diff --git a/_examples/basic-auth-proxy/Makefile b/_examples/basic-auth-proxy/Makefile
index 019492c2..3140ac9c 100644
--- a/_examples/basic-auth-proxy/Makefile
+++ b/_examples/basic-auth-proxy/Makefile
@@ -4,8 +4,8 @@ dev:
 
 .PHONY: build
 build:
-	go run ../../cmd/workers-assets-gen
-	tinygo build -o ./build/app.wasm -target wasm -no-debug ./...
+	go run ../../cmd/workers-assets-gen -mode=go
+	GOOS=js GOARCH=wasm go build -o ./build/app.wasm .
 
 .PHONY: deploy
 deploy:
diff --git a/_examples/basic-auth-proxy/README.md b/_examples/basic-auth-proxy/README.md
index 95c51ed4..d02b4194 100644
--- a/_examples/basic-auth-proxy/README.md
+++ b/_examples/basic-auth-proxy/README.md
@@ -17,12 +17,12 @@
 This project requires these tools to be installed globally.
 
 * wrangler
-* tinygo
+* Go 1.24.0 or later
 
 ### Commands
 
 ```
 make dev     # run dev server
 make build   # build Go Wasm binary
-make deploy # deploy worker
+make deploy  # deploy worker
 ```
diff --git a/_examples/basic-auth-proxy/main.go b/_examples/basic-auth-proxy/main.go
index 53529547..a9643d37 100644
--- a/_examples/basic-auth-proxy/main.go
+++ b/_examples/basic-auth-proxy/main.go
@@ -14,6 +14,10 @@ const (
 	userPassword = "password"
 )
 
+func canHaveBody(method string) bool {
+	return method != "GET" && method != "HEAD" && method != ""
+}
+
 func authenticate(req *http.Request) bool {
 	username, password, ok := req.BasicAuth()
 	return ok && username == userName && password == userPassword
@@ -33,7 +37,16 @@ func handleRequest(w http.ResponseWriter, req *http.Request) {
 	u := *req.URL
 	u.Scheme = "https"
 	u.Host = "syum.ai"
-	r, err := fetch.NewRequest(req.Context(), req.Method, u.String(), req.Body)
+
+	// disallow setting body for GET and HEAD
+	// see https://github.com/whatwg/fetch/issues/551
+	var r *fetch.Request
+	var err error
+	if canHaveBody(req.Method) {
+		r, err = fetch.NewRequest(req.Context(), req.Method, u.String(), req.Body)
+	} else {
+		r, err = fetch.NewRequest(req.Context(), req.Method, u.String(), nil)
+	}
 	if err != nil {
 		handleError(w, http.StatusInternalServerError, "Internal Error")
 		log.Printf("failed to initialize proxy request: %v\n", err)
diff --git a/_examples/cache/Makefile b/_examples/cache/Makefile
index a73fac2e..3140ac9c 100644
--- a/_examples/cache/Makefile
+++ b/_examples/cache/Makefile
@@ -4,9 +4,8 @@ dev:
 
 .PHONY: build
 build:
-	go run ../../cmd/workers-assets-gen
-	#tinygo build -o ./build/app.wasm -target wasm -no-debug ./...
-	tinygo build -o ./build/app.wasm -target wasm -no-debug ./...
+	go run ../../cmd/workers-assets-gen -mode=go
+	GOOS=js GOARCH=wasm go build -o ./build/app.wasm .
 
 .PHONY: deploy
 deploy:
diff --git a/_examples/cache/README.md b/_examples/cache/README.md
index c5e1e29d..8930ecf1 100644
--- a/_examples/cache/README.md
+++ b/_examples/cache/README.md
@@ -9,12 +9,12 @@ The Cache API allows fine grained control of reading and writing from the Cloudf
 This project requires these tools to be installed globally.
 
