From 5b7775f33e999514651935ad9dc5083c89119168 Mon Sep 17 00:00:00 2001
From: Patryk Hegenberg <patrykhegenberg@gmail.com>
Date: Sat, 18 Jan 2025 14:34:16 +0100
Subject: [PATCH] refactor: seperate files, function and structs into seperate
 packages

---
 .goreleaser.yaml                              |   3 +
 cmd.go => cmd/cmd.go                          |  13 +-
 install_cmd.go => cmd/install_cmd.go          |  23 ++-
 .../package_commands.go                       |   2 +-
 remove_cmd.go => cmd/remove_cmd.go            |  23 ++-
 search_cmd.go => cmd/search_cmd.go            |  20 +--
 main.go => cmd/sst/main.go                    |   3 +-
 config.toml                                   |  99 ++++++++++-
 config.go => config/config.go                 |  11 +-
 dotfiles.go                                   |  42 -----
 dotfiles/dotfiles.go                          |  43 +++++
 go.mod                                        |   7 +-
 go.sum                                        |   2 -
 internal/shell/shell.go                       |  23 +++
 magefile.go                                   |   1 -
 model.go                                      | 164 ------------------
 cargo.go => packagemanager/cargo.go           |  16 +-
 cargo_test.go => packagemanager/cargo_test.go |  11 +-
 flatpak.go => packagemanager/flatpak.go       |  30 +++-
 .../flatpak_test.go                           |   8 +-
 golang.go => packagemanager/golang.go         |  16 +-
 .../golang_test.go                            |  12 +-
 homebrew.go => packagemanager/homebrew.go     |  15 +-
 .../homebrew_test.go                          |  12 +-
 osinfo.go => packagemanager/os.go             |  52 +++---
 osinfo_test.go => packagemanager/os_test.go   |  23 +--
 package.go => packagemanager/package.go       |  19 +-
 .../packagemanager.go                         |   2 +-
 pipx.go => packagemanager/pipx.go             |  16 +-
 pipx_test.go => packagemanager/pipx_test.go   |  12 +-
 packagemanager/utils.go                       |  19 ++
 tui.go                                        | 146 ----------------
 tui/tui.go                                    | 115 ++++++++++++
 utils.go                                      |  64 -------
 utils/utils.go                                |  32 ++++
 utils/utils_test.go                           |  40 +++++
 utils_test.go                                 |  85 ---------
 37 files changed, 547 insertions(+), 677 deletions(-)
 rename cmd.go => cmd/cmd.go (87%)
 rename install_cmd.go => cmd/install_cmd.go (65%)
 rename package_commands.go => cmd/package_commands.go (99%)
 rename remove_cmd.go => cmd/remove_cmd.go (63%)
 rename search_cmd.go => cmd/search_cmd.go (77%)
 rename main.go => cmd/sst/main.go (55%)
 rename config.go => config/config.go (59%)
 delete mode 100644 dotfiles.go
 create mode 100644 dotfiles/dotfiles.go
 create mode 100644 internal/shell/shell.go
 delete mode 100644 model.go
 rename cargo.go => packagemanager/cargo.go (60%)
 rename cargo_test.go => packagemanager/cargo_test.go (72%)
 rename flatpak.go => packagemanager/flatpak.go (71%)
 rename flatpak_test.go => packagemanager/flatpak_test.go (83%)
 rename golang.go => packagemanager/golang.go (60%)
 rename golang_test.go => packagemanager/golang_test.go (72%)
 rename homebrew.go => packagemanager/homebrew.go (68%)
 rename homebrew_test.go => packagemanager/homebrew_test.go (73%)
 rename osinfo.go => packagemanager/os.go (81%)
 rename osinfo_test.go => packagemanager/os_test.go (63%)
 rename package.go => packagemanager/package.go (62%)
 rename packagemanager.go => packagemanager/packagemanager.go (90%)
 rename pipx.go => packagemanager/pipx.go (60%)
 rename pipx_test.go => packagemanager/pipx_test.go (71%)
 create mode 100644 packagemanager/utils.go
 delete mode 100644 tui.go
 create mode 100644 tui/tui.go
 delete mode 100644 utils.go
 create mode 100644 utils/utils.go
 create mode 100644 utils/utils_test.go
 delete mode 100644 utils_test.go

diff --git a/.goreleaser.yaml b/.goreleaser.yaml
index 3a2d8da..2f22d5a 100644
--- a/.goreleaser.yaml
+++ b/.goreleaser.yaml
@@ -3,6 +3,9 @@
 
 version: 2
 
+env:
+  - GITHUB_TOKEN={{ .Env.CODEBERG_TOKEN }}
+
 before:
   hooks:
     - go mod tidy
diff --git a/cmd.go b/cmd/cmd.go
similarity index 87%
rename from cmd.go
rename to cmd/cmd.go
index 598ccdb..102668c 100644
--- a/cmd.go
+++ b/cmd/cmd.go
@@ -1,23 +1,24 @@
-package main
+package cmd
 
 import (
 	"fmt"
 	"os"
+	"system_setup_tool/tui"
 
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 )
 
-var rootCmd = &cobra.Command{
+var RootCmd = &cobra.Command{
 	Use:   "system_setup_tool",
 	Short: "Installs packages based on TOML configuration",
-	Run:   run,
+	Run:   tui.Run,
 }
 
 func init() {
 	cobra.OnInitialize(initConfig)
-	rootCmd.PersistentFlags().StringP("config", "c", "", "Path to the configuration file")
-	viper.BindPFlag("config", rootCmd.PersistentFlags().Lookup("config"))
+	RootCmd.PersistentFlags().StringP("config", "c", "", "Path to the configuration file")
+	viper.BindPFlag("config", RootCmd.PersistentFlags().Lookup("config"))
 
 	addCmd.Flags().StringP("name", "n", "", "The name of the package you want to add")
 	addCmd.Flags().StringP("manager", "m", "", "The package manager you want to add the package to (homebrew|cargo|flatpak|pipx|go)")
@@ -38,7 +39,7 @@ func init() {
 	searchCmd.Flags().StringP("manager", "m", "", "The package manager you want to search a package with. (Options: os|homebrew|flatpak)")
 
 	packageCmd.AddCommand(addCmd, deleteCmd, showCmd, enableCmd)
-	rootCmd.AddCommand(packageCmd, searchCmd, installCmd, removeCmd)
+	RootCmd.AddCommand(packageCmd, searchCmd, installCmd, removeCmd)
 }
 
 func initConfig() {
diff --git a/install_cmd.go b/cmd/install_cmd.go
similarity index 65%
rename from install_cmd.go
rename to cmd/install_cmd.go
index 468ab9f..ed36c43 100644
--- a/install_cmd.go
+++ b/cmd/install_cmd.go
@@ -1,8 +1,11 @@
-package main
+package cmd
 
 import (
 	"fmt"
 	"log"
+	"system_setup_tool/utils"
+
+	pm "system_setup_tool/packagemanager"
 
 	"github.com/spf13/cobra"
 )
@@ -14,29 +17,25 @@ var installCmd = &cobra.Command{
 	Run: func(cmd *cobra.Command, args []string) {
 		packageName := args[0]
 		managerName, _ := cmd.Flags().GetString("manager")
-		var manager PackageManager
+		var manager pm.PackageManager
 		switch managerName {
 		case "os":
-			opSys, err := getLinuxDistribution()
-			if err != nil {
-				log.Printf("error getting OS information: %v", err)
-			}
-			sudoPassword, err := getSudoPassword()
+			sudoPassword, err := utils.GetSudoPassword()
 			if err != nil {
 				log.Fatal(err)
 			}
-			osManager := NewOSManager(opSys, sudoPassword, []string{packageName})
+			osManager := pm.NewOSManager(sudoPassword)
 			if err := osManager.Install([]string{packageName}); err != nil {
 				log.Printf("error: %v\n", err)
 			}
 		case "homebrew":
-			manager = &HomebrewManager{}
+			manager = &pm.HomebrewManager{}
 		case "cargo":
-			manager = &CargoManager{}
+			manager = &pm.CargoManager{}
 		case "pipx":
-			manager = &PipxManager{}
+			manager = &pm.PipxManager{}
 		case "flatpak":
-			manager = &FlatpakManager{}
+			manager = &pm.FlatpakManager{}
 		default:
 			fmt.Println("No PackageManager found")
 		}
diff --git a/package_commands.go b/cmd/package_commands.go
similarity index 99%
rename from package_commands.go
rename to cmd/package_commands.go
index a73126d..d3b50f5 100644
--- a/package_commands.go
+++ b/cmd/package_commands.go
@@ -1,4 +1,4 @@
-package main
+package cmd
 
 import (
 	"fmt"
diff --git a/remove_cmd.go b/cmd/remove_cmd.go
similarity index 63%
rename from remove_cmd.go
rename to cmd/remove_cmd.go
index 6609578..7e36cc6 100644
--- a/remove_cmd.go
+++ b/cmd/remove_cmd.go
@@ -1,7 +1,10 @@
-package main
+package cmd
 
 import (
 	"log"
+	"system_setup_tool/utils"
+
+	pm "system_setup_tool/packagemanager"
 
