
 # Build variables
 BUILD_DIR=build
-OUTPUT?=$(BUILD_DIR)/picoclaw-launcher
-OUTPUT_ANDROID_ARM64?=$(BUILD_DIR)/picoclaw-launcher-android-arm64
+EXT=
+OUTPUT?=$(BUILD_DIR)/picoclaw-launcher$(EXT)
+OUTPUT_ANDROID_ARM64?=$(BUILD_DIR)/picoclaw-launcher-android-arm64$(EXT)
 FRONTEND_DIR=frontend
 FRONTEND_INSTALL_STAMP=$(FRONTEND_DIR)/node_modules/.picoclaw-install-stamp
 BACKEND_DIR=backend
@@ -19,18 +28,47 @@ PICOCLAW_BINARY_NAME=picoclaw
 PICOCLAW_BINARY?=$(abspath ../build/$(PICOCLAW_BINARY_NAME))
 LAUNCHER_GUI_LDFLAG=
 
+ifeq ($(OS),Windows_NT)
+	POWERSHELL=powershell -NoProfile -Command
+	WINDOWS_GOARCH_RAW:=$(strip $(shell go env GOARCH 2>NUL))
+endif
+
 # Version
-VERSION?=$(shell git describe --tags --always --dirty 2>/dev/null || echo "dev")
-GIT_COMMIT=$(shell git rev-parse --short=8 HEAD 2>/dev/null || echo "dev")
-BUILD_TIME=$(shell date +%FT%T%z)
-GO_VERSION=$(shell $(WEB_GO) version | awk '{print $$3}')
+ifeq ($(OS),Windows_NT)
+	VERSION_RAW:=$(strip $(shell git describe --tags --always --dirty 2>NUL))
+	GIT_COMMIT_RAW:=$(strip $(shell git rev-parse --short=8 HEAD 2>NUL))
+	BUILD_TIME_RAW:=$(strip $(shell powershell -NoProfile -Command "Get-Date -Format 'yyyy-MM-ddTHH:mm:ssK'"))
+	GO_VERSION_RAW:=$(strip $(shell go env GOVERSION 2>NUL))
+else
+	VERSION_RAW:=$(strip $(shell git describe --tags --always --dirty 2>/dev/null))
+	GIT_COMMIT_RAW:=$(strip $(shell git rev-parse --short=8 HEAD 2>/dev/null))
+	BUILD_TIME_RAW:=$(strip $(shell date +%FT%T%z))
+	GO_VERSION_RAW:=$(strip $(shell go env GOVERSION 2>/dev/null))
+endif
+VERSION?=$(if $(VERSION_RAW),$(VERSION_RAW),dev)
+GIT_COMMIT=$(if $(GIT_COMMIT_RAW),$(GIT_COMMIT_RAW),dev)
+BUILD_TIME=$(if $(BUILD_TIME_RAW),$(BUILD_TIME_RAW),dev)
+GO_VERSION=$(if $(GO_VERSION_RAW),$(GO_VERSION_RAW),unknown)
 CONFIG_PKG=github.com/sipeed/picoclaw/pkg/config
 LDFLAGS=-X $(CONFIG_PKG).Version=$(VERSION) -X $(CONFIG_PKG).GitCommit=$(GIT_COMMIT) -X $(CONFIG_PKG).BuildTime=$(BUILD_TIME) -X $(CONFIG_PKG).GoVersion=$(GO_VERSION) -s -w
 
 
 # OS detection
-UNAME_S:=$(shell uname -s)
-UNAME_M:=$(shell uname -m)
+ifeq ($(OS),Windows_NT)
+	UNAME_S=Windows
+	ifeq ($(WINDOWS_GOARCH_RAW),amd64)
+		UNAME_M=x86_64
+	else ifeq ($(WINDOWS_GOARCH_RAW),arm64)
+		UNAME_M=arm64
+	else ifeq ($(WINDOWS_GOARCH_RAW),386)
+		UNAME_M=x86
+	else
+		UNAME_M=$(if $(WINDOWS_GOARCH_RAW),$(WINDOWS_GOARCH_RAW),x86_64)
+	endif
+else
+	UNAME_S:=$(shell uname -s)
+	UNAME_M:=$(shell uname -m)
+endif
 
 # Platform-specific settings
 ifeq ($(UNAME_S),Linux)
@@ -62,7 +100,14 @@ else ifeq ($(UNAME_S),Darwin)
 	endif
 else ifeq ($(UNAME_S),Windows)
 	PLATFORM=windows
-	ARCH=$(UNAME_M)
+	ifeq ($(UNAME_M),x86_64)
+		ARCH=amd64
+	else ifeq ($(UNAME_M),arm64)
+		ARCH=arm64
+	else
+		ARCH=$(UNAME_M)
+	endif
+	EXT=.exe
 	PICOCLAW_BINARY_NAME=picoclaw.exe
 	LAUNCHER_GUI_LDFLAG=-H=windowsgui
 else
@@ -91,21 +136,36 @@ dev-backend:
 
