diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 0000000..7a73a41
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,2 @@
+{
+}
\ No newline at end of file
diff --git a/recipes-core/ images/fc-image.bb b/recipes-core/images/fc-image.bb
similarity index 84%
rename from recipes-core/ images/fc-image.bb
rename to recipes-core/images/fc-image.bb
index a1cc72b..31d45d0 100644
--- a/recipes-core/ images/fc-image.bb	
+++ b/recipes-core/images/fc-image.bb
@@ -1,6 +1,6 @@
 SUMMARY = "Flight computer image"
 
-IMAGE_INSTALL = "packagegroup-core-boot ${CORE_IMAGE_EXTRA_INSTALL} packagegroup-core-ssh-openssh kernel-modules i2c-tools libgpiod libgpiod-dev libgpiod-tools srp-startup"
+IMAGE_INSTALL = "packagegroup-core-boot ${CORE_IMAGE_EXTRA_INSTALL} packagegroup-core-ssh-openssh kernel-modules i2c-tools libgpiod libgpiod-dev libgpiod-tools htop srp srp-recover srp-user"
 
 IMAGE_LINGUAS = " "
 
diff --git a/recipes-core/srp-recover/files/srp_recover.sh b/recipes-core/srp-recover/files/srp_recover.sh
new file mode 100644
index 0000000..badae48
--- /dev/null
+++ b/recipes-core/srp-recover/files/srp_recover.sh
@@ -0,0 +1,54 @@
+#!/bin/bash
+
+out_put_file="/srp/token/token.hex"
+out_put_file_ver="/srp/token/token.hex.sha1"
+
+if [ ! -d "/srp/update" ]; then
+        cd /srp
+        mkdir update
+        echo "[SRP-PLATFORM]: [INFO] SRP sw dir  added"
+fi
+
+if [ ! -d "/srp/update/backup" ]; then
+        cd /srp/update
+        mkdir backup
+        echo "[SRP-PLATFORM]: [INFO] Backup dir added"
+fi
+
+if [ ! -d "/srp/update/new" ]; then
+        cd /srp/update
+        mkdir new
+        echo "[SRP-PLATFORM]: [INFO] New dir added"
+fi
+
+if [ ! -d "/srp/update/current" ]; then
+        cd /srp/update
+        mkdir current
+        echo "[SRP-PLATFORM]: [INFO] Current dir added"
+fi
+
+if [ ! -e "/srp/token/token.hex" ]
+then
+        if [ ! -d "/srp/token" ]; then
+                cd /srp
+                mkdir token
+        fi
+        var1="$(cat /sys/class/net/*/address | tr -d '\n')"
+        sec='sec_token2'
+        eng='eng_token2'
+        upload='upload_token2'
+        sec=$var1$sec
+        sec="$(echo $sec | sha256sum)"
+        eng=$var1$eng
+        eng="$(echo $eng | sha256sum)"
+        upload=$var1$upload
+        upload="$(echo $upload | sha256sum)"
+        echo ${sec::-3} > $out_put_file
+        echo ${eng::-3} >> $out_put_file
+        echo ${upload::-3} >> $out_put_file
+        ver_hash="$(sha1sum $out_put_file)"
+        echo $ver_hash > $out_put_file_ver
+        chmod -w $out_put_file
+        chmod -w $out_put_file_ver
+        reboot
+fi
\ No newline at end of file
diff --git a/recipes-core/srp-recover/srp-recover.bb b/recipes-core/srp-recover/srp-recover.bb
new file mode 100644
index 0000000..f3a1ad9
--- /dev/null
+++ b/recipes-core/srp-recover/srp-recover.bb
@@ -0,0 +1,22 @@
+DESCRIPTION = "SRP Initscripts"
+LICENSE = "CLOSED" 
+ 
+SRC_URI += "\
+    file://srp_recover.sh \
+"
+ 
+INITSCRIPT_NAME = "srp_recover.sh" 
+INITSCRIPT_PARAMS = "start 99 5 ." 