 	"github.com/spf13/cobra"
 )
@@ -13,29 +16,25 @@ var removeCmd = &cobra.Command{
 	Run: func(cmd *cobra.Command, args []string) {
 		packageName := args[0]
 		managerName, _ := cmd.Flags().GetString("manager")
-		var manager PackageManager
+		var manager pm.PackageManager
 		switch managerName {
 		case "os":
-			opSys, err := getLinuxDistribution()
-			if err != nil {
-				log.Printf("error getting OS information: %v", err)
-			}
-			sudoPassword, err := getSudoPassword()
+			sudoPassword, err := utils.GetSudoPassword()
 			if err != nil {
 				log.Fatal(err)
 			}
-			osManager := NewOSManager(opSys, sudoPassword, []string{packageName})
+			osManager := pm.NewOSManager(sudoPassword)
 			if err := osManager.Install([]string{packageName}); err != nil {
 				log.Printf("error: %v\n", err)
 			}
 		case "homebrew":
-			manager = &HomebrewManager{}
+			manager = &pm.HomebrewManager{}
 		case "cargo":
-			manager = &CargoManager{}
+			manager = &pm.CargoManager{}
 		case "pipx":
-			manager = &PipxManager{}
+			manager = &pm.PipxManager{}
 		case "flatpak":
-			manager = &FlatpakManager{}
+			manager = &pm.FlatpakManager{}
 		default:
 		}
 		if err := manager.RemovePackage(packageName); err != nil {
diff --git a/search_cmd.go b/cmd/search_cmd.go
similarity index 77%
rename from search_cmd.go
rename to cmd/search_cmd.go
index 8514355..1bc77bc 100644
--- a/search_cmd.go
+++ b/cmd/search_cmd.go
@@ -1,10 +1,11 @@
-package main
+package cmd
 
 import (
 	"fmt"
-	"log"
 	"strings"
 
+	pm "system_setup_tool/packagemanager"
+
 	"github.com/spf13/cobra"
 )
 
@@ -18,16 +19,11 @@ var searchCmd = &cobra.Command{
 		if managerName == "os" {
 			managerName = "OS Package Manager"
 		}
-		opSys, err := getLinuxDistribution()
-		if err != nil {
-			log.Printf("error getting OS information: %v", err)
-			return
-		}
 
-		managers := []PackageManager{
-			NewOSManager(opSys, "", nil),
-			&HomebrewManager{},
-			&FlatpakManager{},
+		managers := []pm.PackageManager{
+			pm.NewOSManager(""),
+			&pm.HomebrewManager{},
+			&pm.FlatpakManager{},
 		}
 
 		if managerName != "" {
@@ -57,7 +53,7 @@ func displayResults(results []string, manager string) {
 	}
 }
 
-func searchAndDisplayResults(manager PackageManager, packageName string) {
+func searchAndDisplayResults(manager pm.PackageManager, packageName string) {
 	fmt.Printf("Searching in %s:\n", manager.Name())
 	results := manager.SearchPackage(packageName)
 	displayResults(results, manager.Name())
diff --git a/main.go b/cmd/sst/main.go
similarity index 55%
rename from main.go
rename to cmd/sst/main.go
index 376027d..959f384 100644
--- a/main.go
+++ b/cmd/sst/main.go
@@ -3,10 +3,11 @@ package main
 import (
 	"log"
 	"os"
+	"system_setup_tool/cmd"
 )
 
 func main() {
-	if err := rootCmd.Execute(); err != nil {
+	if err := cmd.RootCmd.Execute(); err != nil {
 		log.Println(err)
 		os.Exit(1)
 	}
diff --git a/config.toml b/config.toml
index e3f63a0..9d94c2c 100644
--- a/config.toml
+++ b/config.toml
@@ -12,20 +12,107 @@ packages = ['typst-cli']
 
 [package_managers.flatpak]
 enable = true
-packages = ['com.spotify.Client', 'us.zoom.Zoom', 'org.zotero.Zotero', 'com.google.AndroidStudio', 'io.freetubeapp.FreeTube', 'com.discordapp.Discord', 'com.nextcloud.desktopclient.nextcloud', 'com.github.tchx84.Flatseal', 'io.github.flattool.Warehouse', 'org.onlyoffice.desktopeditors']
+packages = [
+  'com.spotify.Client',
+  'us.zoom.Zoom',
+  'org.zotero.Zotero',
+  'com.google.AndroidStudio',
+  'io.freetubeapp.FreeTube',
+  'com.discordapp.Discord',
+  'com.nextcloud.desktopclient.nextcloud',
+  'com.github.tchx84.Flatseal',
+  'io.github.flattool.Warehouse',
+  'org.onlyoffice.desktopeditors',
+]
 
 [package_managers.go]
 enable = true
-packages = ['github.com/stefanlogue/meteor', 'golang.org/x/tools/gopls', 'github.com/go-delve/delve/cmd/dlv', 'github.com/air-verse/air']
+packages = [
+  'github.com/stefanlogue/meteor',
+  'golang.org/x/tools/gopls',
+  'github.com/go-delve/delve/cmd/dlv',
+  'github.com/air-verse/air',
+]
 
 [package_managers.homebrew]
 enable = true
-packages = ['fd', 'fzf', 'ripgrep', 'neovim', 'helix', 'node', 'yazi', 'zk', 'bat', 'bottom', 'btop', 'git-cliff', 'glow', 'lazygit', 'goreleaser', 'harlequin', 'mage', 'posting', 'typst', 'wails', 'zoxide', 'lsd', 'jq', 'yq', 'timewarrior', 'tmux', 'fastfetch', 'stow', 'distrobox']
+packages = [
+  'oh-my-posh',
+  'fd',
+  'fzf',
+  'ripgrep',
+  'neovim',
+  'helix',
+  'node',
+  'yazi',
+  'zk',
+  'bat',
+  'bottom',
+  'btop',
+  'git-cliff',
+  'glow',
+  'lazygit',
+  'goreleaser',
+  'harlequin',
+  'mage',
+  'posting',
+  'typst',
+  'wails',
+  'zoxide',
+  'lsd',
+  'jq',
+  'yq',
+  'timewarrior',
+  'tmux',
+  'fastfetch',
+  'stow',
+  'distrobox',
+]
 
 [package_managers.pipx]
 enable = true
 packages = ['euporie']
 
-[packages]
-headless = ['git', 'curl', 'wget', 'biber', 'bear', 'docker', 'docker-compose', 'zsh', 'npm', 'task', 'tree-sitter-cli', 'python3-pip', 'latexmk', 'luarocks']
-non_headless = ['flameshot', 'fuzzel', 'hyprcursor', 'hypridle', 'hyprland', 'hyprland-qtutils', 'hyprlock', 'hyprpaper', 'hyprutils', 'kitty', 'mako', 'SwayNotificationCenter', 'SwayNotificationCenter-zsh-completion', 'mpv', 'pidgin', 'remmina', 'thunderbird-i18n-de', 'virt-manager', 'vlc', 'waybar', 'nwg-panel', 'nwg-look', 'xdg-desktop-portal-hyprland', 'zathura', 'zathura-pdf-mupdf']
+[package_managers.os]
+enable = true
+packages = [
+  'git',
+  'curl',
+  'wget',
+  'biber',
+  'bear',
+  'docker',
+  'docker-compose',
+  'zsh',
+  'npm',
+  'task',
+  'tree-sitter-cli',
+  'python3-pip',
+  'latexmk',
+  'luarocks',
+  'flameshot',
+  'fuzzel',
+  'hyprcursor',
+  'hypridle',
+  'hyprland',
+  'hyprland-qtutils',
+  'hyprlock',
+  'hyprpaper',
+  'hyprutils',
+  'kitty',
+  'mako',
+  'SwayNotificationCenter',
+  'SwayNotificationCenter-zsh-completion',
+  'mpv',
+  'pidgin',
+  'remmina',
+  'thunderbird-i18n-de',
+  'virt-manager',
+  'vlc',
+  'waybar',
+  'nwg-panel',
+  'nwg-look',
+  'xdg-desktop-portal-hyprland',
+  'zathura',
+  'zathura-pdf-mupdf',
+]
diff --git a/config.go b/config/config.go
similarity index 59%
rename from config.go
rename to config/config.go
index 287a3fa..fddb47a 100644
--- a/config.go
+++ b/config/config.go
@@ -1,4 +1,9 @@
-package main
+package config
+
+import (
+	"system_setup_tool/dotfiles"
+	pm "system_setup_tool/packagemanager"
+)
 
 type PackageManagerConfig struct {
 	Enable   bool     `mapstructure:"enable"`
@@ -7,7 +12,7 @@ type PackageManagerConfig struct {
 
