diff --git a/Makefile b/Makefile
index 99795cc..2f5da83 100644
--- a/Makefile
+++ b/Makefile
@@ -37,33 +37,30 @@ dist:
 	GOOS=linux GOARCH=amd64 go build -ldflags="$(LDFLAGS)" -o build/gozen-linux-amd64
 	cp build/gozen-linux-amd64 build/gozen
 	tar -zcvf build/gozen-linux-amd64.tar.gz build/gozen man/gozen.1
-	cd build && sha256sum gozen-linux-amd64.tar.gz > checksum-sha256sum.txt
 
 	GOOS=linux GOARCH=arm64 go build -ldflags="$(LDFLAGS)" -o build/gozen-linux-arm64
 	cp build/gozen-linux-arm64 build/gozen
 	tar -zcvf build/gozen-linux-arm64.tar.gz build/gozen man/gozen.1
-	cd build && sha256sum gozen-linux-arm64.tar.gz >> checksum-sha256sum.txt
 
 	GOOS=linux GOARCH=arm go build -ldflags="$(LDFLAGS)" -o build/gozen-linux-arm
 	cp build/gozen-linux-arm build/gozen
 	tar -zcvf build/gozen-linux-arm.tar.gz build/gozen man/gozen.1
-	cd build && sha256sum gozen-linux-arm.tar.gz >> checksum-sha256sum.txt
 	
 	GOOS=darwin GOARCH=amd64 go build -ldflags="$(LDFLAGS)" -o build/gozen-darwin-amd64
 	cp build/gozen-darwin-amd64 build/gozen
 	tar -zcvf build/gozen-darwin-amd64.tar.gz build/gozen man/gozen.1
-	cd build && sha256sum gozen-darwin-amd64.tar.gz >> checksum-sha256sum.txt
 	
 	GOOS=darwin GOARCH=arm64 go build -ldflags="$(LDFLAGS)" -o build/gozen-darwin-arm64
 	cp build/gozen-darwin-arm64 build/gozen
 	tar -zcvf build/gozen-darwin-arm64.tar.gz build/gozen man/gozen.1
-	cd build && sha256sum gozen-darwin-arm64.tar.gz >> checksum-sha256sum.txt
 	rm build/gozen
 	
 	GOOS=windows GOARCH=amd64 go build -ldflags="$(LDFLAGS)" -o build/gozen-windows-amd64.exe
-	cd build && sha256sum gozen-windows-amd64.exe >> checksum-sha256sum.txt
 	GOOS=windows GOARCH=386 go build -ldflags="$(LDFLAGS)" -o build/gozen-windows-i386.exe
-	cd build && sha256sum gozen-windows-i386.exe >> checksum-sha256sum.txt
+	
+	# Generating checksum
+	cd build && sha256sum * >> checksum-sha256sum.txt
+	cd build && md5sum * >> checksum-md5sum.txt
 
 clean:
 	rm -rf gozen*
diff --git a/README.md b/README.md
index 8b38e3d..b081615 100644
--- a/README.md
+++ b/README.md
@@ -8,14 +8,20 @@ Download and install executable binary from GitHub releases page.
 
 ### Linux Installation
 ```sh
-curl -sL https://github.com/tech-thinker/gozen/releases/download/v0.1.1/gozen-linux-amd64 -o gozen
+# Use latest tag name from release page
+TAG=<tag-name>
+
+curl -sL "https://github.com/tech-thinker/gozen/releases/download/${TAG}/gozen-linux-amd64" -o gozen
 chmod +x gozen
 sudo mv gozen /usr/bin
 ```
 
 ### MacOS Installation
 ```sh
-curl -sL https://github.com/tech-thinker/gozen/releases/download/v0.1.1/gozen-darwin-amd64 -o gozen
+# Use latest tag name from release page
+TAG=<tag-name>
+
+curl -sL "https://github.com/tech-thinker/gozen/releases/download/${TAG}/gozen-darwin-amd64" -o gozen
 chmod +x gozen
 sudo mv gozen /usr/bin
 ```
@@ -28,10 +34,42 @@ brew install gozen
 
 ### Windows Installation
 ```sh
-curl -sL https://github.com/tech-thinker/gozen/releases/download/v0.1.1/gozen-windows-amd64.exe -o gozen.exe
+# Use latest tag name from release page
+TAG=<tag-name>
+
+curl -sL "https://github.com/tech-thinker/gozen/releases/download/${TAG}/gozen-windows-amd64.exe" -o gozen.exe
 gozen.exe
 ```
 