 * wrangler
-* tinygo
+* Go 1.24.0 or later
 
 #### Commands
 
 ```
 make dev     # run dev server
 make build   # build Go Wasm binary
-make deploy # deploy worker
+make deploy  # deploy worker
 ```
\ No newline at end of file
diff --git a/_examples/cache/main.go b/_examples/cache/main.go
index 8f7c9fdc..13f2f588 100644
--- a/_examples/cache/main.go
+++ b/_examples/cache/main.go
@@ -12,6 +12,10 @@ import (
 	"github.com/syumai/workers/cloudflare/cache"
 )
 
+func canHaveBody(method string) bool {
+	return method != "GET" && method != "HEAD" && method != ""
+}
+
 type responseWriter struct {
 	http.ResponseWriter
 	StatusCode int
@@ -40,6 +44,10 @@ func handler(w http.ResponseWriter, req *http.Request) {
 	rw := responseWriter{ResponseWriter: w}
 	c := cache.New()
 
+	if !canHaveBody(req.Method) {
+		req.Body = nil
+	}
+
 	// Find cache
 	res, _ := c.Match(req, nil)
 	if res != nil {
diff --git a/_examples/cron/Makefile b/_examples/cron/Makefile
index eaa93565..d0414390 100644
--- a/_examples/cron/Makefile
+++ b/_examples/cron/Makefile
@@ -4,8 +4,8 @@ dev:
 
 .PHONY: build
 build:
-	go run ../../cmd/workers-assets-gen
-	tinygo build -o ./build/app.wasm -target wasm -no-debug ./...
+	go run ../../cmd/workers-assets-gen -mode=go
+	GOOS=js GOARCH=wasm go build -o ./build/app.wasm .
 
 .PHONY: deploy
 deploy:
diff --git a/_examples/cron/README.md b/_examples/cron/README.md
index b31da2f7..e4f79ecc 100644
--- a/_examples/cron/README.md
+++ b/_examples/cron/README.md
@@ -9,14 +9,14 @@
 This project requires these tools to be installed globally.
 
 * wrangler
-* tinygo
+* Go 1.24.0 or later
 
 ### Commands
 
 ```
 make dev     # run dev server
 make build   # build Go Wasm binary
-make deploy # deploy worker
+make deploy  # deploy worker
 ```
 
 #### Testing cron schedule
diff --git a/_examples/d1-blog-server/Makefile b/_examples/d1-blog-server/Makefile
index 1e41aac6..76cebc20 100644
--- a/_examples/d1-blog-server/Makefile
+++ b/_examples/d1-blog-server/Makefile
@@ -4,16 +4,20 @@ dev:
 
 .PHONY: build
 build:
-	go run ../../cmd/workers-assets-gen
-	tinygo build -o ./build/app.wasm -target wasm -no-debug ./main.go
+	go run ../../cmd/workers-assets-gen -mode=go
+	GOOS=js GOARCH=wasm go build -o ./build/app.wasm .
 
 .PHONY: deploy
 deploy:
 	wrangler deploy
 
+.PHONY: create-db
+create-db:
+	wrangler d1 create d1-blog-server
+
 .PHONY: init-db
 init-db:
-	wrangler d1 execute d1-blog-server --file=./schema.sql
+	wrangler d1 execute d1-blog-server --remote --file=./schema.sql
 
 .PHONY: init-db-local
 init-db-local:
diff --git a/_examples/d1-blog-server/README.md b/_examples/d1-blog-server/README.md
index e4ce37b4..eb4f27fb 100644
--- a/_examples/d1-blog-server/README.md
+++ b/_examples/d1-blog-server/README.md
@@ -59,7 +59,7 @@ $ curl 'https://d1-blog-server.syumai.workers.dev/articles'
 This project requires these tools to be installed globally.
 