 type Config struct {
 	Headless        bool                            `mapstructure:"headless"`
-	Packages        Packages                        `mapstructure:"packages"`
+	Packages        pm.Packages                     `mapstructure:"packages"`
 	PackageManagers map[string]PackageManagerConfig `mapstructure:"package_managers"`
-	Dotfiles        DotfilesConfig                  `mapstructure:"dotfiles"`
+	Dotfiles        dotfiles.DotfilesConfig         `mapstructure:"dotfiles"`
 }
diff --git a/dotfiles.go b/dotfiles.go
deleted file mode 100644
index 849da76..0000000
--- a/dotfiles.go
+++ /dev/null
@@ -1,42 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"log"
-	"os"
-	"path/filepath"
-)
-
-type DotfilesConfig struct {
-	Enable  bool   `mapstructure:"enable"`
-	GitRepo string `mapstructure:"git_repo"`
-}
-
-func setupDotfiles(config DotfilesConfig) error {
-	if _, err := execLookPath("git"); err != nil {
-		return fmt.Errorf("git ist nicht installiert")
-	}
-
-	if _, err := execLookPath("stow"); err != nil {
-		return fmt.Errorf("gnu stow ist nicht installiert")
-	}
-
-	dotfilesDir := filepath.Join(os.Getenv("HOME"), "dotfiles")
-
-	cmd := execCommand("git", "clone", config.GitRepo, dotfilesDir)
-	if err := cmd.Run(); err != nil {
-		return fmt.Errorf("fehler beim Klonen der Dotfiles: %v", err)
-	}
-
-	if err := os.Chdir(dotfilesDir); err != nil {
-		return fmt.Errorf("fehler beim Wechseln in das Dotfiles-Verzeichnis: %v", err)
-	}
-
-	cmd = execCommand("stow", ".", "--override='*'")
-	if err := cmd.Run(); err != nil {
-		log.Printf("Fehler beim Linken: %v", err)
-	}
-	fmt.Printf("Alles erfolgreich verlinkt\n")
-
-	return nil
-}
diff --git a/dotfiles/dotfiles.go b/dotfiles/dotfiles.go
new file mode 100644
index 0000000..f6eea51
--- /dev/null
+++ b/dotfiles/dotfiles.go
@@ -0,0 +1,43 @@
+package dotfiles
+
+import (
+	"fmt"
+	"log"
+	"os"
+	"path/filepath"
+	"system_setup_tool/internal/shell"
+)
+
+type DotfilesConfig struct {
+	Enable  bool   `mapstructure:"enable"`
+	GitRepo string `mapstructure:"git_repo"`
+}
+
+func SetupDotfiles(config DotfilesConfig) error {
+	if _, err := shell.ExecLookPath("git"); err != nil {
+		return fmt.Errorf("git ist nicht installiert")
+	}
+
+	if _, err := shell.ExecLookPath("stow"); err != nil {
+		return fmt.Errorf("gnu stow not installed")
+	}
+
+	dotfilesDir := filepath.Join(os.Getenv("HOME"), "dotfiles")
+
+	cmd := shell.ExecCommand("git", "clone", config.GitRepo, dotfilesDir)
+	if err := cmd.Run(); err != nil {
+		return fmt.Errorf("error cloning dotfiles: %v", err)
+	}
+
+	if err := os.Chdir(dotfilesDir); err != nil {
+		return fmt.Errorf("error changing into dotfiles directory: %v", err)
+	}
+
+	cmd = shell.ExecCommand("stow", ".", "--override='*'")
+	if err := cmd.Run(); err != nil {
+		log.Printf("error creating links: %v", err)
+	}
+	fmt.Printf("all linked properly\n")
+
+	return nil
+}
diff --git a/go.mod b/go.mod
index f283e32..72088a7 100644
--- a/go.mod
+++ b/go.mod
@@ -3,10 +3,7 @@ module system_setup_tool
 go 1.23.4
 
 require (
-	github.com/charmbracelet/bubbles v0.20.0
-	github.com/charmbracelet/bubbletea v1.2.4
 	github.com/charmbracelet/huh v0.6.0
-	github.com/charmbracelet/lipgloss v1.0.0
 	github.com/magefile/mage v1.15.0
 	github.com/mitchellh/mapstructure v1.5.0
 	github.com/schollz/progressbar/v3 v3.18.0
@@ -18,7 +15,9 @@ require (
 	github.com/atotto/clipboard v0.1.4 // indirect
 	github.com/aymanbagabas/go-osc52/v2 v2.0.1 // indirect
 	github.com/catppuccin/go v0.2.0 // indirect
-	github.com/charmbracelet/harmonica v0.2.0 // indirect
+	github.com/charmbracelet/bubbles v0.20.0 // indirect
+	github.com/charmbracelet/bubbletea v1.2.4 // indirect
+	github.com/charmbracelet/lipgloss v1.0.0 // indirect
 	github.com/charmbracelet/x/ansi v0.4.5 // indirect
 	github.com/charmbracelet/x/exp/strings v0.0.0-20240722160745-212f7b056ed0 // indirect
 	github.com/charmbracelet/x/term v0.2.1 // indirect
diff --git a/go.sum b/go.sum
index f3365b5..1146891 100644
--- a/go.sum
+++ b/go.sum
@@ -10,8 +10,6 @@ github.com/charmbracelet/bubbles v0.20.0 h1:jSZu6qD8cRQ6k9OMfR1WlM+ruM8fkPWkHvQW
 github.com/charmbracelet/bubbles v0.20.0/go.mod h1:39slydyswPy+uVOHZ5x/GjwVAFkCsV8IIVy+4MhzwwU=
 github.com/charmbracelet/bubbletea v1.2.4 h1:KN8aCViA0eps9SCOThb2/XPIlea3ANJLUkv3KnQRNCE=
 github.com/charmbracelet/bubbletea v1.2.4/go.mod h1:Qr6fVQw+wX7JkWWkVyXYk/ZUQ92a6XNekLXa3rR18MM=
-github.com/charmbracelet/harmonica v0.2.0 h1:8NxJWRWg/bzKqqEaaeFNipOu77YR5t8aSwG4pgaUBiQ=
-github.com/charmbracelet/harmonica v0.2.0/go.mod h1:KSri/1RMQOZLbw7AHqgcBycp8pgJnQMYYT8QZRqZ1Ao=
 github.com/charmbracelet/huh v0.6.0 h1:mZM8VvZGuE0hoDXq6XLxRtgfWyTI3b2jZNKh0xWmax8=
 github.com/charmbracelet/huh v0.6.0/go.mod h1:GGNKeWCeNzKpEOh/OJD8WBwTQjV3prFAtQPpLv+AVwU=
 github.com/charmbracelet/lipgloss v1.0.0 h1:O7VkGDvqEdGi93X+DeqsQ7PKHDgtQfF8j8/O2qFMQNg=
diff --git a/internal/shell/shell.go b/internal/shell/shell.go
new file mode 100644
index 0000000..5b7a8b7
--- /dev/null
+++ b/internal/shell/shell.go
@@ -0,0 +1,23 @@
+package shell
+
+import (
+	"fmt"
+	"os"
+	"os/exec"
+)
+
+var (
+	ExecCommand  = exec.Command
+	ExecLookPath = exec.LookPath
+)
+
+func ExecuteShellCommand(command string, env string) error {
+	cmd := ExecCommand("bash", "-c", command)
+	cmd.Env = os.Environ()
+	cmd.Env = append(cmd.Env, env)
+	output, err := cmd.CombinedOutput()
+	if err != nil {
+		return fmt.Errorf("befehl fehlgeschlagen: %v\nAusgabe: %s", err, output)
+	}
+	return nil
+}
diff --git a/magefile.go b/magefile.go
index 3603577..eb85b08 100644
--- a/magefile.go
+++ b/magefile.go
@@ -1,5 +1,4 @@
 //go:build mage
-// +build mage
 