+ 
+inherit update-rc.d 
+ 
+S = "${UNPACKDIR}" 
+ 
+do_install () { 
+    install -d ${D}${sysconfdir}/init.d/ 
+    install -c -m 755 ${UNPACKDIR}/${INITSCRIPT_NAME} ${D}${sysconfdir}/init.d/${INITSCRIPT_NAME} 
+} 
+
+DEPENDS = "bash"
+
+RDEPENDS:${PN} = "bash"
\ No newline at end of file
diff --git a/recipes-core/srp-startup/files/srp_start.service b/recipes-core/srp-startup/files/srp_start.service
deleted file mode 100644
index 96d90bd..0000000
--- a/recipes-core/srp-startup/files/srp_start.service
+++ /dev/null
@@ -1,18 +0,0 @@
-[Unit]
-Description=SRP platform start
-StartLimitIntervalSec=30
-StartLimitBurst=2
-After=multi-user.target
-AllowIsolate=yes
-
-[Service]
-Type=simple
-ExecStart=/bin/srp_start.sh
-StandardOutput=journal+console
-StandardError=journal+console
-SyslogIdentifier=srp_start
-Restart=on-failure
-RestartSec=5
-
-[Install]
-WantedBy=multi-user.target
diff --git a/recipes-core/srp-startup/files/srp_start.sh b/recipes-core/srp-startup/files/srp_start.sh
deleted file mode 100644
index e83d6aa..0000000
--- a/recipes-core/srp-startup/files/srp_start.sh
+++ /dev/null
@@ -1,46 +0,0 @@
-#!/bin/sh
-
-if [ ! -d "/etc/simba" ]; then
-        cd /etc
-        mkdir simba
-        echo "SRP sw dir  added"
-fi
-
-if [ ! -d "/etc/simba/backup" ]; then
-        cd /etc/simba
-        mkdir backup
-        echo "Backup dir added"
-fi
-
-if [ ! -d "/etc/simba/new" ]; then
-        cd /etc/simba
-        mkdir new
-        echo "New dir added"
-fi
-
-if [ ! -d "/etc/simba/current" ]; then
-        cd /etc/simba
-        mkdir current
-        echo "Current dir added"
-fi
-
-if [ "$(ls -A /etc/simba/new | grep .tar)" ]; then
-    echo "SRP update detected:"
-    ls -A /etc/simba/new
-
-    if [ ! -d "/opt/cpu_simba/update.sh" ]; then
-        echo "Update script not detected !!!"
-        for file in /etc/simba/new/*.tar; do
-            echo "Opening: $file"
-            cp $file /etc/simba/current
-            tar -xvf $file -C /
-            rm $file
-        done
-    else
-        sh /opt/cpu_simba/update.sh
-    fi
-else
-    echo "SRP update not detected"
-fi
-
-sh /opt/cpu_simba/start_up.sh
\ No newline at end of file
diff --git a/recipes-core/srp-startup/srp-startup.bb b/recipes-core/srp-startup/srp-startup.bb
deleted file mode 100644
index a651714..0000000
--- a/recipes-core/srp-startup/srp-startup.bb
+++ /dev/null
@@ -1,36 +0,0 @@
-SUMMARY = "SRP platform init"
-LICENSE = "CLOSED"
-
-SRC_URI += "\
-    file://srp_start.sh \
-    file://start_up.sh \
-    file://network_interface.sh \
-    file://srp_start.service \
-"
-
-inherit systemd
-
-SYSTEMD_SERVICE:${PN} = "\
-                srp_start.service \
-"
-
-do_install:append() {
-
-    install -d ${D}${systemd_system_unitdir}
-    install -d ${D}/bin
-    install -d ${D}/opt/cpu_simba
-    
-    install -m 0777 ${WORKDIR}/srp_start.sh  ${D}/bin
-
-    install -m 0777 ${WORKDIR}/network_interface.sh ${D}/opt/cpu_simba