 * wrangler
-* tinygo
+* Go 1.24.0 or later
 
 ### Commands
 
@@ -70,8 +70,10 @@ make dev           # run dev server
 make build         # build Go Wasm binary
 
 # production
-make init-db # initialize production DB (remove all rows)
-make deploy # deploy worker
+make create-db # create production DB
+# copy binding to wrangler.toml
+make init-db   # initialize production DB (remove all rows)
+make deploy    # deploy worker
 ```
 
-* Notice: This example uses raw SQL commands to initialize the DB for simplicity, but in general you should use `wrangler d1 migraions` for your application.
+* Notice: This example uses raw SQL commands to initialize the DB for simplicity, but in general you should use `wrangler d1 migrations` for your application.
diff --git a/_examples/d1-blog-server/main.go b/_examples/d1-blog-server/main.go
index abbcaeed..105b4a8e 100644
--- a/_examples/d1-blog-server/main.go
+++ b/_examples/d1-blog-server/main.go
@@ -11,7 +11,7 @@ import (
 )
 
 func main() {
-	db, err := sql.Open("d1", "BlogDB")
+	db, err := sql.Open("d1", "DB")
 	if err != nil {
 		log.Fatalf("error opening DB: %s", err.Error())
 	}
diff --git a/_examples/d1-blog-server/wrangler.toml b/_examples/d1-blog-server/wrangler.toml
index e3cda000..6f1fc204 100644
--- a/_examples/d1-blog-server/wrangler.toml
+++ b/_examples/d1-blog-server/wrangler.toml
@@ -4,9 +4,3 @@ compatibility_date = "2024-04-15"
 
 [build]
 command = "make build"
-
-[[ d1_databases ]]
-binding = "BlogDB"
-database_name = "d1-blog-server"
-database_id = "c6d5e4c0-3134-42fa-834c-812b24fea3cf"
-preview_database_id = "BlogDB"
diff --git a/_examples/durable-object-counter/Makefile b/_examples/durable-object-counter/Makefile
index 019492c2..ec9f8f92 100644
--- a/_examples/durable-object-counter/Makefile
+++ b/_examples/durable-object-counter/Makefile
@@ -4,8 +4,8 @@ dev:
 
 .PHONY: build
 build:
-	go run ../../cmd/workers-assets-gen
-	tinygo build -o ./build/app.wasm -target wasm -no-debug ./...
+	go run ../../cmd/workers-assets-gen -mode=go
+	GOOS=js GOARCH=wasm go build -o ./build/app.wasm ./...
 
 .PHONY: deploy
 deploy:
diff --git a/_examples/durable-object-counter/README.md b/_examples/durable-object-counter/README.md
index a16e490f..c9fe7d54 100644
--- a/_examples/durable-object-counter/README.md
+++ b/_examples/durable-object-counter/README.md
@@ -21,14 +21,14 @@ After `make deploy` the trigger is `http://durable-object-counter.YOUR-DOMAIN.wo
 This project requires these tools to be installed globally.
 
 * wrangler
-* tinygo
+* Go 1.24.0 or later
 
 ### Commands
 