 package main
 
diff --git a/model.go b/model.go
deleted file mode 100644
index 41cb2e6..0000000
--- a/model.go
+++ /dev/null
@@ -1,164 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"log"
-	"os"
-	"path/filepath"
-	"strings"
-
-	"github.com/charmbracelet/bubbles/progress"
-	"github.com/charmbracelet/bubbles/spinner"
-	tea "github.com/charmbracelet/bubbletea"
-	"github.com/charmbracelet/lipgloss"
-)
-
-type model struct {
-	packages     []string
-	index        int
-	width        int
-	height       int
-	spinner      spinner.Model
-	progress     progress.Model
-	done         bool
-	sudoPassword string
-	os           OS
-}
-
-func (m model) installSpecialSoftware() error {
-	if _, err := execLookPath("oh-my-posh"); err == nil {
-		fmt.Println("Oh-my-posh ist bereits installiert")
-	} else {
-		poshCommand := "curl -s https://ohmyposh.dev/install.sh | bash -s"
-		if err := installPackage(poshCommand, "", ""); err != nil {
-			return err
-		}
-	}
-	homeDir, err := os.UserHomeDir()
-	if err != nil {
-		return fmt.Errorf("Fehler beim Ermitteln des Home-Verzeichnisses: %v", err)
-	}
-
-	ohMyZshDir := filepath.Join(homeDir, ".oh-my-zsh")
-	if _, err := os.Stat(ohMyZshDir); !os.IsNotExist(err) {
-		fmt.Println("Oh My Zsh ist bereits installiert.")
-		return nil
-	}
-
-	fmt.Println("Installiere Oh My Zsh...")
-	err = executeShellCommand(`sh -c "$(curl -fsSL https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh)"`, "")
-	if err != nil {
-		log.Printf("Fehler bei der Installation von Oh My Zsh: %v\n", err)
-	}
-
-	plugins := []string{
-		"git clone https://github.com/zsh-users/zsh-autosuggestions.git ${ZSH_CUSTOM:-$HOME/.oh-my-zsh/custom}/plugins/zsh-autosuggestions",
-		"git clone https://github.com/zsh-users/zsh-syntax-highlighting.git ${ZSH_CUSTOM:-$HOME/.oh-my-zsh/custom}/plugins/zsh-syntax-highlighting",
-		"git clone https://github.com/zdharma-continuum/fast-syntax-highlighting.git ${ZSH_CUSTOM:-$HOME/.oh-my-zsh/custom}/plugins/fast-syntax-highlighting",
-		"git clone --depth 1 -- https://github.com/marlonrichert/zsh-autocomplete.git ${ZSH_CUSTOM:-$HOME/.oh-my-zsh/custom}/plugins/zsh-autocomplete",
-	}
-
-	for _, plugin := range plugins {
-		err := executeShellCommand(plugin, "")
-		if err != nil {
-			log.Printf("Fehler bei der Installation des Plugins: %v\n", err)
-		}
-	}
-
-	fmt.Println("Oh My Zsh wurde erfolgreich installiert.")
-	return nil
-}
-
-func newModel(packages []string, sudoPassword string, os *OS) model {
-	p := progress.New(
-		progress.WithDefaultGradient(),
-		progress.WithWidth(40),
-		progress.WithoutPercentage(),
-	)
-	s := spinner.New()
-	s.Style = lipgloss.NewStyle().Foreground(lipgloss.Color("63"))
-	return model{
-		packages:     packages,
-		spinner:      s,
-		progress:     p,
-		sudoPassword: sudoPassword,
-		os:           *os,
-	}
-}
-
-func (m model) Init() tea.Cmd {
-	return tea.Batch(m.installPackageCmd(m.packages[m.index]), m.spinner.Tick)
-}
-
-func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
-	switch msg := msg.(type) {
-	case tea.WindowSizeMsg:
-		m.width, m.height = msg.Width, msg.Height
-	case tea.KeyMsg:
-		switch msg.String() {
-		case "ctrl+c", "esc", "q":
-			return m, tea.Quit
-		}
-	case installedPkgMsg:
-		pkg := m.packages[m.index]
-		if m.index >= len(m.packages)-1 {
-			m.done = true
-			return m, tea.Sequence(
-				tea.Printf("%s %s", checkMark, pkg),
-				tea.Quit,
-			)
-		}
-
-		m.index++
-		progressCmd := m.progress.SetPercent(float64(m.index) / float64(len(m.packages)))
-
-		return m, tea.Batch(
-			progressCmd,
-			tea.Printf("%s %s", checkMark, pkg),
-			m.installPackageCmd(m.packages[m.index]),
-		)
-	case spinner.TickMsg:
-		var cmd tea.Cmd
-		m.spinner, cmd = m.spinner.Update(msg)
-		return m, cmd
-	case progress.FrameMsg:
-		newModel, cmd := m.progress.Update(msg)
-		if newModel, ok := newModel.(progress.Model); ok {
-			m.progress = newModel
-		}
-		return m, cmd
-	}
-	return m, nil
-}
-
-func (m model) View() string {
-	n := len(m.packages)
-	w := lipgloss.Width(fmt.Sprintf("%d", n))
-
-	if m.done {
-		return doneStyle.Render(fmt.Sprintf("Done! Installed %d packages.\n", n))
-	}
-
-	pkgCount := fmt.Sprintf(" %*d/%*d", w, m.index, w, n)
-
-	spin := m.spinner.View() + " "
-	prog := m.progress.View()
-	cellsAvail := max(0, m.width-lipgloss.Width(spin+prog+pkgCount))
-
-	pkgName := currentPkgNameStyle.Render(m.packages[m.index])
-	info := lipgloss.NewStyle().MaxWidth(cellsAvail).Render("Installing " + pkgName)
-
-	cellsRemaining := max(0, m.width-lipgloss.Width(spin+info+prog+pkgCount))
-	gap := strings.Repeat(" ", cellsRemaining)
-
-	return spin + info + gap + prog + pkgCount
-}
-
-func (m model) installPackageCmd(pkg string) tea.Cmd {
-	return func() tea.Msg {
-		if err := installPackage(m.os.InstallCommand, pkg, m.sudoPassword); err != nil {
-			log.Printf("Fehler beim Installieren von %s: %v", pkg, err)
-		}
-		return installedPkgMsg(pkg)
-	}
-}
diff --git a/cargo.go b/packagemanager/cargo.go
similarity index 60%
rename from cargo.go
rename to packagemanager/cargo.go
index a5a80d8..9623a89 100644
--- a/cargo.go
+++ b/packagemanager/cargo.go
@@ -1,4 +1,6 @@
-package main
+package packagemanager
+
+import "system_setup_tool/internal/shell"
 
 type CargoManager struct{}
 
@@ -6,7 +8,7 @@ func (c *CargoManager) Install(packages []string) error {
 	if len(packages) == 0 {
 		return nil
 	}
-	err := installWithProgress(c, packages)
+	err := InstallWithProgress(c, packages)
 	if err != nil {
 		return err
 	}
@@ -18,25 +20,25 @@ func (c *CargoManager) Name() string {
 }
 
 func (c *CargoManager) InstallManager() error {
-	if _, err := execLookPath("brew"); err != nil {
+	if _, err := shell.ExecLookPath("brew"); err != nil {
 		installHomebrew()
 	}
 
-	if _, err := execLookPath("cargo"); err == nil {
+	if _, err := shell.ExecLookPath("cargo"); err == nil {
 		return nil
 	}
 
-	cmd := execCommand("brew", "install", "rust")
+	cmd := shell.ExecCommand("brew", "install", "rust")
 	return cmd.Run()
 }
 
 func (c *CargoManager) InstallPackage(pkg string) error {
-	cmd := execCommand("cargo", "install", pkg)
+	cmd := shell.ExecCommand("cargo", "install", pkg)
 	return cmd.Run()
 }
 
 func (c *CargoManager) RemovePackage(pkg string) error {
-	cmd := execCommand("cargo", "uninstall", pkg)
+	cmd := shell.ExecCommand("cargo", "uninstall", pkg)
 	return cmd.Run()
 }
 
diff --git a/cargo_test.go b/packagemanager/cargo_test.go
similarity index 72%
rename from cargo_test.go
rename to packagemanager/cargo_test.go
index 5129f56..ef491de 100644
--- a/cargo_test.go
+++ b/packagemanager/cargo_test.go
@@ -1,8 +1,9 @@
 // cargo_test.go
-package main
+package packagemanager
 
 import (
 	"os/exec"
+	"system_setup_tool/internal/shell"
 	"testing"
 )
 
@@ -17,13 +18,13 @@ func TestCargoManager_InstallManager(t *testing.T) {
 	cm := &CargoManager{}
 
 	// Mock exec.LookPath
-	execLookPath = func(file string) (string, error) {
+	shell.ExecLookPath = func(file string) (string, error) {
 		if file == "cargo" {
 			return "/usr/bin/cargo", nil
 		}
 		return "", exec.ErrNotFound
 	}
-	defer func() { execLookPath = exec.LookPath }()
+	defer func() { shell.ExecLookPath = exec.LookPath }()
 
 	if err := cm.InstallManager(); err != nil {
 		t.Errorf("Expected no error, got %v", err)
@@ -34,10 +35,10 @@ func TestCargoManager_InstallPackage(t *testing.T) {
 	cm := &CargoManager{}
 
 	// Mock exec.Command
-	execCommand = func(name string, arg ...string) *exec.Cmd {
+	shell.ExecCommand = func(name string, arg ...string) *exec.Cmd {
 		return exec.Command("echo", "mocked cargo install")
 	}
-	defer func() { execCommand = exec.Command }()
+	defer func() { shell.ExecCommand = exec.Command }()
 
 	if err := cm.InstallPackage("test-package"); err != nil {
 		t.Errorf("Expected no error, got %v", err)
diff --git a/flatpak.go b/packagemanager/flatpak.go
similarity index 71%
rename from flatpak.go
rename to packagemanager/flatpak.go
index 0c926bc..4c30842 100644
--- a/flatpak.go
+++ b/packagemanager/flatpak.go
@@ -1,10 +1,10 @@
-package main
+package packagemanager
 
 import (
 	"fmt"
 	"log"
-	"os/exec"
 	"strings"
+	"system_setup_tool/internal/shell"
 )
 
 type FlatpakManager struct {
@@ -13,11 +13,23 @@ type FlatpakManager struct {
 	Config       FlatpakConfig
 }
 
+func NewFlatpakManager(sudoPassword string, config FlatpakConfig) *FlatpakManager {
+	os, err := GetLinuxDistribution()
+	if err != nil {
+		log.Fatalf("error geting os information: %v", err)
+	}
+	return &FlatpakManager{
+		OS:           os,
+		SudoPassword: sudoPassword,
+		Config:       config,
+	}
+}
+
 func (f *FlatpakManager) Install(packages []string) error {
 	if len(packages) == 0 {
 		return nil
 	}
-	err := installWithProgress(f, packages)
+	err := InstallWithProgress(f, packages)
 	if err != nil {
 		return err
 	}
@@ -29,7 +41,7 @@ func (f *FlatpakManager) Name() string {
 }
 
 func (f *FlatpakManager) InstallManager() error {
-	if _, err := exec.LookPath("flatpak"); err == nil {
+	if _, err := shell.ExecLookPath("flatpak"); err == nil {
 		return nil
 	}
 
@@ -69,7 +81,7 @@ func installFlatpak(os *OS, sudoPassword string) error {
 		return fmt.Errorf("keine Flatpak-Installation für OS %s definiert", os.ID)
 	}
 
