diff --git a/apps/aarch64-darwin/apply b/apps/aarch64-darwin/apply
index 1cad43d..bd80b87 100755
--- a/apps/aarch64-darwin/apply
+++ b/apps/aarch64-darwin/apply
@@ -1,28 +1,7 @@
 #!/usr/bin/env bash
 
 set -euo pipefail
-
-RED='\033[0;31m'
-GREEN='\033[0;32m'
-YELLOW='\033[1;33m'
-BLUE='\033[0;34m'
-NC='\033[0m'
-
-print_info() {
-    echo -e "${BLUE}📘${NC} $1"
-}
-
-print_success() {
-    echo -e "${GREEN}✅${NC} $1"
-}
-
-print_error() {
-    echo -e "${RED}❌${NC} $1"
-}
-
-print_warning() {
-    echo -e "${YELLOW}⚡${NC} $1"
-}
+source "$(dirname "$0")/../common.sh"
 
 HOSTNAME="${1:-$(scutil --get LocalHostName 2>/dev/null || hostname -s)}"
 
@@ -30,4 +9,4 @@ print_info "Applying configuration for $HOSTNAME"
 
 nix run nix-darwin -- switch --flake ".#$HOSTNAME" "${@:2}"
 
-print_success "Configuration applied successfully"
\ No newline at end of file
+print_success "Configuration applied successfully"
diff --git a/apps/aarch64-darwin/build b/apps/aarch64-darwin/build
index 24d0136..6db64db 100755
--- a/apps/aarch64-darwin/build
+++ b/apps/aarch64-darwin/build
@@ -1,28 +1,7 @@
 #!/usr/bin/env bash
 
 set -euo pipefail
-
-RED='\033[0;31m'
-GREEN='\033[0;32m'
-YELLOW='\033[1;33m'
-BLUE='\033[0;34m'
-NC='\033[0m'
-
-print_info() {
-    echo -e "${BLUE}📘${NC} $1"
-}
-
-print_success() {
-    echo -e "${GREEN}✅${NC} $1"
-}
-
-print_error() {
-    echo -e "${RED}❌${NC} $1"
-}
-
-print_warning() {
-    echo -e "${YELLOW}⚡${NC} $1"
-}
+source "$(dirname "$0")/../common.sh"
 
 HOSTNAME="${1:-$(scutil --get LocalHostName 2>/dev/null || hostname -s)}"
 
@@ -34,4 +13,4 @@ if [[ -L ./result ]]; then
     unlink ./result
 fi
 
-print_success "Build completed successfully"
\ No newline at end of file
+print_success "Build completed successfully"
diff --git a/apps/aarch64-darwin/build-switch b/apps/aarch64-darwin/build-switch
index a0e6787..016d494 100755
--- a/apps/aarch64-darwin/build-switch
+++ b/apps/aarch64-darwin/build-switch
@@ -1,28 +1,7 @@
 #!/usr/bin/env bash
 
 set -euo pipefail
-
-RED='\033[0;31m'
-GREEN='\033[0;32m'
-YELLOW='\033[1;33m'
-BLUE='\033[0;34m'
-NC='\033[0m'
-
-print_info() {
-    echo -e "${BLUE}📘${NC} $1"
-}
-
-print_success() {
-    echo -e "${GREEN}✅${NC} $1"
-}
-
-print_error() {
-    echo -e "${RED}❌${NC} $1"
-}
-
-print_warning() {
-    echo -e "${YELLOW}⚡${NC} $1"
-}
+source "$(dirname "$0")/../common.sh"
 
 HOSTNAME="${1:-$(scutil --get LocalHostName 2>/dev/null || hostname -s)}"
 
@@ -45,4 +24,4 @@ if [[ -L ./result ]]; then
     unlink ./result
 fi
 
-print_success "Build and switch completed successfully"
\ No newline at end of file
+print_success "Build and switch completed successfully"
diff --git a/apps/aarch64-darwin/rollback b/apps/aarch64-darwin/rollback
index 48f0dd7..f2b9050 100755
--- a/apps/aarch64-darwin/rollback
+++ b/apps/aarch64-darwin/rollback
@@ -1,28 +1,7 @@
 #!/usr/bin/env bash
 
 set -euo pipefail
-
-RED='\033[0;31m'
-GREEN='\033[0;32m'
-YELLOW='\033[1;33m'
-BLUE='\033[0;34m'
-NC='\033[0m'
-
-print_info() {
-    echo -e "${BLUE}📘${NC} $1"
-}
-
-print_success() {
-    echo -e "${GREEN}✅${NC} $1"
-}
-
-print_error() {
-    echo -e "${RED}❌${NC} $1"
-}
-
-print_warning() {
-    echo -e "${YELLOW}⚡${NC} $1"
-}
+source "$(dirname "$0")/../common.sh"
 
 print_info "Available generations:"
 darwin-rebuild --list-generations
@@ -38,4 +17,4 @@ fi
 print_warning "Rolling back to generation $GEN_NUM..."
 darwin-rebuild switch --switch-generation "$GEN_NUM"
 