-    install -m 0777 ${WORKDIR}/start_up.sh  ${D}/opt/cpu_simba
-
-    install -m 0644 ${WORKDIR}/srp_start.service  ${D}${systemd_system_unitdir}
-}
-
-FILES:${PN} += "\
-    /bin/srp_start.sh \
-    ${systemd_system_unitdir}/srp_start.service \
-    /opt/cpu_simba/start_up.sh \
-    /opt/cpu_simba/network_interface.sh  \
-"
diff --git a/recipes-core/srp-user/srp-user.bb b/recipes-core/srp-user/srp-user.bb
new file mode 100644
index 0000000..01da9d6
--- /dev/null
+++ b/recipes-core/srp-user/srp-user.bb
@@ -0,0 +1,72 @@
+SUMMARY = "Example recipe for using inherit useradd"
+DESCRIPTION = "This recipe serves as an example for using features from useradd.bbclass"
+SECTION = "examples"
+LICENSE = "MIT"
+LIC_FILES_CHKSUM = "file://${COREBASE}/meta/COPYING.MIT;md5=3da9cfbcb788c80a0384361b4de20420"
+
+SRC_URI = "file://file1 \
+           file://file2 \
+           file://file3 \
+           file://file4"
+
+S = "${UNPACKDIR}"
+
+inherit useradd
+
+PACKAGES =+ "${PN}-user3"
+
+# You must set USERADD_PACKAGES when you inherit useradd. This
+# lists which output packages will include the user/group
+# creation code.
+USERADD_PACKAGES = "${PN} ${PN}-user3"
+
+# You must also set USERADD_PARAM and/or GROUPADD_PARAM when
+# you inherit useradd.
+
+# USERADD_PARAM specifies command line options to pass to the
+# useradd command. Multiple users can be created by separating
+# the commands with a semicolon. Here we'll create two users,
+# user1 and user2:
+
+GROUPADD_PARAM:${PN} = "-g 1000 srp ; -g 1001 logs ; -g 1002 persistence ; -g 1003 com ; -g 890 group2;--system gpio;--system i2c;--system tty;--system bin"
+
+# Likewise, we'll manage group3 in the useradd-example-user3 package:
+GROUPADD_PARAM:${PN}-user3 = "-g 900 group3"
+
+USERADD_PARAM:${PN} = "-u 1000 -d /home/srpapp -r -s /bin/bash --groups srp,gpio,i2c,tty,bin,logs,persistence,com srpapp"
+
+# user3 will be managed in the useradd-example-user3 package:
+# As an example, we use the -p option to set password ('user3') for user3
+USERADD_PARAM:${PN}-user3 = "-u 1202 -d /home/user3 -r -s /bin/bash -p '\$6\$XAWr.8nc\$bUE4pYYaVb8n6BbnBitU0zeJMtfhTpFpiOBLL9zRl4e4YQo88UU4r/1kjRzmTimCy.BvDh4xoFwVqcO.pihLa1' user3"
+
+
+GROUPADD_PARAM:${PN}-user3 = "-g 900 group3"
+
+do_install () {
+	install -d -m 755 ${D}${datadir}/srpapp
+	install -d -m 755 ${D}${datadir}/user3
+	install -p -m 644 ${UNPACKDIR}/file1 ${D}${datadir}/srpapp/
+
+	install -p -m 644 ${UNPACKDIR}/file3 ${D}${datadir}/user3/
+	install -p -m 644 ${UNPACKDIR}/file4 ${D}${datadir}/user3/
+	install -d ${D}/persistence
+    install -d ${D}/logs
+    chmod 0666 ${D}/persistence
+    chmod 0666 ${D}/logs
+}
+
+do_rootfs() {
+	chgrp -R persistence ${D}/persistence
+	chgrp -R logs ${D}/logs
+	chgrp -R com ${D}/run
+}
+
+FILES:${PN} = "${datadir}/srpapp/* \
+				/logs \
+				/persistence \
+"
+FILES:${PN}-user3 = "${datadir}/user3/*"