-	if err := installPackage(command, "", sudoPassword); err != nil {
+	if err := InstallPackage(command, "", sudoPassword); err != nil {
 		return fmt.Errorf("fehler bei der Flatpak-Installation: %v", err)
 	}
 	return nil
@@ -77,7 +89,7 @@ func installFlatpak(os *OS, sudoPassword string) error {
 
 func addFlatpakRemotes(remotes []Remote) error {
 	for _, remote := range remotes {
-		cmd := execCommand("flatpak", "remote-add", "--if-not-exists", remote.Name, remote.URL)
+		cmd := shell.ExecCommand("flatpak", "remote-add", "--if-not-exists", remote.Name, remote.URL)
 		if err := cmd.Run(); err != nil {
 			return fmt.Errorf("fehler beim Hinzufügen des Remotes %s: %v", remote.Name, err)
 		}
@@ -86,17 +98,17 @@ func addFlatpakRemotes(remotes []Remote) error {
 }
 
 func (f *FlatpakManager) InstallPackage(pkg string) error {
-	cmd := execCommand("flatpak", "install", "-y", pkg)
+	cmd := shell.ExecCommand("flatpak", "install", "-y", pkg)
 	return cmd.Run()
 }
 
 func (f *FlatpakManager) RemovePackage(pkg string) error {
-	cmd := execCommand("flatpak", "uninstall", "-y", pkg)
+	cmd := shell.ExecCommand("flatpak", "uninstall", "-y", pkg)
 	return cmd.Run()
 }
 
 func (f *FlatpakManager) SearchPackage(pkg string) []string {
-	cmd := execCommand("flatpak", "search", pkg)
+	cmd := shell.ExecCommand("flatpak", "search", pkg)
 	packages, err := cmd.Output()
 	if err != nil {
 		log.Printf("error fetching %s packages: %v", f.Name(), err)
diff --git a/flatpak_test.go b/packagemanager/flatpak_test.go
similarity index 83%
rename from flatpak_test.go
rename to packagemanager/flatpak_test.go
index c99e2d5..96fad8f 100644
--- a/flatpak_test.go
+++ b/packagemanager/flatpak_test.go
@@ -1,8 +1,8 @@
-// flatpak_test.go
-package main
+package packagemanager
 
 import (
 	"os/exec"
+	"system_setup_tool/internal/shell"
 	"testing"
 )
 
@@ -33,10 +33,10 @@ func TestFlatpakManager_InstallPackage(t *testing.T) {
 	fm := &FlatpakManager{}
 
 	// Mock exec.Command
-	execCommand = func(name string, arg ...string) *exec.Cmd {
+	shell.ExecCommand = func(name string, arg ...string) *exec.Cmd {
 		return exec.Command("echo", "mocked flatpak install")
 	}
-	defer func() { execCommand = exec.Command }()
+	defer func() { shell.ExecCommand = exec.Command }()
 
 	if err := fm.InstallPackage("test-package"); err != nil {
 		t.Errorf("Expected no error, got %v", err)
diff --git a/golang.go b/packagemanager/golang.go
similarity index 60%
rename from golang.go
rename to packagemanager/golang.go
index 690c2d4..9392f89 100644
--- a/golang.go
+++ b/packagemanager/golang.go
@@ -1,4 +1,6 @@
-package main
+package packagemanager
+
+import "system_setup_tool/internal/shell"
 
 type GolangManager struct{}
 
@@ -6,7 +8,7 @@ func (g *GolangManager) Install(packages []string) error {
 	if len(packages) == 0 {
 		return nil
 	}
-	err := installWithProgress(g, packages)
+	err := InstallWithProgress(g, packages)
 	if err != nil {
 		return err
 	}
@@ -18,25 +20,25 @@ func (g *GolangManager) Name() string {
 }
 
 func (g *GolangManager) InstallManager() error {
-	if _, err := execLookPath("brew"); err != nil {
+	if _, err := shell.ExecLookPath("brew"); err != nil {
 		installHomebrew()
 	}
 
-	if _, err := execLookPath("go"); err == nil {
+	if _, err := shell.ExecLookPath("go"); err == nil {
 		return nil
 	}
 
-	cmd := execCommand("brew", "install", "golang")
+	cmd := shell.ExecCommand("brew", "install", "golang")
 	return cmd.Run()
 }
 
 func (g *GolangManager) InstallPackage(pkg string) error {
-	cmd := execCommand("go", "install", pkg+"@latest")
+	cmd := shell.ExecCommand("go", "install", pkg+"@latest")
 	return cmd.Run()
 }
 
 func (g *GolangManager) RemovePackage(pkg string) error {
-	cmd := execCommand("go", "uninstall", pkg)
+	cmd := shell.ExecCommand("go", "uninstall", pkg)
 	return cmd.Run()
 }
 
diff --git a/golang_test.go b/packagemanager/golang_test.go
similarity index 72%
rename from golang_test.go
rename to packagemanager/golang_test.go
index 5e67b0a..930fe0b 100644
--- a/golang_test.go
+++ b/packagemanager/golang_test.go
@@ -1,8 +1,8 @@
-// golang_test.go
-package main
+package packagemanager
 
 import (
 	"os/exec"
+	"system_setup_tool/internal/shell"
 	"testing"
 )
 
@@ -17,13 +17,13 @@ func TestGolangManager_InstallManager(t *testing.T) {
 	gm := &GolangManager{}
 
 	// Mock exec.LookPath
-	execLookPath = func(file string) (string, error) {
+	shell.ExecLookPath = func(file string) (string, error) {
 		if file == "go" {
 			return "/usr/local/go/bin/go", nil
 		}
 		return "", exec.ErrNotFound
 	}
-	defer func() { execLookPath = exec.LookPath }()
+	defer func() { shell.ExecLookPath = exec.LookPath }()
 
 	if err := gm.InstallManager(); err != nil {
 		t.Errorf("Expected no error, got %v", err)
@@ -34,10 +34,10 @@ func TestGolangManager_InstallPackage(t *testing.T) {
 	gm := &GolangManager{}
 
 	// Mock exec.Command
-	execCommand = func(name string, arg ...string) *exec.Cmd {
+	shell.ExecCommand = func(name string, arg ...string) *exec.Cmd {
 		return exec.Command("echo", "mocked go install")
 	}
-	defer func() { execCommand = exec.Command }()
+	defer func() { shell.ExecCommand = exec.Command }()
 
 	if err := gm.InstallPackage("github.com/test/package"); err != nil {
 		t.Errorf("Expected no error, got %v", err)
diff --git a/homebrew.go b/packagemanager/homebrew.go
similarity index 68%
rename from homebrew.go
rename to packagemanager/homebrew.go
index 9cd259d..93cbcd6 100644
--- a/homebrew.go
+++ b/packagemanager/homebrew.go
@@ -1,9 +1,10 @@
-package main
+package packagemanager
 
 import (
 	"fmt"
 	"log"
 	"strings"
+	"system_setup_tool/internal/shell"
 )
 
 type HomebrewManager struct{}
@@ -12,7 +13,7 @@ func (h *HomebrewManager) Install(packages []string) error {
 	if len(packages) == 0 {
 		return nil
 	}
-	err := installWithProgress(h, packages)
+	err := InstallWithProgress(h, packages)
 	if err != nil {
 		return err
 	}
@@ -24,7 +25,7 @@ func (h *HomebrewManager) Name() string {
 }
 
 func (h *HomebrewManager) InstallManager() error {
-	if _, err := execLookPath("brew"); err == nil {
+	if _, err := shell.ExecLookPath("brew"); err == nil {
 		return nil
 	}
 
@@ -32,7 +33,7 @@ func (h *HomebrewManager) InstallManager() error {
 }
 
 func installHomebrew() error {
-	err := executeShellCommand("sh -c $(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)", "NONINTERACTE=1")
+	err := shell.ExecuteShellCommand("sh -c $(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)", "NONINTERACTE=1")
 	if err != nil {
 		return fmt.Errorf("fehler bei der Installation von Homebrew: %v", err)
 	}
@@ -40,17 +41,17 @@ func installHomebrew() error {
 }
 
 func (h *HomebrewManager) InstallPackage(pkg string) error {
-	cmd := execCommand("brew", "install", pkg)
+	cmd := shell.ExecCommand("brew", "install", pkg)
 	return cmd.Run()
 }
 
 func (h *HomebrewManager) RemovePackage(pkg string) error {
-	cmd := execCommand("brew", "uninstall", pkg)
+	cmd := shell.ExecCommand("brew", "uninstall", pkg)
 	return cmd.Run()
 }
 
 func (h *HomebrewManager) SearchPackage(pkg string) []string {
-	cmd := execCommand("brew", "search", pkg)
+	cmd := shell.ExecCommand("brew", "search", pkg)
 	packages, err := cmd.Output()
 	if err != nil {
 		log.Printf("error fetching %s packages: %v", h.Name(), err)
diff --git a/homebrew_test.go b/packagemanager/homebrew_test.go
similarity index 73%
rename from homebrew_test.go
rename to packagemanager/homebrew_test.go
index 72da6ee..14128f0 100644
--- a/homebrew_test.go
+++ b/packagemanager/homebrew_test.go
@@ -1,8 +1,8 @@
-// homebrew_test.go
-package main
+package packagemanager
 
 import (
 	"os/exec"
+	"system_setup_tool/internal/shell"
 	"testing"
 )
 
@@ -17,13 +17,13 @@ func TestHomebrewManager_InstallManager(t *testing.T) {
 	hm := &HomebrewManager{}
 
 	// Mock exec.LookPath and executeShellCommand
-	execLookPath = func(file string) (string, error) {
+	shell.ExecLookPath = func(file string) (string, error) {
 		if file == "brew" {
 			return "/usr/local/bin/brew", nil
 		}
 		return "", exec.ErrNotFound
 	}
-	defer func() { execLookPath = exec.LookPath }()
+	defer func() { shell.ExecLookPath = exec.LookPath }()
 
 	if err := hm.InstallManager(); err != nil {
 		t.Errorf("Expected no error, got %v", err)
@@ -34,10 +34,10 @@ func TestHomebrewManager_InstallPackage(t *testing.T) {
 	hm := &HomebrewManager{}
 
