diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 0000000..6ea84a2
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,6 @@
+version: 2
+updates:
+  - package-ecosystem: "gomod"
+  directory: "/"
+  schedule:
+    interval: "daily"
\ No newline at end of file
diff --git a/.github/workflows/golangci-lint.yml b/.github/workflows/golangci-lint.yml
new file mode 100644
index 0000000..92e9268
--- /dev/null
+++ b/.github/workflows/golangci-lint.yml
@@ -0,0 +1,55 @@
+name: golangci-lint
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+permissions:
+  contents: read
+  # Optional: allow read access to pull request. Use with `only-new-issues` option.
+  # pull-requests: read
+
+jobs:
+  golangci:
+    name: lint
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-go@v4
+        with:
+          go-version: '1.21'
+          cache: false
+      - name: golangci-lint
+        uses: golangci/golangci-lint-action@v3
+        with:
+          # Require: The version of golangci-lint to use.
+          # When `install-mode` is `binary` (default) the value can be v1.2 or v1.2.3 or `latest` to use the latest version.
+          # When `install-mode` is `goinstall` the value can be v1.2.3, `latest`, or the hash of a commit.
+          version: v1.54
+
+          # Optional: working directory, useful for monorepos
+          # working-directory: somedir
+
+          # Optional: golangci-lint command line arguments.
+          #
+          # Note: By default, the `.golangci.yml` file should be at the root of the repository.
+          # The location of the configuration file can be changed by using `--config=`
+          # args: --timeout=30m --config=/my/path/.golangci.yml --issues-exit-code=0 
+          args: --timeout=3m -v
+
+          # Optional: show only new issues if it's a pull request. The default value is `false`.
+          # only-new-issues: true
+
+          # Optional: if set to true, then all caching functionality will be completely disabled,
+          #           takes precedence over all other caching options.
+          # skip-cache: true
+
+          # Optional: if set to true, then the action won't cache or restore ~/go/pkg.
+          # skip-pkg-cache: true
+
+          # Optional: if set to true, then the action won't cache or restore ~/.cache/go-build.
+          # skip-build-cache: true
+
+          # Optional: The mode to install golangci-lint. It can be 'binary' or 'goinstall'.
+          # install-mode: "goinstall"
\ No newline at end of file
diff --git a/.github/workflows/release-binary.yml b/.github/workflows/release-binary.yml
index 6accd90..b93506a 100644
--- a/.github/workflows/release-binary.yml
+++ b/.github/workflows/release-binary.yml
@@ -7,7 +7,7 @@ on:
 jobs:
   release-binary:
     name: Release Go Binary
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     strategy:
       matrix:
         # build and publish in parallel: linux/386, linux/amd64, linux/arm64, windows/386, windows/amd64, darwin/amd64, darwin/arm64
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 0000000..71cbb75
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,22 @@
+name: codecov
+
+on:
+    push:
+        branches:
+            - main
+    pull_request:
+
+jobs:
+    build:
+        runs-on: ubuntu-latest
+        steps:
+        -   uses: actions/checkout@v4
+        -   uses: actions/setup-go@v4
+            with:
+                go-version: 'stable'
+        -   name: Run coverage
+            run: go test -race -coverprofile=coverage.txt -covermode=atomic ./...
+        -   name: Upload coverage to Codecov
+            uses: codecov/codecov-action@v3
+            env:
+                CODECOV_TOKEN: ${{ secrets.CODECOV_ORG_TOKEN }}
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..c57100a
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+coverage.txt
diff --git a/.golangci.yml b/.golangci.yml
new file mode 100644
index 0000000..268e208
--- /dev/null
+++ b/.golangci.yml
@@ -0,0 +1,175 @@
+### Config GolangCI
+
+# Options for analysis running.
+run:
+  # The default concurrency value is the number of available CPU.
+  concurrency: 2
+
+  # Timeout for analysis, e.g. 30s, 5m.
+  # Default: 1m
+  timeout: 5m
+
+  # Exit code when at least one issue was found.
+  # Default: 1
+  issues-exit-code: 2
+
+  # Include test files or not.
+  # Default: true
+  tests: false
+
+  # If set we pass it to "go list -mod={option}". From "go help modules":
+  # If invoked with -mod=readonly, the go command is disallowed from the implicit
+  # automatic updating of go.mod described above. Instead, it fails when any changes
+  # to go.mod are needed. This setting is most useful to check that go.mod does
+  # not need updates, such as in a continuous integration and testing system.
+  # If invoked with -mod=vendor, the go command assumes that the vendor
