From 43c8dbeb5dbbdcd5b79223125aa8aae67ed61827 Mon Sep 17 00:00:00 2001
From: cerebrux <914656+cerebrux@users.noreply.github.com>
Date: Wed, 4 Jun 2025 19:37:40 +0300
Subject: [PATCH 1/9] remove apt-key dependency #86

---
 assets/postinst | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/assets/postinst b/assets/postinst
index d38fcb9..b2330f1 100755
--- a/assets/postinst
+++ b/assets/postinst
@@ -11,6 +11,8 @@ KEYSERVER="hkp://keyserver.ubuntu.com"
 KEY="EBC8F9FD"
 REPO_URL="http://ppa.launchpad.net/utappia/stable/ubuntu"
 REPO_FILE="/etc/apt/sources.list.d/utappia.list"
+KEYRING_DIR="/etc/apt/keyrings"
+KEYRING_FILE="$KEYRING_DIR/utappia-archive-keyring.gpg"
 
 # Distribution detection
 if [ -f /etc/os-release ]; then
@@ -31,7 +33,14 @@ if ls /etc/apt/sources.list.d/utappia* 1> /dev/null 2>&1; then
     echo "Utappia Repository exists... skipping"
 else
     echo "Adding Utappia public key"
-    apt-key adv --keyserver "$KEYSERVER" --keyserver-options no-ipv6 --recv-keys "$KEY"
+    # Create keyrings directory if it doesn't exist
+    mkdir -p "$KEYRING_DIR"
+    # Create GPG directory
+    mkdir -p /root/.gnupg
+    chmod 700 /root/.gnupg
+    # Download and install GPG key directly from keyserver
+    gpg --no-default-keyring --keyring "$KEYRING_FILE" --keyserver "$KEYSERVER" --recv-keys "$KEY"
+    chmod 644 "$KEYRING_FILE"
     echo ""
     
     echo "Adding Utappia repository"
@@ -61,8 +70,8 @@ else
     else
         cat <<EOT > "$REPO_FILE"
 # Debian compatible Utappia Repository
-deb $REPO_URL $COMPATIBLE_DIST_NAME main
-deb-src $REPO_URL $COMPATIBLE_DIST_NAME main
+deb [signed-by=$KEYRING_FILE] $REPO_URL $COMPATIBLE_DIST_NAME main
+deb-src [signed-by=$KEYRING_FILE] $REPO_URL $COMPATIBLE_DIST_NAME main
 EOT
         echo ""
         echo "Refreshing package list..."

From 60404adf9ad7990240c9bbd016f3de347ecce23c Mon Sep 17 00:00:00 2001
From: cerebrux <914656+cerebrux@users.noreply.github.com>
Date: Thu, 5 Jun 2025 00:45:37 +0300
Subject: [PATCH 2/9] change to common google test Bug latency curl in internet
 check phase #113

---
 ucaresystem-core | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ucaresystem-core b/ucaresystem-core
index f2eece0..82f90fb 100755
--- a/ucaresystem-core
+++ b/ucaresystem-core
@@ -42,7 +42,7 @@ if [[ $EUID -ne 0 ]] ; then
 fi
 # Function to check internet connectivity
 function CHECK_INTERNET {
-    if curl -4 -s --head http://archive.ubuntu.com | head -n 1 | grep "200 OK" > /dev/null; then
+    if curl -4 -s --head https://www.google.com | head -n 1 | grep "200 OK" > /dev/null; then
         return 0  # Internet connection is available
     else
         return 1  # No internet connection

From 67c3efa4065abbf38533f126e6c5a53911812252 Mon Sep 17 00:00:00 2001
From: cerebrux <914656+cerebrux@users.noreply.github.com>
Date: Thu, 5 Jun 2025 01:24:37 +0300
Subject: [PATCH 3/9] update version and support

---
 README.md        | 20 +++++++++-----------
 ucaresystem-core | 16 +++++++---------
 2 files changed, 16 insertions(+), 20 deletions(-)

diff --git a/README.md b/README.md
index fbe5b3a..358bc53 100644
--- a/README.md
+++ b/README.md
@@ -11,26 +11,24 @@
 	Name   : uCareSystem
 	License: GPL3 (http://www.gnu.org/licenses/gpl.html)
 	Author : Salih Emin
-	Email  : salih-(a)-utappia.org
-	Date   : 24-12-2024 (first release 19-02-2009)
-	Version: 25.04.09
-	System : Ubuntu Linux and derivatives. With Deb, Snap or Flatpak. (Partial support for Debian and WSL2) 
+	Email  : salih-emin(a)ubuntu.com
+	Date   : 05-06-2025 (first release 19-02-2009)
+	Version: 25.06.05
+	System : Ubuntu Linux and derivatives. With Deb, Snap or Flatpak. (Partial support for WSL2) 
 	WebSite: http://utappia.org
 