 ```
 make dev     # run dev server
 make build   # build Go Wasm binary
-make deploy # deploy worker
+make deploy  # deploy worker
 ```
 
 ## Author
diff --git a/_examples/durable-object-counter/main.go b/_examples/durable-object-counter/main.go
index c5ccb410..417d89bb 100644
--- a/_examples/durable-object-counter/main.go
+++ b/_examples/durable-object-counter/main.go
@@ -12,6 +12,10 @@ func main() {
 	workers.Serve(&MyHandler{})
 }
 
+func canHaveBody(method string) bool {
+	return method != "GET" && method != "HEAD" && method != ""
+}
+
 type MyHandler struct{}
 
 func (_ *MyHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
@@ -26,6 +30,10 @@ func (_ *MyHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
 		panic(err)
 	}
 
+	if !canHaveBody(req.Method) {
+		req.Body = nil
+	}
+
 	res, err := obj.Fetch(req)
 	if err != nil {
 		panic(err)
diff --git a/_examples/durable-object-counter/wrangler.toml b/_examples/durable-object-counter/wrangler.toml
index 9116eee0..9b6ac428 100644
--- a/_examples/durable-object-counter/wrangler.toml
+++ b/_examples/durable-object-counter/wrangler.toml
@@ -13,4 +13,4 @@ bindings = [{name = "COUNTER", class_name = "Counter"}]
 
 [[migrations]]
 tag = "v1" # Should be unique for each entry
-new_classes = ["Counter"]
\ No newline at end of file
+new_sqlite_classes = ["Counter"]
\ No newline at end of file
diff --git a/_examples/env/Makefile b/_examples/env/Makefile
index 019492c2..ec9f8f92 100644
--- a/_examples/env/Makefile
+++ b/_examples/env/Makefile
@@ -4,8 +4,8 @@ dev:
 
 .PHONY: build
 build:
-	go run ../../cmd/workers-assets-gen
-	tinygo build -o ./build/app.wasm -target wasm -no-debug ./...
+	go run ../../cmd/workers-assets-gen -mode=go
+	GOOS=js GOARCH=wasm go build -o ./build/app.wasm ./...
 
 .PHONY: deploy
 deploy:
diff --git a/_examples/env/README.md b/_examples/env/README.md
index ad79b973..280a0379 100644
--- a/_examples/env/README.md
+++ b/_examples/env/README.md
@@ -13,12 +13,12 @@
 This project requires these tools to be installed globally.
 
 * wrangler
-* tinygo
+* Go 1.24.0 or later
 
 ### Commands
 
 ```
 make dev     # run dev server
 make build   # build Go Wasm binary
-make deploy # deploy worker
+make deploy  # deploy worker
 ```
diff --git a/_examples/fetch-event/Makefile b/_examples/fetch-event/Makefile
index 019492c2..ec9f8f92 100644
--- a/_examples/fetch-event/Makefile
+++ b/_examples/fetch-event/Makefile
@@ -4,8 +4,8 @@ dev:
 
 .PHONY: build
 build:
-	go run ../../cmd/workers-assets-gen
-	tinygo build -o ./build/app.wasm -target wasm -no-debug ./...
+	go run ../../cmd/workers-assets-gen -mode=go
+	GOOS=js GOARCH=wasm go build -o ./build/app.wasm ./...
 
 .PHONY: deploy
 deploy:
diff --git a/_examples/fetch-event/README.md b/_examples/fetch-event/README.md
index f20fd692..32c13a6a 100644
--- a/_examples/fetch-event/README.md
+++ b/_examples/fetch-event/README.md
@@ -37,12 +37,12 @@ The workers is executed if the URL matches `sub.example.com/*`.
 This project requires these tools to be installed globally.
 
 * wrangler
-* tinygo
+* Go 1.24.0 or later
 
 #### Commands
 
 ```
 make dev     # run dev server
 make build   # build Go Wasm binary
-make deploy # deploy worker
+make deploy  # deploy worker
 ```
\ No newline at end of file
diff --git a/_examples/fetch-event/wrangler.toml b/_examples/fetch-event/wrangler.toml
index 0d0e6da6..03d073ef 100644
--- a/_examples/fetch-event/wrangler.toml
+++ b/_examples/fetch-event/wrangler.toml
@@ -2,9 +2,10 @@ name = "fetch-event"
 main = "./build/worker.mjs"
 compatibility_date = "2023-02-24"
 
-routes = [
-    { pattern = "example.com/*", zone_name = "example.com" }
-]
+# setup route and uncomment
+# routes = [
+#     { pattern = "example.com/*", zone_name = "example.com" }
+# ]
 
 [build]
 command = "make build"
diff --git a/_examples/fetch/Makefile b/_examples/fetch/Makefile
index 019492c2..ec9f8f92 100644
--- a/_examples/fetch/Makefile
+++ b/_examples/fetch/Makefile
@@ -4,8 +4,8 @@ dev:
 
 .PHONY: build
 build:
-	go run ../../cmd/workers-assets-gen
-	tinygo build -o ./build/app.wasm -target wasm -no-debug ./...
+	go run ../../cmd/workers-assets-gen -mode=go
+	GOOS=js GOARCH=wasm go build -o ./build/app.wasm ./...
 
 .PHONY: deploy
 deploy:
diff --git a/_examples/fetch/README.md b/_examples/fetch/README.md
index cd532e5b..6275cd44 100644
--- a/_examples/fetch/README.md
+++ b/_examples/fetch/README.md
@@ -10,12 +10,11 @@
 This project requires these tools to be installed globally.
 
 * wrangler
-* tinygo
-
+* Go 1.24.0 or later
 ### Commands
 
