diff --git a/clone/clone b/clone/clone
index 28becec..d68d8c5 100755
--- a/clone/clone
+++ b/clone/clone
@@ -132,45 +132,28 @@ step4(){
 # [5] Updating users
 #========================================================#
 step5(){
-	echo "\n>>> [5] Updating users";
+	echo "\n>>> [5] Updating users' structure";
 
+	# (1) emulate `useradd sats` #
+	echo "    (.) emulate \`useradd sats\`";
+	echo "        - /etc/shadow";
+	cat ./utility/shadow_append | sudo tee -a /mnt/etc/shadow  > /dev/null;
+	cat ./utility/shadow_append | sudo tee -a /mnt/etc/shadow- > /dev/null;
+	echo "        - /etc/passwd";
+	cat ./utility/passwd_append | sudo tee -a /mnt/etc/passwd  > /dev/null;
+	cat ./utility/passwd_append | sudo tee -a /mnt/etc/passwd- > /dev/null;
 
-	# (1) Removing pi entry #
-	echo "    (.) Remove pi user entry"
-	echo "     >  /etc/shadow";
-	sudo cat /mnt/etc/shadow | grep -vE "^pi:" | tee ./tmp/shadow > /dev/null;
+	# (2) Emulate `groupadd` then `usermod` #
+	echo "    (.) emulate \`groupadd sats\`";
+	echo "        - /etc/group";
+	echo "    (.) emulate \`groupadd ssh-key\`";
+	echo "        - /etc/group";
+	echo "    (.) emulate \`usermod -a -G ssh-key,sats sats\`";
+	echo "        - /etc/group";
+	cat ./utility/group_append | sudo tee -a /mnt/etc/group > /dev/null;
+	cat ./utility/group_append | sudo tee -a /mnt/etc/group- > /dev/null;
 
-	# (2) Adding 'sats' user and new pi entry #
-	echo "    (.) Adding 'sats' user and updated 'pi'";
-	cat ./utility/shadow_append | tee -a ./tmp/shadow       > /dev/null;
-
-	# (3) Setting sats random password #
-	echo "    (.) Set sats random password"
-	RANDOM_PASS=$(tr -dc A-Za-z0-9_ < /dev/urandom | head -c 150);
-	RANDOM_SHADOW="$(python3 -c "import crypt; print(crypt.crypt(\"${RANDOM_PASS}\", crypt.mksalt(crypt.METHOD_SHA512)))")";
-	RANDOM_SHADOW="$(echo $RANDOM_SHADOW | sed 's/\//\\\//g')"
-	cat ./tmp/shadow | sed "s/sats-passowrd/$RANDOM_SHADOW/" | tee ./tmp/shadow > /dev/null;
-	
-
-
-	# (4) Update real files #
-	echo "    (.) Update real files";
-	echo "     >  /etc/shadow";
-	cat ./tmp/shadow | sudo tee /mnt/etc/shadow | sudo tee /mnt/etc/shadow- > /dev/null;
-	rm  ./tmp/shadow;
-
-	echo "     >  /etc/passwd";
-	cat ./utility/passwd_append | sudo tee -a /mnt/etc/passwd > /dev/null;
-	sudo cat /mnt/etc/passwd    | sudo tee /mnt/etc/passwd-   > /dev/null;
-
-
-	echo "    (.) Copying pi's .bashrc to sats";
-	sudo mkdir -p /mnt/home/sats;
-	sudo cp /mnt/home/pi/.bashrc /mnt/home/sats/.bashrc;
-	sudo chown 666:666 /mnt/home/sats/.bashrc;
-	sudo chmod 544 /mnt/home/sats/.bashrc;
-
-	echo "<<< done";
+	echo "<<< done":
 
 	step6;
 }
@@ -180,29 +163,11 @@ step5(){
 
 
 
-# [6] Updating groups
+
+# [6] Manage SSH keys #
 #========================================================#
 step6(){
-	echo "\n>>> [6] Updating groups (ssh-key, sats)";
-
-	cat ./utility/group_append | sudo tee -a /mnt/etc/group > /dev/null;
-	cat ./utility/group_append | sudo tee -a /mnt/etc/group- > /dev/null;
-
-	echo "<<< done":
-
-	step7;
-}
-
-
-
-
-
-
-
-# [7] Manage SSH keys #
-#========================================================#
-step7(){
-	echo "\n>>> [7] Manage ssh keys";
+	echo "\n>>> [6] Manage ssh keys";
 
 	# (1) Create ssh key pair #
 	echo "    (.) Create ssh key [ecdsa:521]";
@@ -238,12 +203,7 @@ step7(){
 	echo "    (.) Restrict access to pubkey";
 	cat ./utility/sshd_config_append | sudo tee -a /mnt/etc/ssh/sshd_config > /dev/null;
 