-## Sponsors of the previous development cycle (v24.12)
+## Sponsors of the previous development cycle (v25.04)
 
-With version 24.06 of uCareSystem, I added a section to acknowledge the people who supported the development of the previous cycle. This addition was warmly received by the community, and I can't express enough gratitude to those who donated during the previous (v24.12) development cycle:
+With version 24.06 of uCareSystem, I added a section to acknowledge the people who supported the development of the previous cycle. This addition was warmly received by the community, and I can't express enough gratitude to those who donated during the previous development cycle:
 
 - P. Loughman (Thanks for your continued support)
 - D. Emge (Thanks for your continued support)
 - W. Schreinemachers (Thanks for your continued support)
 - W. Schwartz
-- O. Majila
-- N. Karanikolas
-- C. Alfaro
-- K. Leymann
-- M. Spinello
+- D. e Swarthout
 - D. Luchini
+- M. Stanley
+- N. Evangelista
 
 
 ## Description:
diff --git a/ucaresystem-core b/ucaresystem-core
index 82f90fb..e6a80d9 100755
--- a/ucaresystem-core
+++ b/ucaresystem-core
@@ -12,7 +12,7 @@ set -e
 # WebSite: http://utappia.org
 # Email  : salih-(at)-utappia.org
 # Date   : 11-12-2024 (first release 19-02-2009)
-# Version: 25.04.09
+# Version: 25.06.05
 # System : Ubuntu Linux and derivatives. With Deb, Snap or Flatpak. (Partial support for Debian and WSL2) 
 # Description:
 #This simple script will automatically refresh your package list, download and install
@@ -29,9 +29,9 @@ YELLOW="\e[33m"
 ENDCOLOR="\e[0m"
 DIST_CODENAME=$(lsb_release --codename | cut -f2)
 DATE=$(date +%F_%T)
-UCARE_VERSION="25.04.09"
-VER_CODENAME="P. Loughman"
-PREV_VER="24.12"
+UCARE_VERSION="25.06.05"
+VER_CODENAME="W. Schwartz"
+PREV_VER="25.04"
 USERNAME=$(logname 2>/dev/null || echo "$USER")
 DONATE="https://www.paypal.com/donate/?hosted_button_id=SATQ6Y9S3UCSG"
 # Check for root/sudo privileges
@@ -470,13 +470,11 @@ function GOODBYE {
 	echo " - P. Loughman"
 	echo " - D. Emge"
 	echo " - W. Schwartz"
-	echo " - O. Majila"
 	echo " - W. Schreinemachers"
-	echo " - N. Karanikolas"
-	echo " - C. Alfaro"
-	echo " - K. Leymann"
-	echo " - M. Spinello"
+	echo " - D. e Swarthout"
 	echo " - D. Luchini"
+	echo " - M. Stanley"
+	echo " - N. Evangelista"
 	echo ""
 	echo -e "${CYAN}$DONATE ${ENDCOLOR}"
 	echo ""

From b0b3050521e2477f12c2b944fb9585fbc8c35260 Mon Sep 17 00:00:00 2001
From: cerebrux <914656+cerebrux@users.noreply.github.com>
Date: Thu, 5 Jun 2025 23:06:59 +0300
Subject: [PATCH 4/9] fix Wrong kernel cleanup in v25.04.09 #112

---
 ucaresystem-core | 90 +++++++++++++-----------------------------------
 1 file changed, 23 insertions(+), 67 deletions(-)

diff --git a/ucaresystem-core b/ucaresystem-core
index e6a80d9..dde15a3 100755
--- a/ucaresystem-core
+++ b/ucaresystem-core
@@ -42,7 +42,7 @@ if [[ $EUID -ne 0 ]] ; then
 fi
 # Function to check internet connectivity
 function CHECK_INTERNET {
-    if curl -4 -s --head https://www.google.com | head -n 1 | grep "200 OK" > /dev/null; then
+    if curl -4 -s --head http://www.google.com | head -n 1 | grep "200 OK" > /dev/null; then
         return 0  # Internet connection is available
     else
         return 1  # No internet connection
@@ -107,7 +107,6 @@ function WELCOME_SCREEN {
 function CLEANUP_OLD_KERNELS {
     local keep_count=${1:-2}  # Default to keeping 2 kernels if not specified
     local current_kernel
-    local kernel_list
     local purge_list=""
     local min_kernels=2  # Minimum required: current + one backup
     