 ```
 make dev     # run dev server
 make build   # build Go Wasm binary
-make deploy # deploy worker
+make deploy  # deploy worker
 ```
\ No newline at end of file
diff --git a/_examples/incoming/Makefile b/_examples/incoming/Makefile
index 019492c2..ec9f8f92 100644
--- a/_examples/incoming/Makefile
+++ b/_examples/incoming/Makefile
@@ -4,8 +4,8 @@ dev:
 
 .PHONY: build
 build:
-	go run ../../cmd/workers-assets-gen
-	tinygo build -o ./build/app.wasm -target wasm -no-debug ./...
+	go run ../../cmd/workers-assets-gen -mode=go
+	GOOS=js GOARCH=wasm go build -o ./build/app.wasm ./...
 
 .PHONY: deploy
 deploy:
diff --git a/_examples/kv-counter/Makefile b/_examples/kv-counter/Makefile
index 019492c2..95235a39 100644
--- a/_examples/kv-counter/Makefile
+++ b/_examples/kv-counter/Makefile
@@ -4,8 +4,12 @@ dev:
 
 .PHONY: build
 build:
-	go run ../../cmd/workers-assets-gen
-	tinygo build -o ./build/app.wasm -target wasm -no-debug ./...
+	go run ../../cmd/workers-assets-gen -mode=go
+	GOOS=js GOARCH=wasm go build -o ./build/app.wasm ./...
+
+.PHONY: create-kv-namespace
+create-kv-namespace:
+	wrangler kv namespace create COUNTER
 
 .PHONY: deploy
 deploy:
diff --git a/_examples/kv-counter/README.md b/_examples/kv-counter/README.md
index 1ea90a0a..76a107d0 100644
--- a/_examples/kv-counter/README.md
+++ b/_examples/kv-counter/README.md
@@ -13,12 +13,13 @@
 This project requires these tools to be installed globally.
 
 * wrangler
-* tinygo
+* Go 1.24.0 or later
 
 ### Commands
 
 ```
-make dev     # run dev server
-make build   # build Go Wasm binary
-make deploy # deploy worker
+make dev                  # run dev server
+make build                # build Go Wasm binary
+make create-kv-namespace  # creates a kv namespace - add binding to wrangler.toml before deploy
+make deploy               # deploy worker
 ```
diff --git a/_examples/kv-counter/wrangler.toml b/_examples/kv-counter/wrangler.toml
index 23b29adb..e2d5cb69 100644
--- a/_examples/kv-counter/wrangler.toml
+++ b/_examples/kv-counter/wrangler.toml
@@ -5,10 +5,5 @@ compatibility_flags = [
     "streams_enable_constructors"
 ]
 
-[[kv_namespaces]]
-binding = "COUNTER"
-id = "fe0ef36853f04fe986c1ade5271ea6a4"
-preview_id = "916f05d37f4741e0a19aa3d0bd4d282e"
-
 [build]
 command = "make build"
diff --git a/_examples/multiple-handlers/Makefile b/_examples/multiple-handlers/Makefile
index eaa93565..0a705f23 100644
--- a/_examples/multiple-handlers/Makefile
+++ b/_examples/multiple-handlers/Makefile
@@ -4,8 +4,8 @@ dev:
 
 .PHONY: build
 build:
-	go run ../../cmd/workers-assets-gen
-	tinygo build -o ./build/app.wasm -target wasm -no-debug ./...
+	go run ../../cmd/workers-assets-gen -mode=go
+	GOOS=js GOARCH=wasm go build -o ./build/app.wasm ./...
 
 .PHONY: deploy
 deploy:
diff --git a/_examples/multiple-handlers/README.md b/_examples/multiple-handlers/README.md
index 768d3350..9476a1dc 100644
--- a/_examples/multiple-handlers/README.md
+++ b/_examples/multiple-handlers/README.md
@@ -9,14 +9,14 @@
 This project requires these tools to be installed globally.
 
 * wrangler
-* tinygo
+* Go 1.24.0 or later
 
 ### Commands
 