-print_success "Rollback to generation $GEN_NUM complete"
\ No newline at end of file
+print_success "Rollback to generation $GEN_NUM complete"
diff --git a/apps/common.sh b/apps/common.sh
new file mode 100644
index 0000000..ea1248c
--- /dev/null
+++ b/apps/common.sh
@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+BLUE='\033[0;34m'
+NC='\033[0m'
+
+print_info() {
+    echo -e "${BLUE}[INFO]${NC} $1"
+}
+
+print_success() {
+    echo -e "${GREEN}[OK]${NC} $1"
+}
+
+print_error() {
+    echo -e "${RED}[ERROR]${NC} $1"
+}
+
+print_warning() {
+    echo -e "${YELLOW}[WARN]${NC} $1"
+}
diff --git a/apps/x86_64-linux/apply b/apps/x86_64-linux/apply
index 8661f29..48086bc 100755
--- a/apps/x86_64-linux/apply
+++ b/apps/x86_64-linux/apply
@@ -1,28 +1,7 @@
 #!/usr/bin/env bash
 
 set -euo pipefail
-
-RED='\033[0;31m'
-GREEN='\033[0;32m'
-YELLOW='\033[1;33m'
-BLUE='\033[0;34m'
-NC='\033[0m'
-
-print_info() {
-    echo -e "${BLUE}📘${NC} $1"
-}
-
-print_success() {
-    echo -e "${GREEN}✅${NC} $1"
-}
-
-print_error() {
-    echo -e "${RED}❌${NC} $1"
-}
-
-print_warning() {
-    echo -e "${YELLOW}⚡${NC} $1"
-}
+source "$(dirname "$0")/../common.sh"
 
 HOSTNAME="${1:-$(hostname)}"
 
@@ -34,4 +13,4 @@ else
     nixos-rebuild switch --flake ".#$HOSTNAME" "${@:2}"
 fi
 
-print_success "Configuration applied successfully"
\ No newline at end of file
+print_success "Configuration applied successfully"
diff --git a/apps/x86_64-linux/build b/apps/x86_64-linux/build
index 29a7091..9922130 100755
--- a/apps/x86_64-linux/build
+++ b/apps/x86_64-linux/build
@@ -1,28 +1,7 @@
 #!/usr/bin/env bash
 
 set -euo pipefail
-
-RED='\033[0;31m'
-GREEN='\033[0;32m'
-YELLOW='\033[1;33m'
-BLUE='\033[0;34m'
-NC='\033[0m'
-
-print_info() {
-    echo -e "${BLUE}📘${NC} $1"
-}
-
-print_success() {
-    echo -e "${GREEN}✅${NC} $1"
-}
-
-print_error() {
-    echo -e "${RED}❌${NC} $1"
-}
-
-print_warning() {
-    echo -e "${YELLOW}⚡${NC} $1"
-}
+source "$(dirname "$0")/../common.sh"
 
 HOSTNAME="${1:-$(hostname)}"
 
@@ -34,4 +13,4 @@ if [[ -L ./result ]]; then
     unlink ./result
 fi
 
-print_success "Build completed successfully"
\ No newline at end of file
+print_success "Build completed successfully"
diff --git a/apps/x86_64-linux/build-switch b/apps/x86_64-linux/build-switch
index d954277..a1b4068 100755
--- a/apps/x86_64-linux/build-switch
+++ b/apps/x86_64-linux/build-switch
@@ -1,24 +1,7 @@
 #!/usr/bin/env bash
 
 set -euo pipefail
-
-RED='\033[0;31m'
-GREEN='\033[0;32m'
-YELLOW='\033[1;33m'
-BLUE='\033[0;34m'
-NC='\033[0m'
-
-print_info() {
-    echo -e "${BLUE}📘${NC} $1"
-}
-
-print_success() {
-    echo -e "${GREEN}✅${NC} $1"
-}
-
-print_error() {
-    echo -e "${RED}❌${NC} $1"
-}
+source "$(dirname "$0")/../common.sh"
 
 HOSTNAME="${1:-$(hostname)}"
 
diff --git a/apps/x86_64-linux/rollback b/apps/x86_64-linux/rollback
index ea55ef1..493263b 100644
--- a/apps/x86_64-linux/rollback
+++ b/apps/x86_64-linux/rollback
@@ -1,28 +1,7 @@
 #!/usr/bin/env bash
 
 set -euo pipefail
-
-RED='\033[0;31m'
-GREEN='\033[0;32m'
-YELLOW='\033[1;33m'
-BLUE='\033[0;34m'
-NC='\033[0m'
-
-print_info() {
-    echo -e "${BLUE}📘${NC} $1"
-}
-
-print_success() {
-    echo -e "${GREEN}✅${NC} $1"
-}
-
-print_error() {
-    echo -e "${RED}❌${NC} $1"
-}
-
-print_warning() {
-    echo -e "${YELLOW}⚡${NC} $1"
-}
+source "$(dirname "$0")/../common.sh"
 
 print_info "Available generations:"
 if [[ "$EUID" -ne 0 ]]; then
@@ -48,4 +27,4 @@ else
     /nix/var/nix/profiles/system/bin/switch-to-configuration switch
 fi
 
-print_success "Rollback to generation $GEN_NUM complete"
\ No newline at end of file
+print_success "Rollback to generation $GEN_NUM complete"