@@ -131,54 +130,35 @@ function CLEANUP_OLD_KERNELS {
     current_kernel=$(uname -r)
     echo -e "${YELLOW}Current kernel: ${current_kernel}${ENDCOLOR}"
     
-    # Find all installed kernels, sort by version
-    kernel_list=$(dpkg -l 'linux-image-*' | \
-        awk '/^ii/{ print $2 }' | \
-        sort -V)
+    # Build list of kernel packages to purge
+    # This uses the actual kernel files in /boot to determine which kernels to keep
+    purge_list=$(ls -tr /boot/vmlinuz-* | \
+        head -n -${keep_count} | \
+        grep -v "$current_kernel$" | \
+        cut -d- -f2- | \
+        awk '{print "linux-image-" $0 " linux-headers-" $0}')
     
-    # Count total installed kernels
-    total_kernels=$(echo "$kernel_list" | wc -l)
+    # Verify each package exists before adding to purge list
+    final_purge_list=""
+    for pkg in $purge_list; do
+        if dpkg-query -s "$pkg" >/dev/null 2>&1; then
+            final_purge_list="$final_purge_list $pkg"
+        fi
+    done
     
-    if [ "$total_kernels" -le "$keep_count" ]; then
-        echo -e "${YELLOW}No kernels eligible for removal (found $total_kernels, keeping $keep_count)${ENDCOLOR}"
+    if [ -z "$final_purge_list" ]; then
+        echo -e "${YELLOW}No kernels are eligible for removal${ENDCOLOR}"
         return 0
     fi
     
-    # Calculate how many kernels to remove
-    remove_count=$((total_kernels - keep_count))
-    
-    echo -e "${YELLOW}Found $total_kernels kernels, keeping $keep_count, will remove $remove_count${ENDCOLOR}"
+    echo -e "${YELLOW}The following kernels will be removed:${ENDCOLOR}"
+    echo "$final_purge_list"
+    echo
     
-    # Build list of kernels to remove (oldest first)
-    # Explicitly exclude the running kernel
-    purge_list=$(echo "$kernel_list" | \
-        grep -v "$(uname -r)$" | \
-        head -n "$remove_count")
+    # Remove the packages
+    sudo apt autoremove -y --purge $final_purge_list
     
-    if [ -n "$purge_list" ]; then
-        echo -e "${YELLOW}The following kernels will be removed:${ENDCOLOR}"
-        echo "$purge_list"
-        echo
-        
-        # Double check that running kernel is not in purge list
-        if echo "$purge_list" | grep -q "$(uname -r)"; then
-            echo -e "${YELLOW}ERROR: Safety check failed - current kernel was in remove list${ENDCOLOR}"
-            echo -e "${YELLOW}Aborting kernel cleanup to prevent system damage${ENDCOLOR}"
-            return 1
-        fi
-        
-        # For each kernel image, also remove its headers
-        for kernel in $purge_list; do
-            header_pkg=${kernel/image/headers}
-            if dpkg -l "$header_pkg" >/dev/null 2>&1; then
-                sudo apt remove -y --purge "$kernel" "$header_pkg"
-            else
-                sudo apt remove -y --purge "$kernel"
-            fi
-        done
-        
-        echo -e "${YELLOW} Kernel cleanup completed${ENDCOLOR}"Develop
-    fi
+    echo -e "${YELLOW}Kernel cleanup completed${ENDCOLOR}"
 }
 
 function MAINTENANCE {
@@ -440,14 +420,6 @@ function SHOW_HELP {
 		 -r --reboot       Reboot the system, after completing all the tasks, 
 
 		 -s --shutdown     Shutdown the system, after completing all the tasks, 
-
-		 -k --keep-kernels <number>
-			   Specify the number of kernels to keep during cleanup.
-			   Minimum value is 2 to ensure system stability
-			   (current kernel + backup). Default is 2 if not
-			   specified. The script will never remove the currently
-			   running kernel.
-			   Example: --keep-kernels 3 (keeps current + 2 older versions)
 EOF
 }
 
