diff --git a/Makefile b/Makefile
index 182d088..bc66483 100644
--- a/Makefile
+++ b/Makefile
@@ -15,8 +15,10 @@ fmt:
 lint:
 	bash -O globstar -c 'shellcheck -x bin/mona modules/**/*.sh'
 	shfmt -d bin modules recipes tests
+	ec
 
 test:
 	bats -r tests
 
 ci: lint test
+
diff --git a/README.md b/README.md
index 971eb92..76a9a81 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# MonaRepo TUI
+# MonaRepo TUI (v0.4.0)
 
 [![CI](https://github.com/Monynha-Softwares/MonaRepoTui/actions/workflows/lint_test.yml/badge.svg)](https://github.com/Monynha-Softwares/MonaRepoTui/actions/workflows/lint_test.yml)
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](LICENSE)
@@ -14,10 +14,14 @@ sudo ./bin/mona
 ```
 
 ## Features
+- Installer Wizard for GitHub/Docker
+  - interactive `.env` helper
+  - `docker compose` pull/up/ps/logs
+  - README viewer (`less` fallback, `MONA_USE_TUI_READER=1`)
 - Bash modules & recipes
-- Interactive TUI
+- Interactive TUI (bashsimplecurses)
 - Dry-run mode
-- CI ready (shfmt, shellcheck, bats)
+- CI ready (shfmt, shellcheck, bats, editorconfig)
 
 ## Install
 
@@ -29,6 +33,17 @@ cd MonaRepoTui
 make install-dev
 ```
 
+### TUI dependency
+
+The interactive menus use [bashsimplecurses](https://github.com/metal3d/bashsimplecurses).
+If `ui/bashsimplecurses/simple_curses.sh` is missing, `bin/mona` will try to download it at
+runtime (`curl` required). To vendor it instead:
+
+```bash
+git submodule add https://github.com/metal3d/bashsimplecurses ui/bashsimplecurses
+git submodule update --init --recursive
+```
+
 ## Quickstart
 