+### Verify checksum
+```sh
+# Use latest tag name from release page
+TAG=<tag-name>
+
+# Using sha256sum
+curl -sL "https://github.com/tech-thinker/gozen/releases/download/${TAG}/checksum-sha256sum.txt" -o checksum-sha256sum.txt
+sha256sum --ignore-missing --check checksum-sha256sum.txt
+
+# Using md5sum
+curl -sL "https://github.com/tech-thinker/gozen/releases/download/${TAG}/checksum-md5sum.txt" -o checksum-md5sum.txt
+md5sum --ignore-missing --check checksum-md5sum.txt
+```
+Output:
+```sh
+gozen-darwin-amd64: OK
+gozen-darwin-amd64.tar.gz: OK
+gozen-darwin-arm64: OK
+gozen-darwin-arm64.tar.gz: OK
+gozen-linux-amd64: OK
+gozen-linux-amd64.tar.gz: OK
+gozen-linux-arm: OK
+gozen-linux-arm.tar.gz: OK
+gozen-linux-arm64: OK
+gozen-linux-arm64.tar.gz: OK
+gozen-windows-amd64.exe: OK
+gozen-windows-i386.exe: OK
+```
+
 ## CLI Guide
 - `gozen` help
 ```sh
diff --git a/main.go b/main.go
index 432479c..f2f7512 100644
--- a/main.go
+++ b/main.go
@@ -2,6 +2,7 @@ package main
 
 import (
 	"embed"
+	"fmt"
 	"os"
 
 	"github.com/tech-thinker/gozen/cmd"
@@ -65,6 +66,15 @@ func main() {
 					Driver:      driver,
                     WorkingDir:  outputDir,
 				}
+
+                err := project.Validate()
+                if err != nil {
+                    fmt.Println(err)
+                    return nil
+                }
+
+                project.AutoFixes()
+
 				app := cmd.NewAppCmd(project, helper)
 
 				return app.CreateApp()
diff --git a/man/gozen.1 b/man/gozen.1
index d778bee..b1a930d 100644
--- a/man/gozen.1
+++ b/man/gozen.1
@@ -1,4 +1,4 @@
-.TH GOZEN 1 "September 25, 2024" "Version 0.1.1" "User Commands"
+.TH GOZEN 1 "September 25, 2024" "Version 0.1.2" "User Commands"
 .SH NAME
 gozen \- is a simplified golang MVC framework to generate projects and components.
 .SH SYNOPSIS
diff --git a/models/project.go b/models/project.go
index 9437e26..f1915f7 100644
--- a/models/project.go
+++ b/models/project.go
@@ -2,9 +2,11 @@ package models
 
 import (
 	"encoding/json"
+	"errors"
 	"fmt"
 	"io"
 	"os"
+	"strings"
 
 	"github.com/tech-thinker/gozen/constants"
 )
@@ -16,6 +18,19 @@ type Project struct {
     WorkingDir  string `json:"-"`
 }
 
+func (p Project) Validate() error {
+    if len(p.PackageName) == 0 {
+        return errors.New("Please provide package name.")
+    }
+    return nil
+}
+
+func (p *Project) AutoFixes() {
+    if len(p.AppName) == 0 {
+        p.AppName = p.PackageName[strings.LastIndex(p.PackageName, "/")+1:]
+    }
+}
+
 func (p Project) ToJSON() string {
 	bytes, err := json.Marshal(p)
 	if err != nil {
diff --git a/templates/Makefile.tpl b/templates/Makefile.tpl
index 2e2c02d..d51cce5 100644
--- a/templates/Makefile.tpl
+++ b/templates/Makefile.tpl
@@ -1,5 +1,11 @@
 # Environments
 
+# Load .env file
+ifneq (,$(wildcard .env))
+    include .env
+    export $(shell sed 's/=.*//' .env)
+endif
+
 test:
 	go test -v ./...  -race -coverprofile=coverage.out -covermode=atomic
 
@@ -7,7 +13,7 @@ setup:
 	go mod tidy
 
 run:
-	export $(cat .env | xargs) && go run main.go start
+	go run main.go start
 
 build:
 	go build -o {{.AppName}}