@@ -537,22 +509,6 @@ while [ "$1" != "" ]; do
 	-r | --reboot )		 WELCOME_SCREEN && MAINTENANCE && GOODBYE && RE_BOOT
 							 exit
 							    ;;
-        -k | --keep-kernels)
-            shift
-            if [ -n "$1" ] && [[ "$1" =~ ^[0-9]+$ ]]; then
-                min_kernels=2
-                if [ "$1" -lt "$min_kernels" ]; then
-                    echo -e "${YELLOW}Error: Cannot specify fewer than $min_kernels kernels${ENDCOLOR}"
-                    echo -e "${YELLOW}This ensures you always have a backup kernel${ENDCOLOR}"
-                    exit 1
-                fi
-                WELCOME_SCREEN && CLEANUP_OLD_KERNELS "$1" && GOODBYE
-            else
-                echo -e "${YELLOW}Error: --keep-kernels requires a positive number (minimum: 2)${ENDCOLOR}"
-                exit 1
-            fi
-            exit
-            ;;
         * )                  SHOW_HELP
                              exit 1
     esac

From 19923c26a02941f59fd5e232b6585af233818744 Mon Sep 17 00:00:00 2001
From: Your Name <914656+cerebrux@users.noreply.github.com>
Date: Fri, 6 Jun 2025 00:11:41 +0300
Subject: [PATCH 5/9] fix for Snap is not supported yet #116 and kernel cleanup
 #115 and Systemd reloading error #114

---
 ucaresystem-core | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/ucaresystem-core b/ucaresystem-core
index dde15a3..1267fac 100755
--- a/ucaresystem-core
+++ b/ucaresystem-core
@@ -178,7 +178,7 @@ function MAINTENANCE {
 
 	# The following is for when the unit file, source configuration file or drop-ins 
 	# of apt-news.service changed on disk and systemd wasn't aware of it.
-	if command -v systemctl &> /dev/null; then
+	if command -v systemctl &> /dev/null  && [ ! -f /proc/sys/fs/binfmt_misc/WSLInterop ]; then
 		echo -e "${YELLOW}Reloading systemd manager configuration ${ENDCOLOR}"
 		sudo systemctl daemon-reload
 		sleep 1
@@ -215,8 +215,8 @@ function MAINTENANCE {
 	echo -e "${GREEN}▸ Checking for Snap and Flatpak updates ${ENDCOLOR}"
 	echo
 	# Check if Snap is installed
-	if command -v snap &> /dev/null; then
-	# Stop all running Snap applications
+	if command -v snap &> /dev/null && [ ! -f /proc/sys/fs/binfmt_misc/WSLInterop ]; then
+		# Stop all running Snap applications
 		echo -e "${YELLOW}Stopping all running Snap applications... ${ENDCOLOR}"
 		stopped_snaps=()
 		while IFS= read -r snapname; do
@@ -285,7 +285,11 @@ function MAINTENANCE {
 
 	# Call kernel cleanup with default value
 	echo -e "${GREEN}▸ Checking for old kernels...${ENDCOLOR}"
-	CLEANUP_OLD_KERNELS 2
+	if [ ! -f /proc/sys/fs/binfmt_misc/WSLInterop ]; then
+		CLEANUP_OLD_KERNELS 2
+	else
+		echo -e "${YELLOW}Skipping kernel cleanup in WSL environment${ENDCOLOR}"
+	fi
 
 	## Removes unused config files of uninstalled packages
 	dpkg --get-selections | grep deinstall | cut -f1 | xargs sudo apt autoremove -y --purge;

From 705fc7f982ef9511b54b2cfaf3156dea11be3f32 Mon Sep 17 00:00:00 2001
From: cerebrux <914656+cerebrux@users.noreply.github.com>
Date: Fri, 6 Jun 2025 09:36:37 +0300
Subject: [PATCH 6/9] update email

---
 ucaresystem-core | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ucaresystem-core b/ucaresystem-core
index 1267fac..7328c51 100755
--- a/ucaresystem-core
+++ b/ucaresystem-core
@@ -10,7 +10,7 @@ set -e
 # License: GPL3 (http://www.gnu.org/licenses/gpl.html)
 # Author : Salih Emin
 # WebSite: http://utappia.org
-# Email  : salih-(at)-utappia.org
+# Email  : salih-emin(at)ubuntu.com
 # Date   : 11-12-2024 (first release 19-02-2009)
 # Version: 25.06.05
 # System : Ubuntu Linux and derivatives. With Deb, Snap or Flatpak. (Partial support for Debian and WSL2) 