+  # directory holds the correct copies of dependencies and ignores
+  # the dependency descriptions in go.mod.
+  #
+  # Allowed values: readonly|vendor|mod
+  # By default, it isn't set.
+  modules-download-mode: readonly
+
+  # Allow multiple parallel golangci-lint instances running.
+  # If false (default) - golangci-lint acquires file lock on start.
+  allow-parallel-runners: false
+
+  # Define the Go version limit.
+  # Mainly related to generics support since go1.18.
+  # Default: use Go version from the go.mod file, fallback on the env var `GOVERSION`, fallback on 1.18
+  go: '1.18'
+
+
+# output configuration options
+output:
+  # Format: colored-line-number|line-number|json|colored-tab|tab|checkstyle|code-climate|junit-xml|github-actions|teamcity
+  #
+  # Multiple can be specified by separating them by comma, output can be provided
+  # for each of them by separating format name and path by colon symbol.
+  # Output path can be either `stdout`, `stderr` or path to the file to write to.
+  # Example: "checkstyle:report.xml,json:stdout,colored-line-number"
+  #
+  # Default: colored-line-number
+  format: json
+
+    # Print lines of code with issue.
+  # Default: true
+  print-issued-lines: false
+  # Print linter name in the end of issue text.
+  # Default: true
+  print-linter-name: false
+  # Make issues output unique by line.
+  # Default: true
+  uniq-by-line: false
+  # Add a prefix to the output file references.
+  # Default is no prefix.
+  path-prefix: ""
+  # Sort results by: filepath, line and column.
+  sort-results: false
+
+linters:
+  # Disable all linters.
+  # Default: false
+  disable-all: false
+
+  # Enable all available linters.
+  # Default: false
+  enable-all: false
+
+  enable:
+    - errcheck
+    - gosimple
+    - govet
+    - ineffassign
+    - unused
+    - asciicheck
+    - bidichk
+    - containedctx
+    - cyclop
+    - decorder
+    - depguard
+    - dupl
+    - dupword
+    - execinquery
+    - exhaustruct
+    - goconst
+    - gosec
+    - interfacebloat
+    - misspell
+    - sqlclosecheck
+    - unconvert
+    - unparam
+    - usestdlibvars
+
+  # Run only fast linters from enabled linters set (first run won't be fast)
+  # Default: false
+  fast: true
+
+
+linters-settings:
+  cyclop:
+    # The maximal average package complexity.
+    # If it's higher than 0.0 (float) the check is enabled
+    # Default: 0.0
+    package-average: 0.5
+    # Should ignore tests.
+    # Default: false
+    skip-tests: true
+
+  decorder:
+    # Required order of `type`, `const`, `var` and `func` declarations inside a file.
+    # Default: types before constants before variables before functions.
+    dec-order:
+      - type
+      - const
+      - var
+      - func
+    # If true, underscore vars (vars with "_" as the name) will be ignored at all checks
+    # Default: false (underscore vars are not ignored)
+    ignore-underscore-vars: false
+    # If true, order of declarations is not checked at all.
+    # Default: true (disabled)
+    disable-dec-order-check: false
+    # If true, `init` func can be anywhere in file (does not have to be declared before all other functions).
+    # Default: true (disabled)
+    disable-init-func-first-check: false
+    # If true, multiple global `type`, `const` and `var` declarations are allowed.
+    # Default: true (disabled)
+    disable-dec-num-check: false
+    # If true, type declarations will be ignored for dec num check
+    # Default: false (type statements are not ignored)
+    disable-type-dec-num-check: false
+    # If true, const declarations will be ignored for dec num check
+    # Default: false (const statements are not ignored)
+    disable-const-dec-num-check: false
+    # If true, var declarations will be ignored for dec num check
+    # Default: false (var statements are not ignored)
+    disable-var-dec-num-check: false
+
+  dupl:
+    # Tokens count to trigger issue.
+    # Default: 150
+    threshold: 150
+
+  dupword:
+    # Keywords for detecting duplicate words.
+    # If this list is not empty, only the words defined in this list will be detected.
+    # Default: []
+    keywords:
+      - "the"
+      - "and"
+      - "a"
+    # Keywords used to ignore detection.
+    # Default: []
+    ignore:
+      - "0C0C"
+
+  exhaustivestruct:
+    # Struct Patterns is list of expressions to match struct packages and names.
+    # The struct packages have the form `example.com/package.ExampleStruct`.
+    # The matching patterns can use matching syntax from https://pkg.go.dev/path#Match.
+    # If this list is empty, all structs are tested.
+    # Default: []
+    struct-patterns:
+      - '*.Test'
+      - 'example.com/package.ExampleStruct'
\ No newline at end of file
diff --git a/pkg/command/db.go b/pkg/command/db.go
index 7bdf5b3..77e90d6 100644
--- a/pkg/command/db.go
+++ b/pkg/command/db.go
@@ -16,8 +16,6 @@ func init() {
 }
 