 ```
 make dev     # run dev server
 make build   # build Go Wasm binary
-make deploy # deploy worker
+make deploy  # deploy worker
 ```
 
 #### Testing cron schedule
diff --git a/_examples/multiple-handlers/wrangler.toml b/_examples/multiple-handlers/wrangler.toml
index c0dc4c18..2a7b7120 100644
--- a/_examples/multiple-handlers/wrangler.toml
+++ b/_examples/multiple-handlers/wrangler.toml
@@ -1,7 +1,6 @@
 name = "multiple-handlers"
 main = "./build/worker.mjs"
 compatibility_date = "2023-02-24"
-workers_dev = false
 
 [triggers]
 crons = ["* * * * *"]
diff --git a/_examples/pages-functions/Makefile b/_examples/pages-functions/Makefile
index 93be154a..720722f4 100644
--- a/_examples/pages-functions/Makefile
+++ b/_examples/pages-functions/Makefile
@@ -4,8 +4,8 @@ dev:
 
 .PHONY: build
 build:
-	go run ../../cmd/workers-assets-gen
-	tinygo build -o ./build/app.wasm -target wasm -no-debug ./...
+	go run ../../cmd/workers-assets-gen -mode=go
+	GOOS=js GOARCH=wasm go build -o ./build/app.wasm ./...
 
 .PHONY: deploy
 deploy:
diff --git a/_examples/pages-functions/README.md b/_examples/pages-functions/README.md
index 04aa5750..eb2f976a 100644
--- a/_examples/pages-functions/README.md
+++ b/_examples/pages-functions/README.md
@@ -13,12 +13,12 @@
 This project requires these tools to be installed globally.
 
 * wrangler
-* tinygo
+* Go 1.24.0 or later
 
 ### Commands
 
 ```
 make build   # build Go Wasm binary
 make dev     # run dev server
-make deploy # deploy worker
+make deploy  # deploy worker
 ```
diff --git a/_examples/pages-functions/wrangler.toml b/_examples/pages-functions/wrangler.toml
index 29ea062e..0d436677 100644
--- a/_examples/pages-functions/wrangler.toml
+++ b/_examples/pages-functions/wrangler.toml
@@ -1,2 +1,6 @@
 name = "pages-functions"
+main = "./build/worker.mjs"
 compatibility_date = "2023-04-30"
+
+[build]
+command = "make build"
\ No newline at end of file
diff --git a/_examples/queues/Makefile b/_examples/queues/Makefile
index 019492c2..547c9e35 100644
--- a/_examples/queues/Makefile
+++ b/_examples/queues/Makefile
@@ -4,8 +4,12 @@ dev:
 
 .PHONY: build
 build:
-	go run ../../cmd/workers-assets-gen
-	tinygo build -o ./build/app.wasm -target wasm -no-debug ./...
+	go run ../../cmd/workers-assets-gen -mode=go
+	GOOS=js GOARCH=wasm go build -o ./build/app.wasm ./...
+
+.PHONY: create-queue
+create-queue:
+	wrangler queues create my-queue
 
 .PHONY: deploy
 deploy:
diff --git a/_examples/queues/README.md b/_examples/queues/README.md
index 9d01dd1d..fb920460 100644
--- a/_examples/queues/README.md
+++ b/_examples/queues/README.md
@@ -9,14 +9,15 @@ An example of using Cloudflare Workers that interact with [Cloudflare Queues](ht
 This project requires these tools to be installed globally.
 
 * wrangler
-* tinygo
+* Go 1.24.0 or later
 
 ### Supported commands
 