From a26593b69cf4d66c252cc38348e5425bb2007e94 Mon Sep 17 00:00:00 2001
From: cerebrux <914656+cerebrux@users.noreply.github.com>
Date: Fri, 6 Jun 2025 10:19:20 +0300
Subject: [PATCH 7/9] fixing shellcheck warnings

---
 ucaresystem-core | 29 +++++++++++++++++------------
 1 file changed, 17 insertions(+), 12 deletions(-)

diff --git a/ucaresystem-core b/ucaresystem-core
index 7328c51..9140bc8 100755
--- a/ucaresystem-core
+++ b/ucaresystem-core
@@ -21,7 +21,7 @@ set -e
 #
 ## Script starts here
 
-#Variables
+# Variables
 GREEN="\e[32m"
 CYAN="\e[36m"
 MAGENTA="\e[35m"
@@ -40,6 +40,7 @@ if [[ $EUID -ne 0 ]] ; then
     exec sudo "$0" "$@" 
     exit 1
 fi
+
 # Function to check internet connectivity
 function CHECK_INTERNET {
     if curl -4 -s --head http://www.google.com | head -n 1 | grep "200 OK" > /dev/null; then
@@ -48,6 +49,7 @@ function CHECK_INTERNET {
         return 1  # No internet connection
     fi
 }
+
 # Check internet connectivity
 if ! CHECK_INTERNET; then
    echo -e "${YELLOW}No internet connection detected... ${ENDCOLOR}"
@@ -62,7 +64,7 @@ fi
 
 # Simple countdown function
 function COUNTDOWN {
-    secs=$1
+    local secs=$1
     while [ "$secs" -ge 0 ]; do
         if [ "$secs" -eq 0 ]; then
             # Clear the line completely and show just the "now!" message
@@ -108,6 +110,7 @@ function CLEANUP_OLD_KERNELS {
     local keep_count=${1:-2}  # Default to keeping 2 kernels if not specified
     local current_kernel
     local purge_list=""
+    local final_purge_list=""
     local min_kernels=2  # Minimum required: current + one backup
     
     echo -e "${GREEN}▸ Starting kernel cleanup...${ENDCOLOR}"
@@ -132,9 +135,11 @@ function CLEANUP_OLD_KERNELS {
     
     # Build list of kernel packages to purge
     # This uses the actual kernel files in /boot to determine which kernels to keep
-    purge_list=$(ls -tr /boot/vmlinuz-* | \
-        head -n -${keep_count} | \
-        grep -v "$current_kernel$" | \
+    purge_list=$(find /boot -maxdepth 1 -name "vmlinuz-*" -printf "%T@ %p\n" | \
+        sort -n | \
+        cut -d' ' -f2- | \
+        head -n -"${keep_count}" | \
+        grep -v "${current_kernel}$" | \
         cut -d- -f2- | \
         awk '{print "linux-image-" $0 " linux-headers-" $0}')
     
@@ -142,21 +147,21 @@ function CLEANUP_OLD_KERNELS {
     final_purge_list=""
     for pkg in $purge_list; do
         if dpkg-query -s "$pkg" >/dev/null 2>&1; then
-            final_purge_list="$final_purge_list $pkg"
+            final_purge_list="${final_purge_list} ${pkg}"
         fi
     done
     
-    if [ -z "$final_purge_list" ]; then
+    if [ -z "${final_purge_list}" ]; then
         echo -e "${YELLOW}No kernels are eligible for removal${ENDCOLOR}"
         return 0
     fi
     
     echo -e "${YELLOW}The following kernels will be removed:${ENDCOLOR}"
-    echo "$final_purge_list"
+    echo "${final_purge_list}"
     echo
     
     # Remove the packages
-    sudo apt autoremove -y --purge $final_purge_list
+    sudo apt autoremove -y --purge "${final_purge_list}"
     
     echo -e "${YELLOW}Kernel cleanup completed${ENDCOLOR}"
 }
@@ -172,13 +177,13 @@ function MAINTENANCE {
 	echo
 	df_output=$(df -h / | awk 'NR==2 {print "Percentage of disk space used:", $5, "\nFree space available:", $4}')
 	echo ""
-	echo -e "${YELLOW}$df_output ${ENDCOLOR}"
+	echo -e "${YELLOW}${df_output}${ENDCOLOR}"
 	echo
 	sleep 1
 