-
-	# (8) Set up automatic ssh server at start up #
-	echo "    (.) Emulate \`systemctl enable ssh.service\`";
-	sudo ln -fs /lib/systemd/system/ssh.service /mnt/etc/systemd/system/sshd.service;
-
-	# (9) Define config alias with ssh-key #
+	# (8) Define config alias with ssh-key #
 	echo "    (.) Define alias config";
 	echo "Host\tsmmp-server\n\tHostname\t$SERVER_HOSTNAME\n\tUser\t$SERVER_USERNAME\n\tIdentityFile\t~/.ssh/id_ecdsa\n\tStrictHostKeyChecking\tno" | sudo tee /mnt/home/sats/.ssh/config > /dev/null;
 	sudo chown 666:666 /mnt/home/sats/.ssh/config;
@@ -251,6 +211,47 @@ step7(){
 	
 
 
+	echo "<<< done";
+
+	step7;
+}
+
+
+
+
+
+
+
+# [7] Set up systemd services
+#========================================================#
+step7(){
+	echo "\n>>> [7] Set up systemd background";
+
+
+	# (1) Create link in order to be handled #
+	echo "    (.) Emulate \`systemctl set-default multi-user.target\`";
+	sudo ln -fs /lib/systemd/system/multi-user.target /mnt/etc/systemd/system/default.target;
+
+	#echo "    (.) Set autologin for tty1.service";
+	#sudo mkdir -pv /mnt/etc/systemd/system/getty@tty1.service.d;
+	#sudo touch /mnt/etc/systemd/system/getty@tty1.service.d/autologin.conf; 
+	#cat ./utility/autologin_overload.conf | sudo tee /mnt/etc/systemd/system/getty@tty1.service.d/autologin.conf > /dev/null;
+
+	# (2) Install sats-boot-process service #
+	echo "    (.) Create sats-boot-process service";
+	echo "        - /lib/systemd/system";
+	sudo cp ./utility/sats-boot-process.service /mnt/lib/systemd/system/sats-boot-process.service;
+
+	echo "    (.) Create sats-boot-process script";
+	sudo cp ./utility/sats-boot-process /mnt/home/pi/sats-boot-process;
+	sudo chown 1000:1000 /mnt/home/pi/sats-boot-process;
+	sudo chmod 770 /mnt/home/pi/sats-boot-process;
+
+	echo "    (.) Emulate \`systemctl enable sats-boot-process\`";
+	sudo ln -fs /lib/systemd/system/multi-user.target /mnt/etc/systemd/system/sats-boot-process.service;
+	
+
+
 	echo "<<< done";
 
 	step8;
@@ -262,22 +263,12 @@ step7(){
 
 
 
-# [8] Set up sats automatic login
+# [8] Manage Network config
 #========================================================#
 step8(){
-	echo "\n>>> [8] Set up automatic login";
-
-
-	# (1) Create link in order to be handled #
-	echo "    (.) Emulate \`systemctl set-default multi-user.target\`";
-	sudo ln -fs /lib/systemd/system/multi-user.target /mnt/etc/systemd/system/default.target;
-
-	# (2) Link autologin to tty service #
-	echo "    (.) Link autologin script to tty's default";
-	#sudo mkdir -pv /mnt/etc/systemd/system/getty@tty1.service.d;
-	#sudo touch /mnt/etc/systemd/system/getty@tty1.service.d/autologin.conf; 
-	#cat ./utility/autologin_overload.conf | sudo tee /mnt/etc/systemd/system/getty@tty1.service.d/autologin.conf > /dev/null;
+	echo "\n>>> [8] Set up WiFi configuration";
 
+	echo "network={\n\tssid=\"$WIFI_SSID\"\n\tpsk=\"$WIFI_PASS\"\n}" | sudo tee -a /mnt/etc/wpa_supplicant/wpa_supplicant.conf > /dev/null;
 
 	echo "<<< done";
 
@@ -289,29 +280,11 @@ step8(){
 
 
 
-
-# [9] Manage Network config
+# [9] Set up SATS daemon
 #========================================================#
 step9(){
-	echo "\n>>> [9] Set up WiFi configuration";
 
-	echo "network={\n\tssid=\"$WIFI_SSID\"\n\tpsk=\"$WIFI_PASS\"\n}" | sudo tee -a /mnt/etc/wpa_supplicant/wpa_supplicant.conf > /dev/null;
-
-	echo "<<< done";
-
-	step10;
-}
-
-
-
-
-
-
-# [10] Set up SATS daemon
-#========================================================#
-step10(){
-
-	echo "\n>>> [10] Set up SATS operating folder";
+	echo "\n>>> [9] Set up SATS operating folder";
 
 
 	# (1) Create operating folder #
@@ -323,16 +296,16 @@ step10(){
 
 	# (2) Set up SATS botting script #
 	echo "    (.) Set up SATS booting script";
-	cat ./utility/booting_script | sudo tee /mnt/home/sats/satsd/boot > /dev/null;
+	cat ./utility/sats-boot | sudo tee /mnt/home/sats/satsd/sats-boot > /dev/null;
 