 ```
-make dev     # run dev server
-make build   # build Go Wasm binary
-make deploy # deploy worker
+make dev          # run dev server
+make build        # build Go Wasm binary
+make create-queue # creates the queue
+make deploy       # deploy worker
 ```
 
 ### Interacting with the local queue
diff --git a/_examples/r2-image-server/Makefile b/_examples/r2-image-server/Makefile
index 019492c2..ef502ca1 100644
--- a/_examples/r2-image-server/Makefile
+++ b/_examples/r2-image-server/Makefile
@@ -4,8 +4,12 @@ dev:
 
 .PHONY: build
 build:
-	go run ../../cmd/workers-assets-gen
-	tinygo build -o ./build/app.wasm -target wasm -no-debug ./...
+	go run ../../cmd/workers-assets-gen -mode=go
+	GOOS=js GOARCH=wasm go build -o ./build/app.wasm .
+
+.PHONY: create-bucket
+create-bucket:
+	wrangler r2 bucket create r2-image-viewer
 
 .PHONY: deploy
 deploy:
diff --git a/_examples/r2-image-server/README.md b/_examples/r2-image-server/README.md
index 20b54591..a95a7ef4 100644
--- a/_examples/r2-image-server/README.md
+++ b/_examples/r2-image-server/README.md
@@ -26,12 +26,13 @@
 This project requires these tools to be installed globally.
 
 * wrangler
-* tinygo
+* Go 1.24.0 or later
 
 ### Commands
 
 ```
-make dev     # run dev server
-make build   # build Go Wasm binary
-make deploy # deploy worker
+make dev           # run dev server
+make build         # build Go Wasm binary
+make create-bucket # create r2 bucket
+make deploy        # deploy worker
 ```
diff --git a/_examples/r2-image-viewer/Makefile b/_examples/r2-image-viewer/Makefile
index 019492c2..cff2000f 100644
--- a/_examples/r2-image-viewer/Makefile
+++ b/_examples/r2-image-viewer/Makefile
@@ -4,8 +4,12 @@ dev:
 
 .PHONY: build
 build:
-	go run ../../cmd/workers-assets-gen
-	tinygo build -o ./build/app.wasm -target wasm -no-debug ./...
+	go run ../../cmd/workers-assets-gen -mode=go
+	GOOS=js GOARCH=wasm go build -o ./build/app.wasm ./...
+
+.PHONY: create-bucket
+create-bucket:
+	wrangler r2 bucket create r2-image-viewer
 
 .PHONY: deploy
 deploy:
diff --git a/_examples/r2-image-viewer/README.md b/_examples/r2-image-viewer/README.md
index 5d483eb0..4e1f5d76 100644
--- a/_examples/r2-image-viewer/README.md
+++ b/_examples/r2-image-viewer/README.md
@@ -1,7 +1,7 @@
 # r2-image-viewer-tinygo
 
 * An example server which returns image from Cloudflare R2.
-* This server is implemented in Go and compiled with tinygo.
+* This server is implemented in Go.
 
 ## Example
 
@@ -14,12 +14,13 @@
 This project requires these tools to be installed globally.
 
 * wrangler
-* tinygo
+* Go 1.24.0 or later
 
 ### Commands
 