 	// Mock exec.Command
-	execCommand = func(name string, arg ...string) *exec.Cmd {
+	shell.ExecCommand = func(name string, arg ...string) *exec.Cmd {
 		return exec.Command("echo", "mocked brew install")
 	}
-	defer func() { execCommand = exec.Command }()
+	defer func() { shell.ExecCommand = exec.Command }()
 
 	if err := hm.InstallPackage("test-package"); err != nil {
 		t.Errorf("Expected no error, got %v", err)
diff --git a/osinfo.go b/packagemanager/os.go
similarity index 81%
rename from osinfo.go
rename to packagemanager/os.go
index bba7397..e337347 100644
--- a/osinfo.go
+++ b/packagemanager/os.go
@@ -1,27 +1,26 @@
-package main
+package packagemanager
 
 import (
 	"fmt"
 	"log"
 	"os"
 	"strings"
-
-	tea "github.com/charmbracelet/bubbletea"
+	"system_setup_tool/internal/shell"
 )
 
 type OSManager struct {
 	OS           *OS
 	SudoPassword string
-	Packages     []string
-	Model        model
 }
 
-func NewOSManager(os *OS, sudoPassword string, packages []string) *OSManager {
+func NewOSManager(sudoPassword string) *OSManager {
+	os, err := GetLinuxDistribution()
+	if err != nil {
+		log.Fatalf("error geting os information: %v", err)
+	}
 	return &OSManager{
 		OS:           os,
 		SudoPassword: sudoPassword,
-		Packages:     packages,
-		Model:        newModel(packages, sudoPassword, os),
 	}
 }
 
@@ -32,42 +31,39 @@ func (o *OSManager) Name() string {
 func (o *OSManager) InstallManager() error { return nil }
 
 func (o *OSManager) Install(packages []string) error {
-	o.Packages = packages
-	o.Model = newModel(packages, o.SudoPassword, o.OS)
-
-	p := tea.NewProgram(o.Model)
-	_, err := p.Run()
-	return err
+	if len(packages) == 0 {
+		return nil
+	}
+	err := InstallWithProgress(o, packages)
+	if err != nil {
+		return err
+	}
+	return nil
 }
 
 func (o *OSManager) InstallPackage(pkg string) error {
-	return installPackage(o.OS.InstallCommand, pkg, o.SudoPassword)
+	return InstallPackage(o.OS.InstallCommand, pkg, o.SudoPassword)
 }
 
 func (o *OSManager) InstallBuildEssentials() error {
-	return installBuildEssentials(o.OS, o.SudoPassword)
-}
-
-func (o *OSManager) InstallSpecialSoftware() error {
-	return o.Model.installSpecialSoftware()
+	return InstallBuildEssentials(o.OS, o.SudoPassword)
 }
 
 func (o *OSManager) RemovePackage(pkg string) error {
 	fullCmd := fmt.Sprintf("%s %s", o.OS.RemoveCommand, pkg)
-	command := execCommand("sudo", "-S", "sh", "-c", fullCmd)
+	command := shell.ExecCommand("sudo", "-S", "sh", "-c", fullCmd)
 	command.Stdin = strings.NewReader(o.SudoPassword + "\n")
 	return command.Run()
 }
 
 func (o *OSManager) SearchPackage(pkg string) []string {
-
 	cmdParts := strings.Fields(o.OS.SearchCommand)
 	if len(cmdParts) == 0 {
 		log.Printf("Invalid search command for OS package manager")
 		return []string{}
 	}
 
-	cmd := execCommand(cmdParts[0], append(cmdParts[1:], pkg)...)
+	cmd := shell.ExecCommand(cmdParts[0], append(cmdParts[1:], pkg)...)
 	packages, err := cmd.Output()
 	if err != nil {
 		log.Printf("Error fetching %s packages: %v", o.OS.PackageManager, err)
@@ -127,7 +123,7 @@ func parseOsRelease(osRelease string) *OS {
 	return &result
 }
 
-func getLinuxDistribution() (*OS, error) {
+func GetLinuxDistribution() (*OS, error) {
 	_, err := os.Stat("/etc/os-release")
 	if os.IsNotExist(err) {
 		return nil, fmt.Errorf("unable to read system information")
@@ -155,7 +151,7 @@ func (os *OS) getPackageManager() error {
 			"pacman",
 		}
 		for _, pmname := range pmcommands {
-			_, err := execLookPath(pmname)
+			_, err := shell.ExecLookPath(pmname)
 			if err == nil {
 				os.PackageManager = pmname
 				return nil
@@ -213,7 +209,7 @@ func (os *OS) getDeleteCommand() error {
 	}
 }
 
-func installBuildEssentials(os *OS, sudoPassword string) error {
+func InstallBuildEssentials(os *OS, sudoPassword string) error {
 	var command string
 	switch os.PackageManager {
 	case "pacman":
@@ -227,8 +223,8 @@ func installBuildEssentials(os *OS, sudoPassword string) error {
 	}
 
 	fmt.Printf("Installiere Build Essentials für %s...\n", os.Name)
-	if err := installPackage(command, "", sudoPassword); err != nil {
-		return fmt.Errorf("fehler bei der Installation der Build Essentials: %v", err)
+	if err := InstallPackage(command, "", sudoPassword); err != nil {
+		return fmt.Errorf("error installing Build Essentials: %v", err)
 	}
 	return nil
 }
diff --git a/osinfo_test.go b/packagemanager/os_test.go
similarity index 63%
rename from osinfo_test.go
rename to packagemanager/os_test.go
index ddca2ec..25dbf58 100644
--- a/osinfo_test.go
+++ b/packagemanager/os_test.go
@@ -1,26 +1,20 @@
-// osmanager_test.go
-package main
+package packagemanager
 
 import (
 	"testing"
 )
 
 func TestNewOSManager(t *testing.T) {
-	os := &OS{ID: "ubuntu", PackageManager: "apt"}
 	sudoPassword := "testpassword"
-	packages := []string{"git", "curl"}
 
-	manager := NewOSManager(os, sudoPassword, packages)
+	manager := NewOSManager(sudoPassword)
 
-	if manager.OS != os {
-		t.Errorf("Expected OS to be %v, got %v", os, manager.OS)
+	if manager.OS == nil {
+		t.Error("Expected OS to be non-nil")
 	}
 	if manager.SudoPassword != sudoPassword {
 		t.Errorf("Expected SudoPassword to be %s, got %s", sudoPassword, manager.SudoPassword)
 	}
-	if len(manager.Packages) != len(packages) {
-		t.Errorf("Expected Packages length to be %d, got %d", len(packages), len(manager.Packages))
-	}
 }
 
 func TestOSManagerName(t *testing.T) {
@@ -47,4 +41,13 @@ VERSION_ID="20.04"
 	if os.Version != "20.04" {
 		t.Errorf("Expected Version to be '20.04', got %s", os.Version)
 	}
+	if os.PackageManager != "apt" {
+		t.Errorf("Expected PackageManager to be 'apt', got %s", os.PackageManager)
+	}
+	if os.InstallCommand != "apt install -y" {
+		t.Errorf("Expected InstallCommand to be 'apt install -y', got %s", os.InstallCommand)
+	}
+	if os.SearchCommand != "apt search" {
+		t.Errorf("Expected SearchCommand to be 'apt search', got %s", os.SearchCommand)
+	}
 }
diff --git a/package.go b/packagemanager/package.go
similarity index 62%
rename from package.go
rename to packagemanager/package.go
index 77b7a46..ca38da6 100644
--- a/package.go
+++ b/packagemanager/package.go
@@ -1,8 +1,10 @@
-package main
+package packagemanager
 
 import (
 	"fmt"
+	"log"
 	"strings"
+	"system_setup_tool/internal/shell"
 )
 
 type Packages struct {
@@ -10,26 +12,17 @@ type Packages struct {
 	NonHeadless []string `mapstructure:"non_headless"`
 }
 
-func installPackage(cmd, pkg, sudoPassword string) error {
+func InstallPackage(cmd, pkg, sudoPassword string) error {
 	fullCmd := fmt.Sprintf("%s %s", cmd, pkg)
-	command := execCommand("sudo", "-S", "sh", "-c", fullCmd)
+	command := shell.ExecCommand("sudo", "-S", "sh", "-c", fullCmd)
 	command.Stdin = strings.NewReader(sudoPassword + "\n")
 	output, err := command.CombinedOutput()
 	if err != nil {
 		if strings.Contains(string(output), "not found") || strings.Contains(string(output), "no matching package") || strings.Contains(string(output), "Keine Übereinstimmung") || strings.Contains(string(output), "Ziel nicht gefunden") {
-			unavailablePackages = append(unavailablePackages, pkg)
+			log.Printf("Package %s not available\n", pkg)
 			return nil
 		}
 		return fmt.Errorf("failed to install %s: %v\n%s", pkg, err, string(output))
 	}
 	return nil
 }
-
-func printUnavailablePackages() {
-	if len(unavailablePackages) > 0 {
-		fmt.Println("\nFolgende Pakete waren nicht verfügbar:")
-		for _, pkg := range unavailablePackages {
-			fmt.Printf("- %s\n", pkg)
-		}
-	}
-}
diff --git a/packagemanager.go b/packagemanager/packagemanager.go
similarity index 90%
rename from packagemanager.go
rename to packagemanager/packagemanager.go
index a5f17c2..48362d2 100644
--- a/packagemanager.go
+++ b/packagemanager/packagemanager.go
@@ -1,4 +1,4 @@
-package main
+package packagemanager
 
 type PackageManager interface {
 	Install(packages []string) error
diff --git a/pipx.go b/packagemanager/pipx.go
similarity index 60%
rename from pipx.go
rename to packagemanager/pipx.go
index 8f6820a..a4e1716 100644
--- a/pipx.go
+++ b/packagemanager/pipx.go
@@ -1,4 +1,6 @@
-package main
+package packagemanager
+
+import "system_setup_tool/internal/shell"
 
 type PipxManager struct{}
 
@@ -7,7 +9,7 @@ func (p *PipxManager) Install(packages []string) error {
 		return nil
 	}
 