+
+# Prevents do_package failures with:
+# debugsources.list: No such file or directory:
+# INHIBIT_PACKAGE_DEBUG_SPLIT = "1"
diff --git a/recipes-core/srp-user/srp-user/file1 b/recipes-core/srp-user/srp-user/file1
new file mode 100644
index 0000000..e69de29
diff --git a/recipes-core/srp-user/srp-user/file2 b/recipes-core/srp-user/srp-user/file2
new file mode 100644
index 0000000..e69de29
diff --git a/recipes-core/srp-user/srp-user/file3 b/recipes-core/srp-user/srp-user/file3
new file mode 100644
index 0000000..e69de29
diff --git a/recipes-core/srp-user/srp-user/file4 b/recipes-core/srp-user/srp-user/file4
new file mode 100644
index 0000000..e69de29
diff --git a/recipes-core/srp-startup/files/network_interface.sh b/recipes-core/srp/files/network_interface.sh
similarity index 75%
rename from recipes-core/srp-startup/files/network_interface.sh
rename to recipes-core/srp/files/network_interface.sh
index f0861c8..d52ccc5 100644
--- a/recipes-core/srp-startup/files/network_interface.sh
+++ b/recipes-core/srp/files/network_interface.sh
@@ -1,14 +1,13 @@
- 
-#!/bin/sh
+ #!/bin/bash
 ################################################################################
 #
 #   Copyright (c) 2024 Bartosz Snieg.
-#
+#   
 ################################################################################
-#
+#   
 echo "Setting interface: eth0 for ec "
-echo "ip: 192.168.10.101"
+echo "ip: 192.168.10.52"
 echo "net mask 255.255.255.0 "
-ifconfig eth0 192.168.10.101 netmask 255.255.255.0
+ifconfig eth0 192.168.10.52 netmask 255.255.255.0
 echo "Interface set [DONE]"
     
\ No newline at end of file
diff --git a/recipes-core/srp/files/srp_start.sh b/recipes-core/srp/files/srp_start.sh
new file mode 100644
index 0000000..ad94968
--- /dev/null
+++ b/recipes-core/srp/files/srp_start.sh
@@ -0,0 +1,39 @@
+#!/bin/bash
+
+out_put_file="/srp/token/token.hex"
+out_put_file_ver="/srp/token/token.hex.sha1"
+
+if [ ! -d "/srp/update" ]; then
+        cd /srp
+        mkdir update
+        echo "[SRP-PLATFORM]: [INFO] SRP sw dir  added"
+fi
+
+if [ ! -d "/srp/update/backup" ]; then
+        cd /srp/update
+        mkdir backup
+        echo "[SRP-PLATFORM]: [INFO] Backup dir added"
+fi
+
+if [ ! -d "/srp/update/new" ]; then
+        cd /srp/update
+        mkdir new
+        echo "[SRP-PLATFORM]: [INFO] New dir added"
+fi
+
+if [ ! -d "/srp/update/current" ]; then
+        cd /srp/update
+        mkdir current
+        echo "[SRP-PLATFORM]: [INFO] Current dir added"
+fi
+
+if sha1sum -c $out_put_file_ver;
+then
+sh /srp/opt/cpu_srp/start_up.sh
+else
+echo "[SRP-PLATFORM]: [ERROR] Security file breach detected"
+echo "[SRP-PLATFORM]: [INFO] Deletion of invalid token"
+rm $out_put_file
+rm $out_put_file_ver
+echo "[SRP-PLATFORM]: [INFO] Reboot the system"
+fi
\ No newline at end of file
diff --git a/recipes-core/srp-startup/files/start_up.sh b/recipes-core/srp/files/start_up.sh