 Run the TUI (root recommended):
@@ -43,6 +58,25 @@ sudo ./bin/mona
 ./bin/mona --help
 ```
 
+## Installer Wizard
+
+`./bin/mona` ships an installer that can bootstrap projects from GitHub or Docker images.
+It detects common actions and runs them one by one, logging everything to
+`~/.mona/logs` (override with `$MONA_LOG_DIR`).
+
+Examples:
+
+```bash
+# GitHub clone with PAT and README TUI viewer
+GITHUB_TOKEN=ghp_xxxx MONA_USE_TUI_READER=1 ./bin/mona
+
+# Preview commands without executing
+MONA_DRY_RUN=true ./bin/mona
+```
+
+Detected actions include copying `.env.example` to `.env` with an interactive editor,
+`docker compose pull/up/ps/logs`, `npm|yarn|pnpm install/build/dev/start`, and more.
+
 ## Development
 
 Format and lint:
diff --git a/bin/mona b/bin/mona
index 31e8b8d..c9ea8b1 100755
--- a/bin/mona
+++ b/bin/mona
@@ -217,7 +217,7 @@ flow_config_hosts() {
   apply "hostnamectl set-hostname '$new_host'"
   # /etc/hosts minimal
   if [[ -f /etc/hosts ]]; then
-    apply "cp /etc/hosts /etc/hosts.bak.mona.$(date +%s)"
+    backup_file /etc/hosts
     if ! $MONA_DRY_RUN; then
       awk -v h="$new_host" '!( ($2==h) || ($2 ~ h"\\.") )' /etc/hosts >/etc/hosts.mona || true
       mv /etc/hosts.mona /etc/hosts || true
@@ -280,7 +280,9 @@ YAML
       echo "-----------------------------------------"
       read -r -p "Aplicar? [y/N]: " ok || true
       if [[ "${ok^^}" == Y* ]]; then
-        apply "cp /etc/netplan/99-mona.yaml /etc/netplan/99-mona.yaml.bak 2>/dev/null || true"
+        if [[ -f /etc/netplan/99-mona.yaml ]]; then
+          backup_file /etc/netplan/99-mona.yaml
+        fi
         if ! $MONA_DRY_RUN; then printf "%s\n" "$netplan_yaml" >/etc/netplan/99-mona.yaml; fi
         apply "netplan apply"
         log "Netplan aplicado."
diff --git a/lib/common.sh b/lib/common.sh
index f64ac53..5d233d5 100644
--- a/lib/common.sh
+++ b/lib/common.sh
@@ -7,15 +7,33 @@ IFS=$'\n\t'
 . "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/log.sh"
 
 needs_root() {
-  [[ $EUID -eq 0 ]] || { log_error "Execute como root (sudo)."; exit 1; }
+  [[ $EUID -eq 0 ]] || {
+    log_error "Execute como root (sudo)."
+    exit 1
+  }
 }
 
 pm_detect() {
-  if command -v apt-get >/dev/null 2>&1; then echo apt; return; fi
-  if command -v dnf >/dev/null 2>&1; then echo dnf; return; fi
-  if command -v yum >/dev/null 2>&1; then echo yum; return; fi
-  if command -v pacman >/dev/null 2>&1; then echo pacman; return; fi
-  if command -v zypper >/dev/null 2>&1; then echo zypper; return; fi
+  if command -v apt-get >/dev/null 2>&1; then
+    echo apt
+    return
+  fi
+  if command -v dnf >/dev/null 2>&1; then
+    echo dnf
+    return
+  fi
+  if command -v yum >/dev/null 2>&1; then
+    echo yum
+    return
+  fi
+  if command -v pacman >/dev/null 2>&1; then
+    echo pacman
+    return
+  fi
+  if command -v zypper >/dev/null 2>&1; then
+    echo zypper
+    return
+  fi
   echo unknown
 }
 
@@ -25,12 +43,15 @@ pkg_install() {
   log_info "Instalando pacotes via $pm: ${pkgs[*]}"
   [[ "${MONA_DRY_RUN:-false}" == "true" ]] && return 0
   case "$pm" in
-    apt)    apt-get update -y && DEBIAN_FRONTEND=noninteractive apt-get install -y "${pkgs[@]}" ;;
-    dnf)    dnf install -y "${pkgs[@]}" ;;
-    yum)    yum install -y "${pkgs[@]}" ;;
-    pacman) pacman -Sy --noconfirm "${pkgs[@]}" ;;
-    zypper) zypper --non-interactive install --no-recommends "${pkgs[@]}" ;;
-    *)      log_error "Gerenciador de pacotes não suportado"; return 1 ;;
+  apt) apt-get update -y && DEBIAN_FRONTEND=noninteractive apt-get install -y "${pkgs[@]}" ;;
+  dnf) dnf install -y "${pkgs[@]}" ;;
+  yum) yum install -y "${pkgs[@]}" ;;
+  pacman) pacman -Sy --noconfirm "${pkgs[@]}" ;;
+  zypper) zypper --non-interactive install --no-recommends "${pkgs[@]}" ;;
+  *)
+    log_error "Gerenciador de pacotes não suportado"
+    return 1
+    ;;
   esac
 }
 
@@ -42,4 +63,10 @@ apply() {
   fi
 }
 
+backup_file() {
+  local src="$1" dst="${1}.bak.mona.$(date +%s)"
+  log "[mona] backup: $src -> $dst"
+  apply "cp '$src' '$dst'"
+}
+
 pause_any() { read -r -p $'Pressione Enter para voltar ao menu…\n' _ || true; }
diff --git a/tests/backup.bats b/tests/backup.bats
new file mode 100644
index 0000000..003896a
--- /dev/null
+++ b/tests/backup.bats
@@ -0,0 +1,15 @@
+#!/usr/bin/env bats
+
+setup() {
+  cd "$BATS_TEST_DIRNAME/.."
+}
+
+@test "backup_file creates timestamped backup" {
+  tmp=$(mktemp)
+  echo foo >"$tmp"
+  run bash -lc "MONA_DIR=$(pwd); . lib/common.sh; backup_file '$tmp'"
+  [ "$status" -eq 0 ]
+  [[ "$output" == *"[mona] backup:"* ]]
+  backup=$(ls "$tmp.bak.mona."*)
+  [ -f "$backup" ]
+}
diff --git a/tests/cli.bats b/tests/cli.bats
index 565aa9e..a6b7c2d 100644
--- a/tests/cli.bats
+++ b/tests/cli.bats
@@ -15,3 +15,8 @@ setup() {
   [ "$status" -eq 0 ]
   [[ "$output" == *"Usage:"* ]]
 }
+
+@test "bin/mona --dry-run exits 0" {
+  run env MONA_NONINTERACTIVE=1 ./bin/mona --dry-run <<<""
+  [ "$status" -eq 0 ]
+}