 ```
-make dev     # run dev server
-make build   # build Go Wasm binary
-make deploy # deploy worker
+make dev           # run dev server
+make build         # build Go Wasm binary
+make create-bucket # create r2 bucket
+make deploy        # deploy worker
 ```
diff --git a/_examples/service-bindings/Makefile b/_examples/service-bindings/Makefile
index 019492c2..ec9f8f92 100644
--- a/_examples/service-bindings/Makefile
+++ b/_examples/service-bindings/Makefile
@@ -4,8 +4,8 @@ dev:
 
 .PHONY: build
 build:
-	go run ../../cmd/workers-assets-gen
-	tinygo build -o ./build/app.wasm -target wasm -no-debug ./...
+	go run ../../cmd/workers-assets-gen -mode=go
+	GOOS=js GOARCH=wasm go build -o ./build/app.wasm ./...
 
 .PHONY: deploy
 deploy:
diff --git a/_examples/service-bindings/README.md b/_examples/service-bindings/README.md
index a905a0c3..94f4e487 100644
--- a/_examples/service-bindings/README.md
+++ b/_examples/service-bindings/README.md
@@ -10,7 +10,7 @@
 This project requires these tools to be installed globally.
 
 * wrangler
-* tinygo
+* Go 1.24.0 or later
 
 ### Deploy Steps
 
@@ -24,7 +24,7 @@ This project requires these tools to be installed globally.
 3. Deploy this example.
     ```
     make build   # build Go Wasm binary
-    make deploy # deploy worker
+    make deploy  # deploy worker
     ```
 
 ## Documents
diff --git a/_examples/simple-json-server/Makefile b/_examples/simple-json-server/Makefile
index 8ac4d8a7..ec9f8f92 100644
--- a/_examples/simple-json-server/Makefile
+++ b/_examples/simple-json-server/Makefile
@@ -4,8 +4,8 @@ dev:
 
 .PHONY: build
 build:
-	go run ../../cmd/workers-assets-gen
-	tinygo build -o ./build/app.wasm -target wasm -no-debug ./main.go
+	go run ../../cmd/workers-assets-gen -mode=go
+	GOOS=js GOARCH=wasm go build -o ./build/app.wasm ./...
 
 .PHONY: deploy
 deploy:
diff --git a/_examples/simple-json-server/README.md b/_examples/simple-json-server/README.md
index 2e5ca7e9..7e91887f 100644
--- a/_examples/simple-json-server/README.md
+++ b/_examples/simple-json-server/README.md
@@ -31,12 +31,12 @@ curl --location --request POST 'https://simple-json-server.syumai.workers.dev/he
 This project requires these tools to be installed globally.
 
 * wrangler
-* tinygo
+* Go 1.24.0 or later
 
 ### Commands
 
 ```
 make dev     # run dev server
 make build   # build Go Wasm binary
-make deploy # deploy worker
+make deploy  # deploy worker
 ```
diff --git a/_examples/stream-large-file/Makefile b/_examples/stream-large-file/Makefile
index 019492c2..ec9f8f92 100644
--- a/_examples/stream-large-file/Makefile
+++ b/_examples/stream-large-file/Makefile
@@ -4,8 +4,8 @@ dev:
 
 .PHONY: build
 build:
-	go run ../../cmd/workers-assets-gen
-	tinygo build -o ./build/app.wasm -target wasm -no-debug ./...
+	go run ../../cmd/workers-assets-gen -mode=go
+	GOOS=js GOARCH=wasm go build -o ./build/app.wasm ./...
 
 .PHONY: deploy
 deploy:
diff --git a/_examples/stream-large-file/README.md b/_examples/stream-large-file/README.md
index cb751db8..0051ad97 100644
--- a/_examples/stream-large-file/README.md
+++ b/_examples/stream-large-file/README.md
@@ -7,12 +7,12 @@
 This project requires these tools to be installed globally.
 
 * wrangler
-* tinygo
+* Go 1.24.0 or later
 
 ### Commands
 
 ```
 make dev     # run dev server
 make build   # build Go Wasm binary
-make deploy # deploy worker
+make deploy  # deploy worker
 ```
\ No newline at end of file