similarity index 55%
rename from recipes-core/srp-startup/files/start_up.sh
rename to recipes-core/srp/files/start_up.sh
index 50eb94f..759ddcf 100644
--- a/recipes-core/srp-startup/files/start_up.sh
+++ b/recipes-core/srp/files/start_up.sh
@@ -1,14 +1,12 @@
- 
-#!/bin/sh
+ #!/bin/bash
 ################################################################################
 #
 #   Copyright (c) 2024 Bartosz Snieg.
 #
 ################################################################################
 #
-echo "Simab SRP start up script"
+echo "SRP start up script"
 
-sh /opt/cpu_simba/network_interface.sh
-sh /opt/cpu_simba/component_start_up.sh
+sh /srp/opt/cpu_srp/network_interface.sh
 
-echo "Simab SRP start up script [DONE]"
+echo "SRP start up script [DONE]"
diff --git a/recipes-core/srp/files/test.txt b/recipes-core/srp/files/test.txt
new file mode 100644
index 0000000..da7ae7a
--- /dev/null
+++ b/recipes-core/srp/files/test.txt
@@ -0,0 +1,3 @@
+
+f0fe281ebf48da4c8cb23d1cdf5a908c04824b8065fff81f8494730abe4e62b8
+3171dc64bae40fd17caab150af3012e4d6f3a560900c56d2c84af211d98870d9
diff --git a/recipes-core/srp/files/token.hex b/recipes-core/srp/files/token.hex
new file mode 100644
index 0000000..bece978
--- /dev/null
+++ b/recipes-core/srp/files/token.hex
@@ -0,0 +1,2 @@
+f0fe281ebf48da4c8cb23d1cdf5a908c04824b8065fff81f8494730abe4e62b8
+3171dc64bae40fd17caab150af3012e4d6f3a560900c56d2c84af211d98870d9
diff --git a/recipes-core/srp/files/token.hex.sha1 b/recipes-core/srp/files/token.hex.sha1
new file mode 100644
index 0000000..1fe0798
--- /dev/null
+++ b/recipes-core/srp/files/token.hex.sha1
@@ -0,0 +1 @@
+697c683dab6a72bb16e01ca51b085d34e9a23dff token.hex
diff --git a/recipes-core/srp/files/token.hex.verified b/recipes-core/srp/files/token.hex.verified
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/recipes-core/srp/files/token.hex.verified
@@ -0,0 +1 @@
+
diff --git a/recipes-core/srp/srp.bb b/recipes-core/srp/srp.bb
new file mode 100644
index 0000000..0932095
--- /dev/null
+++ b/recipes-core/srp/srp.bb
@@ -0,0 +1,45 @@
+DESCRIPTION = "SRP Initscripts"
+LICENSE = "CLOSED" 
+ 
+SRC_URI += "\
+    file://srp_start.sh \
+    file://start_up.sh \
+    file://network_interface.sh \
+"
+ 
+INITSCRIPT_NAME = "srp_start.sh" 
+INITSCRIPT_PARAMS = "start 1 S ." 