 	# The following is for when the unit file, source configuration file or drop-ins 
 	# of apt-news.service changed on disk and systemd wasn't aware of it.
-	if command -v systemctl &> /dev/null  && [ ! -f /proc/sys/fs/binfmt_misc/WSLInterop ]; then
+	if command -v systemctl &> /dev/null && [ ! -f /proc/sys/fs/binfmt_misc/WSLInterop ]; then
 		echo -e "${YELLOW}Reloading systemd manager configuration ${ENDCOLOR}"
 		sudo systemctl daemon-reload
 		sleep 1
@@ -339,7 +344,7 @@ function MAINTENANCE {
 	echo -e "${GREEN}▸ Checking Disk usage after System Maintenance ${ENDCOLOR}"
 	echo
 	df_output=$(df -h / | awk 'NR==2 {print "Percentage of disk space used:", $5, "\nFree space available:", $4}')
-	echo -e "${YELLOW}$df_output ${ENDCOLOR}"
+	echo -e "${YELLOW}${df_output}${ENDCOLOR}"
 	echo
 	sleep 1
 

From ff7a6b41f044127b08676bad8cca2ee3b951c8f2 Mon Sep 17 00:00:00 2001
From: cerebrux <914656+cerebrux@users.noreply.github.com>
Date: Fri, 6 Jun 2025 10:29:13 +0300
Subject: [PATCH 8/9] remove -k option

---
 README.md | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/README.md b/README.md
index 358bc53..9c9eb12 100644
--- a/README.md
+++ b/README.md
@@ -30,7 +30,6 @@ With version 24.06 of uCareSystem, I added a section to acknowledge the people w
 - M. Stanley
 - N. Evangelista
 
-
 ## Description:
 
 In summary, uCareSystem performs the following list of maintenance tasks automatically and without the need for user interference. :
@@ -74,11 +73,6 @@ If your Ubuntu (and official flavors) has reached the EOL support you can upgrad
 ```
 ucaresystem-core -eol
 ```
-You can specify if you need to keep more kernels and remove the rest
-```
-ucaresystem-core -k 3
-```
-
 For information about all the available options / flags, start ucaresystem-core with `-h` option :
 ```
 ucaresystem-core -h

From 7337c9a6700b4d871366f8dd96d9e2c7d351cf21 Mon Sep 17 00:00:00 2001
From: cerebrux <914656+cerebrux@users.noreply.github.com>
Date: Fri, 6 Jun 2025 10:38:21 +0300
Subject: [PATCH 9/9] add install uninstall instructions

---
 README.md | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)

diff --git a/README.md b/README.md
index 9c9eb12..6e8b744 100644
--- a/README.md
+++ b/README.md
@@ -8,6 +8,8 @@
  
 # uCareSystem
 
+	uCareSystem is an all-in-one system update and maintenance application for Ubuntu and its derivatives. It provides a simple way to keep your system up-to-date and clean.
+
 	Name   : uCareSystem
 	License: GPL3 (http://www.gnu.org/licenses/gpl.html)
 	Author : Salih Emin
@@ -49,6 +51,21 @@ In summary, uCareSystem performs the following list of maintenance tasks automat
 
 ![ucaresystem-color](https://github.com/user-attachments/assets/6f5171c2-5a64-465b-b794-920e225ce7f7)
 
+## Installation
+
+1. Download the latest .deb package from the [releases page](https://github.com/utappia/ucaresystem/releases)
+2. Install the package:
+   ```bash
+   sudo apt install ./ucaresystem-core_*.deb
+   ```
+The installer will:
+- Install the uCareSystem core package
+- Check if the Utappia repository exists in your system
+- If the repository is not found, it will automatically:
+  - Add the Utappia repository for future updates
+  - Add the repository signing key
+
+
 ## Usage
 
 uCareSystem creates a launcher icon in your Applications menu. Just search your applications menu for `ucare`. If you click the icon, it starts performing the default maintenance tasks. 
@@ -77,6 +94,27 @@ For information about all the available options / flags, start ucaresystem-core
 ```
 ucaresystem-core -h
 ```
+## Uninstallation
+
+To completely remove uCareSystem and its repository:
+
+1. Remove the package:
+   ```bash
+   sudo apt autoremove ucaresystem-core
+   ```
+
+2. (Optional) Remove the repository and its signing key:
+   ```bash
+   sudo rm /etc/apt/sources.list.d/utappia*.list
+   sudo rm /etc/apt/keyrings/utappia*.gpg
+   ```
+   If you keep the repository and its signing key you can reinstall ucaresystem-core without downloading the *.deb package but instead by `apt install ucaresystem-core`.
+
+3. Update package lists:
+   ```bash
+   sudo apt update
+   ```
+
 ## Code contribution
 
 If you have an idea and want to contribute code: