diff --git a/.gitignore b/.gitignore
index 7c8968d..0f31557 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,8 @@
 #### joe made this: http://goel.io/joe
 
+qiic
+.envrc
+
 # Mac
 .DS_Store
 
diff --git a/.goreleaser.yml b/.goreleaser.yml
new file mode 100644
index 0000000..02ee397
--- /dev/null
+++ b/.goreleaser.yml
@@ -0,0 +1,33 @@
+before:
+  hooks:
+    - go mod download
+builds:
+- env:
+  - CGO_ENABLED=0
+  main: ./cmd/qiic/main.go
+  binary: qiic
+archives:
+- replacements:
+    darwin: Darwin
+    386: i386
+    amd64: x86_64
+checksum:
+  name_template: 'checksums.txt'
+snapshot:
+  name_template: "{{ .Tag }}-next"
+changelog:
+  sort: asc
+  filters:
+    exclude:
+    - '^docs:'
+    - '^test:'
+brews:
+- tap:
+    owner: momotaro98
+    name: homebrew-qiic
+    token: "{{ .Env.HOMEBREW_TAP_GITHUB_TOKEN }}"
+  folder: Formula
+  homepage: https://github.com/momotaro98/qiic
+  description: qiic
+  test: |
+    system "#{bin}/qiic --version"
diff --git a/Makefile b/Makefile
index bafaab7..191fa37 100644
--- a/Makefile
+++ b/Makefile
@@ -4,26 +4,23 @@ GOVERSION=$(shell go version)
 GOOS=$(word 1,$(subst /, ,$(word $(words $(GOVERSION)), $(GOVERSION))))
 GOARCH=$(word 2,$(subst /, ,$(word $(words $(GOVERSION)), $(GOVERSION))))
 GOCMD=go
+BINPATH=./cmd/qiic
 GOBUILD=$(GOCMD) build
 GOCLEAN=$(GOCMD) clean
 GOTEST=$(GOCMD) test
-BINARY_DIR=build
-RELEASE_DIR=$(CURDIR)/release/$(VERSION)
-BINARY_NAME=qiic
 
 .PHONY: build test clean
 
 all: build test
 
 build:
-	$(GOBUILD) -o $(BINARY_DIR)/$(PRODUCT_NAME)_$(GOOS)_$(GOARCH)/$(BINARY_NAME) -v
+	$(GOBUILD) $(BINPATH)
 
 test:
 	$(GOTEST) -v ./...
 
 clean:
-	$(GOCLEAN)
-	rm -rf $(BINARY_DIR)
+	rm -f ./qiic
 
 docker-build:
 	docker build -t $(PRODUCT_NAME):$(VERSION) .
@@ -33,14 +30,6 @@ docker-run:
 		&& docker run --rm \
 		$(PRODUCT_NAME):$(VERSION)
 
-$(RELEASE_DIR):
-	@mkdir -p $@
-
-release-darwin-amd64:
-	@$(MAKE) build release-zip GOOS=darwin GOARCH=amd64
-
-release-zip: $(RELEASE_DIR)
-	@echo " * Creating zip for $(GOOS)/$(GOARCH)"
-	cd $(BINARY_DIR) && zip -9 $(RELEASE_DIR)/$(PRODUCT_NAME)_$(GOOS)_$(GOARCH).zip $(PRODUCT_NAME)_$(GOOS)_$(GOARCH)/*
-
-release-files: release-darwin-amd64
+.PHONY: help
+help: ## Help command
+	@grep -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}'
diff --git a/backend.go b/backend.go
index 8ada581..3ab18a4 100644
--- a/backend.go
+++ b/backend.go
@@ -1,4 +1,4 @@
-package main
+package qiic
 
 import (
 	"context"
diff --git a/main.go b/cmd/qiic/main.go
similarity index 79%
rename from main.go
rename to cmd/qiic/main.go
index 77ff923..b35eec7 100644
--- a/main.go
+++ b/cmd/qiic/main.go
@@ -9,6 +9,8 @@ import (
 	"sync"
 
 	"github.com/urfave/cli"
+
+	"github.com/momotaro98/qiic"
 )
 
 const Version = "1.2.0"
@@ -32,7 +34,7 @@ func main() {
 				if err != nil {
 					return fmt.Errorf("Error! Argument is required to be number\nUsage Example: qiic a 3")
 				}
-				articles, err := Load()
+				articles, err := qiic.Load()
 				if err != nil {
 					return err
 				}
@@ -40,7 +42,7 @@ func main() {
 					return fmt.Errorf("Error! The argument number is out of range of the articles Access Number\nUsage Example: qiic a 3\nCheck Articles Number with\nqiic u\n  or\nqiic l")
 				}
 				targetArticle := articles[argAnum-1] // need decrement
-				err = OpenBrowser(targetArticle.URL)
+				err = qiic.OpenBrowser(targetArticle.URL)
 				if err != nil {
 					return err
 				}
@@ -52,11 +54,11 @@ func main() {
 			Aliases: []string{"l", "ls"},
 			Usage:   "list local saved articles",
 			Action: func(ctx *cli.Context) error {
-				articles, err := Load()
+				articles, err := qiic.Load()
 				if err != nil {
 					return err
 				}
-				Render(articles)
+				qiic.Render(articles)
 				return nil
 			},
 		},
@@ -82,21 +84,18 @@ func main() {
 				page := ctx.Int("page")
 
 				if username == "" {
-					msg := "username is required"
-					fmt.Println(msg)
-					return fmt.Errorf(msg)
+					return fmt.Errorf("username is required")
 				}
 
 				// Fetch from API Server
-				req := &UserStockRequest{
+				req := &qiic.UserStockRequest{
 					UserName: username,
-					GetRequest: GetRequest{
+					GetRequest: qiic.GetRequest{
 						Page: page,
 					},
 				}
-				articles, _, err := GetArticles(context.Background(), req)
+				articles, _, err := qiic.GetArticles(context.Background(), req)
 				if err != nil {
-					fmt.Println(err)
 					return err
 				}
 
@@ -133,31 +132,29 @@ func main() {
 
 				var (
 					c   = context.Background()
-					req ArticlesGetRequester
+					req qiic.ArticlesGetRequester
 				)
 
 				if token != "" {
-					c = SetToken(c, token)
-					req = &ReqGetAuthenticatedUserItems{
-						GetRequest{
+					c = qiic.SetToken(c, token)
+					req = &qiic.ReqGetAuthenticatedUserItems{
+						GetRequest: qiic.GetRequest{
 							Page: 1,
 						},
 					}
 				} else if username != "" {
-					c = SetUserName(context.Background(), username)
-					req = &ReqGetUserItems{
-						GetRequest{
+					c = qiic.SetUserName(context.Background(), username)
+					req = &qiic.ReqGetUserItems{
+						GetRequest: qiic.GetRequest{
 							Page: 1,
 						},
 					}
 				} else {
-					msg := "either token or username is required"
-					fmt.Println(msg)
-					return fmt.Errorf(msg)
+					return fmt.Errorf("either token or username is required")
 				}
 
 				// Fetch from API Server
-				articles, err := CollectUserItems(c, req)
+				articles, err := qiic.CollectUserItems(c, req)
 				if err != nil {
 					fmt.Println(err)
 					return err
@@ -173,7 +170,7 @@ func main() {
 				end := start + ArtPerPage
 				num := len(articles)
 				if num <= start {
-					articles = []*Article{}
+					articles = []*qiic.Article{}
 				} else if num < end {
 					articles = articles[start:num]
 				} else {
@@ -185,17 +182,19 @@ func main() {
 		},
 	}
 
-	app.Run(os.Args)
+	if err := app.Run(os.Args); err != nil {
+		fmt.Println(err)
+	}
 }
 
-func SaveAndRender(articles []*Article) error {
+func SaveAndRender(articles []*qiic.Article) error {
 	var wg sync.WaitGroup
 
 	// Save file
 	wg.Add(1)
 	go func() {
 		defer wg.Done()
-		if err := Save(articles); err != nil {
+		if err := qiic.Save(articles); err != nil {
 			fmt.Println("saving a file for cache failed")
 		}
 	}()
@@ -204,7 +203,7 @@ func SaveAndRender(articles []*Article) error {
 	wg.Add(1)
 	go func() {
 		defer wg.Done()
-		Render(articles)
+		qiic.Render(articles)
 	}()
 
 	wg.Wait()
diff --git a/content.go b/content.go
index 67635b6..991c7e4 100644
--- a/content.go
+++ b/content.go
@@ -1,4 +1,4 @@
-package main
+package qiic
 
 import (
 	"time"
diff --git a/frontend.go b/frontend.go
index aba087b..43e1454 100644
--- a/frontend.go
+++ b/frontend.go
@@ -1,4 +1,4 @@
-package main
+package qiic
 
 import (
 	"fmt"
diff --git a/frontend_test.go b/frontend_test.go
index 10faadf..e0aa5ce 100644
--- a/frontend_test.go
+++ b/frontend_test.go
@@ -1,4 +1,4 @@
-package main
+package qiic
 
 import (
 	"fmt"
diff --git a/handlefile.go b/handlefile.go
index 5cb83cf..0461fe1 100644
--- a/handlefile.go
+++ b/handlefile.go
@@ -1,4 +1,4 @@
-package main
+package qiic
 
 import (
 	"encoding/json"
diff --git a/utils.go b/utils.go
index 48f590f..2901680 100644
--- a/utils.go
+++ b/utils.go
@@ -1,4 +1,4 @@
-package main
+package qiic
 
 import (
 	"fmt"