-	err := installWithProgress(p, packages)
+	err := InstallWithProgress(p, packages)
 	if err != nil {
 		return err
 	}
@@ -19,25 +21,25 @@ func (p *PipxManager) Name() string {
 }
 
 func (p *PipxManager) InstallManager() error {
-	if _, err := execLookPath("brew"); err != nil {
+	if _, err := shell.ExecLookPath("brew"); err != nil {
 		installHomebrew()
 	}
 
-	if _, err := execLookPath("pipx"); err == nil {
+	if _, err := shell.ExecLookPath("pipx"); err == nil {
 		return nil
 	}
 
-	cmd := execCommand("brew", "install", "pipx")
+	cmd := shell.ExecCommand("brew", "install", "pipx")
 	return cmd.Run()
 }
 
 func (p *PipxManager) InstallPackage(pkg string) error {
-	cmd := execCommand("pipx", "install", pkg)
+	cmd := shell.ExecCommand("pipx", "install", pkg)
 	return cmd.Run()
 }
 
 func (p *PipxManager) RemovePackage(pkg string) error {
-	cmd := execCommand("pipx", "uninstall", pkg)
+	cmd := shell.ExecCommand("pipx", "uninstall", pkg)
 	return cmd.Run()
 }
 
diff --git a/pipx_test.go b/packagemanager/pipx_test.go
similarity index 71%
rename from pipx_test.go
rename to packagemanager/pipx_test.go
index a7f7389..b87fb2c 100644
--- a/pipx_test.go
+++ b/packagemanager/pipx_test.go
@@ -1,8 +1,8 @@
-// pipx_test.go
-package main
+package packagemanager
 
 import (
 	"os/exec"
+	"system_setup_tool/internal/shell"
 	"testing"
 )
 
@@ -17,13 +17,13 @@ func TestPipxManager_InstallManager(t *testing.T) {
 	pm := &PipxManager{}
 
 	// Mock exec.LookPath
-	execLookPath = func(file string) (string, error) {
+	shell.ExecLookPath = func(file string) (string, error) {
 		if file == "pipx" {
 			return "/usr/bin/pipx", nil
 		}
 		return "", exec.ErrNotFound
 	}
-	defer func() { execLookPath = exec.LookPath }()
+	defer func() { shell.ExecLookPath = exec.LookPath }()
 
 	if err := pm.InstallManager(); err != nil {
 		t.Errorf("Expected no error, got %v", err)
@@ -34,10 +34,10 @@ func TestPipxManager_InstallPackage(t *testing.T) {
 	pm := &PipxManager{}
 
 	// Mock exec.Command
-	execCommand = func(name string, arg ...string) *exec.Cmd {
+	shell.ExecCommand = func(name string, arg ...string) *exec.Cmd {
 		return exec.Command("echo", "mocked pipx install")
 	}
-	defer func() { execCommand = exec.Command }()
+	defer func() { shell.ExecCommand = exec.Command }()
 