 # Build frontend and embed into Go binary
 build: build-frontend
+ifeq ($(OS),Windows_NT)
+	@$(POWERSHELL) "New-Item -ItemType Directory -Force -Path (Split-Path -Parent '$(OUTPUT)') | Out-Null"
+else
 	@mkdir -p "$$(dirname "$(OUTPUT)")"
+endif
 	${WEB_GO} build $(GOFLAGS) -ldflags "$(LAUNCHER_LDFLAGS)" -o "$(OUTPUT)" ./$(BACKEND_DIR)/
 
 # Build launcher for Android ARM64 (frontend must already be built)
 build-android-arm64: build-frontend
+ifeq ($(OS),Windows_NT)
+	@$(POWERSHELL) "New-Item -ItemType Directory -Force -Path '$(BUILD_DIR)' | Out-Null"
+else
 	@mkdir -p $(BUILD_DIR)
+endif
 	GOOS=android GOARCH=arm64 $(GO) build -tags stdjson -ldflags "$(LDFLAGS)" -o "$(OUTPUT_ANDROID_ARM64)" ./$(BACKEND_DIR)/
 
 # Build launcher for all Android architectures
 build-android-bundle: build-frontend
+ifeq ($(OS),Windows_NT)
+	@$(POWERSHELL) "New-Item -ItemType Directory -Force -Path '$(BUILD_DIR)' | Out-Null"
+else
 	@mkdir -p $(BUILD_DIR)
+endif
 	GOOS=android GOARCH=arm64 $(GO) build -tags stdjson -ldflags "$(LDFLAGS)" -o "$(BUILD_DIR)/picoclaw-launcher-android-arm64" ./$(BACKEND_DIR)/
 	@echo "All Android launcher builds complete"
 
 build-frontend:
+ifeq ($(OS),Windows_NT)
+	@$(POWERSHELL) "if ((-not (Test-Path -LiteralPath '$(FRONTEND_DIR)/node_modules')) -or (-not (Test-Path -LiteralPath '$(FRONTEND_DIR)/node_modules/.bin/tsc')) -or (-not (Test-Path -LiteralPath '$(FRONTEND_INSTALL_STAMP)')) -or ((Get-Content -LiteralPath '$(FRONTEND_INSTALL_STAMP)' -Raw).Trim() -ne (((Get-FileHash -LiteralPath '$(FRONTEND_DIR)/package.json' -Algorithm SHA256).Hash + ':' + (Get-FileHash -LiteralPath '$(FRONTEND_DIR)/pnpm-lock.yaml' -Algorithm SHA256).Hash)))) { Write-Host 'Installing frontend dependencies...'; Push-Location '$(FRONTEND_DIR)'; try { pnpm install --frozen-lockfile } finally { Pop-Location }; Set-Content -LiteralPath '$(FRONTEND_INSTALL_STAMP)' -Value (((Get-FileHash -LiteralPath '$(FRONTEND_DIR)/package.json' -Algorithm SHA256).Hash + ':' + (Get-FileHash -LiteralPath '$(FRONTEND_DIR)/pnpm-lock.yaml' -Algorithm SHA256).Hash)) -NoNewline }"
+else
 	@expected_stamp="$$(cat $(FRONTEND_DIR)/package.json $(FRONTEND_DIR)/pnpm-lock.yaml | cksum | awk '{print $$1 ":" $$2}')"; \
 	if [ ! -d $(FRONTEND_DIR)/node_modules ] || \
 		[ ! -x $(FRONTEND_DIR)/node_modules/.bin/tsc ] || \
@@ -115,12 +175,17 @@ build-frontend:
 		(cd $(FRONTEND_DIR) && CI=true pnpm install --frozen-lockfile) && \
 		printf '%s\n' "$$expected_stamp" > $(FRONTEND_INSTALL_STAMP); \
 	fi
+endif
 	@echo "Building frontend..."
 	@cd $(FRONTEND_DIR) && pnpm build:backend
 
 build-dev-picoclaw:
 	@echo "Building picoclaw for launcher development..."
+ifeq ($(OS),Windows_NT)
+	@$(POWERSHELL) "New-Item -ItemType Directory -Force -Path (Split-Path -Parent '$(PICOCLAW_BINARY)') | Out-Null"
+else
 	@mkdir -p "$$(dirname "$(PICOCLAW_BINARY)")"
+endif
 	@$(GO) build $(GOFLAGS) -ldflags "$(LDFLAGS)" -o "$(PICOCLAW_BINARY)" ../cmd/picoclaw
 
 # Run all tests
@@ -135,5 +200,10 @@ lint:
 
 # Clean build artifacts
 clean:
+ifeq ($(OS),Windows_NT)
+	@$(POWERSHELL) "$$paths=@('$(FRONTEND_DIR)/dist','$(BACKEND_DIST)','$(BUILD_DIR)'); foreach($$p in $$paths){ if (Test-Path -LiteralPath $$p) { Remove-Item -LiteralPath $$p -Recurse -Force } }"
+	@node $(FRONTEND_DIR)/scripts/ensure-backend-gitkeep.cjs
+else
 	rm -rf $(FRONTEND_DIR)/dist $(BACKEND_DIST) $(BUILD_DIR)
 	node $(FRONTEND_DIR)/scripts/ensure-backend-gitkeep.cjs
+endif