 type DB struct {
-	dummyCommand
-
 	dbType      string
 	db          *sql.DB
 	isFinished  bool
diff --git a/pkg/command/shell.go b/pkg/command/shell.go
index eb108ba..8d2fc3a 100644
--- a/pkg/command/shell.go
+++ b/pkg/command/shell.go
@@ -11,6 +11,12 @@ import (
 	"syscall"
 )
 
+const (
+	WINDOWS_OS = "windows"
+	LINUX_OS   = "linux"
+	MAC_OS     = "darwin"
+)
+
 func init() {
 	commands["shell"] = &Shell{}
 }
@@ -57,7 +63,7 @@ func ExecShell(command string) {
 	fmt.Println(command)
 	fmt.Println()
 	var cmd *exec.Cmd
-	if runtime.GOOS == "windows" {
+	if runtime.GOOS == WINDOWS_OS {
 		cmd = exec.Command("cmd", "/C", command)
 	} else {
 		cmd = exec.Command("bash", "-c", command)
@@ -80,7 +86,7 @@ func ExecShell(command string) {
 	case <-done:
 		return
 	case <-sigChan:
-		if runtime.GOOS == "windows" {
+		if runtime.GOOS == WINDOWS_OS {
 			_ = cmd.Process.Signal(os.Kill)
 		} else {
 			_ = syscall.Kill(cmd.Process.Pid, syscall.SIGINT)
@@ -92,11 +98,11 @@ func ExecShell(command string) {
 func getOSInfo() string {
 	var version string
 	switch runtime.GOOS {
-	case "darwin":
+	case MAC_OS:
 		version = darwinVersion()
-	case "linux":
+	case LINUX_OS:
 		version = linuxVersion()
-	case "windows":
+	case WINDOWS_OS:
 		version = windowsVersion()
 	}
 	return fmt.Sprintf("%s %s", runtime.GOOS, version)
diff --git a/pkg/command/ssh.go b/pkg/command/ssh.go
index b976023..a74d1a5 100644
--- a/pkg/command/ssh.go
+++ b/pkg/command/ssh.go
@@ -17,8 +17,6 @@ func init() {
 }
 
 type Ssh struct {
-	dummyCommand
-
 	client      *ssh.Client
 	host        string
 	osInfo      string
diff --git a/pkg/command/summary.go b/pkg/command/summary.go
index 344b2e4..bd8cae3 100644
--- a/pkg/command/summary.go
+++ b/pkg/command/summary.go
@@ -3,6 +3,7 @@ package command
 import (
 	"fmt"
 	"net/http"
+	"net/url"
 	"regexp"
 	"strings"
 
@@ -44,8 +45,14 @@ func (c *Summary) Prompts(input string) []string {
 	return []string{prompt}
 }
 
-func crawl(url string) string {
-	resp, err := http.Get(url)
+func crawl(url_input string) string {
+	// Validate the URL
+	if _, err := url.ParseRequestURI(url_input); err != nil {
+		fmt.Println("Invalid URL: ", err)
+		return ""
+	}
+
+	resp, err := http.Get(url_input)
 	if err != nil {
 		fmt.Println("Error fetching URL: ", err)
 		return ""