 	if err := pm.InstallPackage("test-package"); err != nil {
 		t.Errorf("Expected no error, got %v", err)
diff --git a/packagemanager/utils.go b/packagemanager/utils.go
new file mode 100644
index 0000000..293679c
--- /dev/null
+++ b/packagemanager/utils.go
@@ -0,0 +1,19 @@
+package packagemanager
+
+import (
+	"log"
+
+	"github.com/schollz/progressbar/v3"
+)
+
+func InstallWithProgress(manager PackageManager, packages []string) error {
+	bar := progressbar.Default(int64(len(packages)), "Installiere "+manager.Name()+"-Pakete...")
+	for _, pkg := range packages {
+		err := manager.InstallPackage(pkg)
+		if err != nil {
+			log.Printf("\nError installing %s: %v\n", pkg, err)
+		}
+		bar.Add(1)
+	}
+	return nil
+}
diff --git a/tui.go b/tui.go
deleted file mode 100644
index ab1be10..0000000
--- a/tui.go
+++ /dev/null
@@ -1,146 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"log"
-
-	"github.com/charmbracelet/huh"
-	"github.com/charmbracelet/lipgloss"
-	"github.com/mitchellh/mapstructure"
-	"github.com/spf13/cobra"
-	"github.com/spf13/viper"
-)
-
-var (
-	currentPkgNameStyle = lipgloss.NewStyle().Foreground(lipgloss.Color("211"))
-	doneStyle           = lipgloss.NewStyle().Margin(1, 2)
-	checkMark           = lipgloss.NewStyle().Foreground(lipgloss.Color("42")).SetString("✓")
-	unavailablePackages []string
-)
-
-type installedPkgMsg string
-
-func run(cmd *cobra.Command, args []string) {
-	os, err := getLinuxDistribution()
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	sudoPassword, err := getSudoPassword()
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	var cfg Config
-	if err := viper.Unmarshal(&cfg); err != nil {
-		log.Fatalf("Fehler beim Lesen der Konfiguration: %v", err)
-	}
-
-	form := huh.NewForm(
-		huh.NewGroup(
-			huh.NewConfirm().
-				Title("Möchten Sie eine headless Installation durchführen?").
-				Value(&cfg.Headless),
-		),
-	).WithTheme(huh.ThemeCatppuccin())
-
-	if err := form.Run(); err != nil {
-		log.Fatalf("Fehler bei der Benutzerabfrage: %v", err)
-	}
-
-	unavailablePackages = []string{}
-	osManager := NewOSManager(os, sudoPassword, cfg.Packages.Headless)
-
-	if err := osManager.Install(cfg.Packages.Headless); err != nil {
-		log.Printf("Warnung bei der Installation der Headless-Pakete: %v", err)
-	}
-	if !cfg.Headless {
-		if err := osManager.Install(cfg.Packages.NonHeadless); err != nil {
-			log.Printf("Warnung bei der Installation der Non-Headless-Pakete: %v", err)
-		}
-	}
-
-	printUnavailablePackages()
-
-	var installBuild bool
-	form = huh.NewForm(
-		huh.NewGroup(
-			huh.NewConfirm().
-				Title("Möchten Sie die Build Essentials installieren?").
-				Value(&installBuild),
-		),
-	).WithTheme(huh.ThemeCatppuccin())
-
-	err = form.Run()
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	if installBuild {
-		if err := osManager.InstallBuildEssentials(); err != nil {
-			log.Printf("Warnung: %v", err)
-		}
-	}
-
-	var installShellExtensions bool
-	form = huh.NewForm(
-		huh.NewGroup(
-			huh.NewConfirm().
-				Title("Möchten Sie die Shell-Extensions installieren?").
-				Value(&installShellExtensions),
-		),
-	).WithTheme(huh.ThemeCatppuccin())
-
-	err = form.Run()
-	if err != nil {
-		log.Fatal(err)
-	}
-	if installShellExtensions {
-		if err := osManager.InstallSpecialSoftware(); err != nil {
-			log.Printf("Warnung bei der Installation spezieller Software: %v", err)
-		}
-	}
-
-	for name, config := range cfg.PackageManagers {
-		if config.Enable {
-			var manager PackageManager
-			switch name {
-			case "homebrew":
-				manager = &HomebrewManager{}
-			case "go":
-				manager = &GolangManager{}
-			case "cargo":
-				manager = &CargoManager{}
-			case "pipx":
-				manager = &PipxManager{}
-			case "flatpak":
-				flatpakConfig := FlatpakConfig{}
-				if err := mapstructure.Decode(config, &flatpakConfig); err != nil {
-					log.Printf("Fehler beim Dekodieren der Flatpak-Konfiguration: %v", err)
-					continue
-				}
-				manager = &FlatpakManager{
-					OS:           os,
-					SudoPassword: sudoPassword,
-					Config:       flatpakConfig,
-				}
-			default:
-				log.Printf("Unbekannter Paketmanager: %s", name)
-				continue
-			}
-			if err := manager.InstallManager(); err != nil {
-				log.Printf("Warnung Packagemanager %s nicht vorhanden und konnte nicht installiert werden: %v", manager.Name(), err)
-			}
-
-			if err := manager.Install(config.Packages); err != nil {
-				log.Printf("Warnung bei %s-Paketen: %v", manager.Name(), err)
-			}
-		}
-	}
-	if cfg.Dotfiles.Enable {
-		fmt.Println("\nKonfiguriere Dotfiles...")
-		if err := setupDotfiles(cfg.Dotfiles); err != nil {
-			log.Printf("Warnung bei Dotfiles-Setup: %v", err)
-		}
-	}
-}
diff --git a/tui/tui.go b/tui/tui.go
new file mode 100644
index 0000000..a51004e
--- /dev/null
+++ b/tui/tui.go
@@ -0,0 +1,115 @@
+package tui
+
+import (
+	"fmt"
+	"log"
+	"system_setup_tool/config"
+	"system_setup_tool/dotfiles"
+	"system_setup_tool/utils"
+
+	pm "system_setup_tool/packagemanager"
+
+	"github.com/charmbracelet/huh"
+	"github.com/mitchellh/mapstructure"
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+)
+
+type installedPkgMsg string
+
+func Run(cmd *cobra.Command, args []string) {
+	sudoPassword, err := utils.GetSudoPassword()
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	var cfg config.Config
+	if err := viper.Unmarshal(&cfg); err != nil {
+		log.Fatalf("Fehler beim Lesen der Konfiguration: %v", err)
+	}
+
+	// form := huh.NewForm(
+	// 	huh.NewGroup(
+	// 		huh.NewConfirm().
+	// 			Title("Möchten Sie eine headless Installation durchführen?").
+	// 			Value(&cfg.Headless),
+	// 	),
+	// ).WithTheme(huh.ThemeCatppuccin())
+	//
+	// if err := form.Run(); err != nil {
+	// 	log.Fatalf("Fehler bei der Benutzerabfrage: %v", err)
+	// }
+	//
+	// osManager := pm.NewOSManager(sudoPassword)
+	//
+	// if err := osManager.Install(cfg.Packages.Headless); err != nil {
+	// 	log.Printf("Warnung bei der Installation der Headless-Pakete: %v", err)
+	// }
+	// if !cfg.Headless {
+	// 	if err := osManager.Install(cfg.Packages.NonHeadless); err != nil {
+	// 		log.Printf("Warnung bei der Installation der Non-Headless-Pakete: %v", err)
+	// 	}
+	// }
+	//
+
+	for name, config := range cfg.PackageManagers {
+		if config.Enable {
+			var manager pm.PackageManager
+			switch name {
+			case "os":
+				manager = pm.NewOSManager(sudoPassword)
+			case "homebrew":
+				manager = &pm.HomebrewManager{}
+			case "go":
+				manager = &pm.GolangManager{}
+			case "cargo":
+				manager = &pm.CargoManager{}
+			case "pipx":
+				manager = &pm.PipxManager{}
+			case "flatpak":
+				flatpakConfig := pm.FlatpakConfig{}
+				if err := mapstructure.Decode(config, &flatpakConfig); err != nil {
+					log.Printf("error decoding flatpak config: %v", err)
+					continue
+				}
+				manager = pm.NewFlatpakManager(sudoPassword, flatpakConfig)
+			default:
+				log.Printf("unknown packagemanager: %s", name)
+				continue
+			}
+			if err := manager.InstallManager(); err != nil {
+				log.Printf("warning packagemanager %s not installed and could not be installed: %v", manager.Name(), err)
+			}
+
+			if err := manager.Install(config.Packages); err != nil {
+				log.Printf("warning at %s-packages: %v", manager.Name(), err)
+			}
+		}
+	}
+	osManager := pm.NewOSManager(sudoPassword)
+	var installBuild bool
+	form := huh.NewForm(
+		huh.NewGroup(
+			huh.NewConfirm().
+				Title("Möchten Sie die Build Essentials installieren?").
+				Value(&installBuild),
+		),
+	).WithTheme(huh.ThemeCatppuccin())
+
+	err = form.Run()
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	if installBuild {
+		if err := osManager.InstallBuildEssentials(); err != nil {
+			log.Printf("Warnung: %v", err)
+		}
+	}
+	if cfg.Dotfiles.Enable {
+		fmt.Println("\nconfiguring dotfiles...")
+		if err := dotfiles.SetupDotfiles(cfg.Dotfiles); err != nil {
+			log.Printf("Warnung bei Dotfiles-Setup: %v", err)
+		}
+	}
+}
diff --git a/utils.go b/utils.go
deleted file mode 100644
index 58f6896..0000000
--- a/utils.go
+++ /dev/null
@@ -1,64 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"log"
-	"os"
-	"os/exec"
-
-	"github.com/charmbracelet/huh"
-	"github.com/schollz/progressbar/v3"
-)
-
-var (
-	execCommand  = exec.Command
-	execLookPath = exec.LookPath
-)
-
-func getSudoPassword() (string, error) {
-	var password string
-	form := huh.NewForm(
-		huh.NewGroup(
-			huh.NewInput().
-				Title("Bitte geben Sie Ihr sudo-Passwort ein").
-				EchoMode(huh.EchoModePassword).
-				Value(&password),
-		),
-	).WithTheme(huh.ThemeCatppuccin())
-
-	err := form.Run()
-	if err != nil {
-		return "", fmt.Errorf("fehler bei der Passwortabfrage: %v", err)
-	}
-	return password, nil
-}
-
-func max(a, b int) int {
-	if a > b {
-		return a
-	}
-	return b
-}
-
-func executeShellCommand(command string, env string) error {
-	cmd := execCommand("bash", "-c", command)
-	cmd.Env = os.Environ()
-	cmd.Env = append(cmd.Env, env)
-	output, err := cmd.CombinedOutput()
-	if err != nil {
-		return fmt.Errorf("befehl fehlgeschlagen: %v\nAusgabe: %s", err, output)
-	}
-	return nil
-}
-
-func installWithProgress(manager PackageManager, packages []string) error {
-	bar := progressbar.Default(int64(len(packages)), "Installiere "+manager.Name()+"-Pakete...")
-	for _, pkg := range packages {
-		err := manager.InstallPackage(pkg)
-		if err != nil {
-			log.Printf("\nError installing %s: %v\n", pkg, err)
-		}
-		bar.Add(1)
-	}
-	return nil
-}
diff --git a/utils/utils.go b/utils/utils.go
new file mode 100644
index 0000000..9024846
--- /dev/null
+++ b/utils/utils.go
@@ -0,0 +1,32 @@
+package utils
+
+import (
+	"fmt"
+
+	"github.com/charmbracelet/huh"
+)
+
+func GetSudoPassword() (string, error) {
+	var password string
+	form := huh.NewForm(
+		huh.NewGroup(
+			huh.NewInput().
+				Title("Bitte geben Sie Ihr sudo-Passwort ein").
+				EchoMode(huh.EchoModePassword).
+				Value(&password),
+		),
+	).WithTheme(huh.ThemeCatppuccin())
+
+	err := form.Run()
+	if err != nil {
+		return "", fmt.Errorf("fehler bei der Passwortabfrage: %v", err)
+	}
+	return password, nil
+}
+
+func max(a, b int) int {
+	if a > b {
+		return a
+	}
+	return b
+}
diff --git a/utils/utils_test.go b/utils/utils_test.go
new file mode 100644
index 0000000..243432e
--- /dev/null
+++ b/utils/utils_test.go
@@ -0,0 +1,40 @@
+package utils
+
+import (
+	"os/exec"
+	"system_setup_tool/internal/shell"
+	"testing"
+)
+
+func TestMax(t *testing.T) {
+	tests := []struct {
+		a, b, want int
+	}{
+		{1, 2, 2},
+		{5, 3, 5},
+		{0, 0, 0},
+		{-1, -5, -1},
+	}
+
+	for _, tt := range tests {
+		got := max(tt.a, tt.b)
+		if got != tt.want {
+			t.Errorf("max(%d, %d) = %d; want %d", tt.a, tt.b, got, tt.want)
+		}
+	}
+}
+
+func TestExecuteShellCommand(t *testing.T) {
+	// Mock execCommand
+	oldExecCommand := shell.ExecCommand
+	defer func() { shell.ExecCommand = oldExecCommand }()
+
+	shell.ExecCommand = func(command string, args ...string) *exec.Cmd {
+		return exec.Command("echo", "mocked command")
+	}
+
+	err := shell.ExecuteShellCommand("test command", "TEST_ENV=value")
+	if err != nil {
+		t.Errorf("executeShellCommand() error = %v; want nil", err)
+	}
+}
diff --git a/utils_test.go b/utils_test.go
deleted file mode 100644
index ffd2eaa..0000000
--- a/utils_test.go
+++ /dev/null
@@ -1,85 +0,0 @@
-package main
-
-import (
-	"os/exec"
-	"testing"
-)
-
-func TestMax(t *testing.T) {
-	tests := []struct {
-		a, b, want int
-	}{
-		{1, 2, 2},
-		{5, 3, 5},
-		{0, 0, 0},
-		{-1, -5, -1},
-	}
-
-	for _, tt := range tests {
-		got := max(tt.a, tt.b)
-		if got != tt.want {
-			t.Errorf("max(%d, %d) = %d; want %d", tt.a, tt.b, got, tt.want)
-		}
-	}
-}
-
-func TestExecuteShellCommand(t *testing.T) {
-	// Mock execCommand
-	oldExecCommand := execCommand
-	defer func() { execCommand = oldExecCommand }()
-
-	execCommand = func(command string, args ...string) *exec.Cmd {
-		return exec.Command("echo", "mocked command")
-	}
-
-	err := executeShellCommand("test command", "TEST_ENV=value")
-	if err != nil {
-		t.Errorf("executeShellCommand() error = %v; want nil", err)
-	}
-}
-
-func TestInstallWithProgress(t *testing.T) {
-	mockManager := &MockPackageManager{
-		packages: []string{"pkg1", "pkg2"},
-	}
-
-	err := installWithProgress(mockManager, mockManager.packages)
-	if err != nil {
-		t.Errorf("installWithProgress() error = %v; want nil", err)
-	}
-
-	if len(mockManager.installedPackages) != len(mockManager.packages) {
-		t.Errorf("installWithProgress() installed %d packages; want %d", len(mockManager.installedPackages), len(mockManager.packages))
-	}
-}
-
-type MockPackageManager struct {
-	packages          []string
-	installedPackages []string
-}
-
-func (m *MockPackageManager) Install(packages []string) error {
-	m.installedPackages = append(m.installedPackages, packages...)
-	return nil
-}
-
-func (m *MockPackageManager) InstallPackage(pkg string) error {
-	m.installedPackages = append(m.installedPackages, pkg)
-	return nil
-}
-
-func (m *MockPackageManager) InstallManager() error {
-	return nil
-}
-
-func (m *MockPackageManager) Name() string {
-	return "MockManager"
-}
-
-func (m *MockPackageManager) RemovePackage(pkg string) error {
-	return nil
-}
-
-func (m *MockPackageManager) SearchPackage(pkg string) []string {
-	return nil
-}