 	# (3) Set up service unit #
-	echo "    (.) Set up service unit (sats.service)";
-	cat ./utility/service_unit | sudo tee /mnt/lib/systemd/system/sats.service > /dev/null;
+	echo "    (.) Set up service unit (sats-boot.service)";
+	cat ./utility/sats-boot.service | sudo tee /mnt/lib/systemd/system/sats-boot.service > /dev/null;
 
 	# (4) Enable startup service unit #
-	echo "    (.) Emulate \`systemctl enable sats.service\`";
+	echo "    (.) Emulate \`systemctl enable sats-boot.service\`";
 	sudo mkdir -p /mnt/etc/systemd/system/multi-user.target.wants;
-	sudo ln -fs /lib/systemd/system/sats.service /mnt/etc/systemd/system/multi-user.target.wants/sats.service;
+	sudo ln -fs /lib/systemd/system/sats-boot.service /mnt/etc/systemd/system/multi-user.target.wants/sats-boot.service;
 
 	# (5) Adjust permissions #
 	echo "    (.) Adjust permissions";
@@ -342,7 +315,7 @@ step10(){
 
 	echo "<<< done";
 
-	step11;
+	step10;
 
 }
 
@@ -352,9 +325,9 @@ step10(){
 
 
 
-# [11] BLablslkfjdlkdsjfks
+# [10] BLablslkfjdlkdsjfks
 #========================================================#
-step11(){
+step10(){
 
 	sudo umount /mnt;
 
@@ -373,12 +346,11 @@ echo "(1) Unmount mounted partitions";
 echo "(2) Format disk (gpt table)";
 echo "(3) Burn image into disk";
 echo "(4) Mount / partition";
-echo "(5) Update users";
-echo "(6) Update groups";
-echo "(7) Manage ssh keys";
-echo "(8) Set up automatic sats login";
-echo "(9) Set up WiFi config";
-echo "(10) Set up SATS daemon";
+echo "(5) Update users and groups";
+echo "(6) Manage ssh keys";
+echo "(7) Set up systemd background";
+echo "(8) Set up WiFi config";
+echo "(9) Set up SATS daemon";
 read -p "step: " step;
 
 case $step in
diff --git a/clone/utility/booting_script b/clone/utility/sats-boot
similarity index 100%
rename from clone/utility/booting_script
rename to clone/utility/sats-boot
diff --git a/clone/utility/sats-boot-process b/clone/utility/sats-boot-process
new file mode 100644
index 0000000..3e5d1a9
--- /dev/null
+++ b/clone/utility/sats-boot-process
@@ -0,0 +1,15 @@
+#!/bin/sh
+
+# [1] Set random passwords for 'sats'
+RANDOM_PASS=$(tr -cd A-Za-z0-9_ < /dev/urandom | head -c 256);
+echo "$RANDOM_PASS\n$RANDOM_PASS\n" | sudo passwd sats;
+
+# [2] Set random passwords for 'pi' itself
+RANDOM_PASS=$(tr -cd A-Za-z0-9_ < /dev/urandom | head -c 256);
+echo "$RANDOM_PASS\n$RANDOM_PASS\n" | sudo passwd pi;
+
+# [3] Start ssh service
+sudo systemctl start ssh;
+
+# [4] Try to install necessary packages
+sudo apt-get install git;
diff --git a/clone/utility/sats-boot-process.service b/clone/utility/sats-boot-process.service
new file mode 100644
index 0000000..def5600
--- /dev/null
+++ b/clone/utility/sats-boot-process.service
@@ -0,0 +1,12 @@
+[Unit]
+Description=SATS Boot Process
+
+[Service]
+Type=oneshot
+RemainAfterExit=yes
+User=pi
+Group=pi
+ExecStart=/bin/sh /home/pi/sats-install
+
+[Install]
+WantedBy=multi-user.target
diff --git a/clone/utility/service_unit b/clone/utility/sats-boot.service
similarity index 74%
rename from clone/utility/service_unit
rename to clone/utility/sats-boot.service
index b0fb76a..7651eb3 100644
--- a/clone/utility/service_unit
+++ b/clone/utility/sats-boot.service
@@ -4,7 +4,8 @@ Description=SATS (Secure Authentication and Tracking SYSTEM) Daemon
 [Service]
 Type=simple
 User=sats
-ExecStart=/bin/sh /home/sats/satsd/boot
+Group=sats
+ExecStart=/bin/sh /home/sats/satsd/sats-boot
 Restart=on-abort
 
 
diff --git a/clone/utility/shadow_append b/clone/utility/shadow_append
index b18e443..c916fa8 100644
--- a/clone/utility/shadow_append
+++ b/clone/utility/shadow_append
@@ -1,3 +1,2 @@
-pi:$6$k0vFWRoG$bEBdFcFBWw2fLEA.5LsVKOtLWdWSkZMnEikqOG4jHCneRrWEBnEt6.ROe60ggdA7DbdU.l2ZO35WFvi3q6Ays/:17130:0:99999:7:::
-sats:sats-password:17185:0:999999:7::
+sats:*:17185:0:999999:7::