+ 
+inherit update-rc.d 
+ 
+S = "${UNPACKDIR}" 
+ 
+do_install () { 
+    
+    install -d ${D}/srp
+    install -d ${D}/srp/opt
+    install -d ${D}/srp/opt/cpu_srp
+    # install -d ${D}/persistance
+    # install -d ${D}/logs
+    chmod 0755 ${D}/srp
+    # chmod 0666 ${D}/persistance
+    # touch ${D}/persistance/.keep
+    # chmod 0666 ${D}/logs
+    # touch ${D}/logs/.keep
+    install -d ${D}${sysconfdir}/init.d/ 
+    install -c -m 755 ${UNPACKDIR}/${INITSCRIPT_NAME} ${D}${sysconfdir}/init.d/${INITSCRIPT_NAME} 
+
+    install -m 0755 ${UNPACKDIR}/network_interface.sh ${D}/srp/opt/cpu_srp
+    install -m 0755 ${UNPACKDIR}/start_up.sh  ${D}/srp/opt/cpu_srp
+} 
+
+DEPENDS = "bash"
+
+RDEPENDS:${PN} = "bash"
+
+FILES:${PN} += "\
+    /srp/opt/cpu_srp/start_up.sh \
+    /srp/opt/cpu_srp/network_interface.sh  \
+    # /persistance/.keep \
+    # /logs/.keep \
+"
\ No newline at end of file
diff --git a/recipes-kernel/linux/linux-yocto/0003-enable-uart4-bbb.patch b/recipes-kernel/linux/linux-yocto/0003-enable-uart4-bbb.patch
new file mode 100644
index 0000000..ed236c7
--- /dev/null
+++ b/recipes-kernel/linux/linux-yocto/0003-enable-uart4-bbb.patch
@@ -0,0 +1,47 @@
+From 02b262d830263772f9035361138a99ffba19ec8b Mon Sep 17 00:00:00 2001
+From: Kondracki Krzysztof <kondracki.christopher@gmail.com>
+Date: Sat, 18 Apr 2026 00:00:00 +0000
+Subject: [PATCH] ARM: dts: am335x-bone-common: enable UART4 on P9.11/P9.13
+
+BeagleBone Black: mux GPMC_WAIT0 / GPMC_WPN to uart4_rxd / uart4_txd (MODE6)
+and enable uart4.
+---
+ arch/arm/boot/dts/am335x-bone-common.dtsi | 15 +++++++++++++++
+ 1 file changed, 15 insertions(+)
+
+diff --git a/arch/arm/boot/dts/am335x-bone-common.dtsi b/arch/arm/boot/dts/am335x-bone-common.dtsi
+index bc4b703322ee..822a2339ea63 100644
+--- a/arch/arm/boot/dts/am335x-bone-common.dtsi
++++ b/arch/arm/boot/dts/am335x-bone-common.dtsi
+@@ -117,6 +117,14 @@ AM33XX_PADCONF(AM335X_PIN_UART0_TXD, PIN_OUTPUT_PULLDOWN, MUX_MODE0)
+ 		>;
+ 	};
+ 
++	/* UART4 on BBB P9.11 (RX) / P9.13 (TX), MODE6 */
++	bb_uart4_pins: pinmux_bb_uart4_pins {
++		pinctrl-single,pins = <
++			AM33XX_PADCONF(AM335X_PIN_GPMC_WAIT0, PIN_INPUT, MUX_MODE6)	/* P9.11 uart4_rxd */
++			AM33XX_PADCONF(AM335X_PIN_GPMC_WPN, PIN_OUTPUT_PULLDOWN, MUX_MODE6)	/* P9.13 uart4_txd */
++		>;
++	};
++
+ 	clkout2_pin: pinmux_clkout2_pin {
+ 		pinctrl-single,pins = <
+ 			AM33XX_PADCONF(AM335X_PIN_XDMA_EVENT_INTR1, PIN_OUTPUT_PULLDOWN, MUX_MODE3)	/* xdma_event_intr1.clkout2 */
+@@ -212,6 +220,13 @@ &uart0 {
+ 	status = "okay";
+ };
+ 
++&uart4 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&bb_uart4_pins>;
++
++	status = "okay";
++};
++
+ &usb0 {
+ 	dr_mode = "peripheral";
+ 	interrupts-extended = <&intc 18 &tps 0>;
+-- 
+2.43.0
+
diff --git a/recipes-kernel/linux/linux-yocto/config.cfg b/recipes-kernel/linux/linux-yocto/config.cfg
index 35a699a..4f33635 100644
--- a/recipes-kernel/linux/linux-yocto/config.cfg
+++ b/recipes-kernel/linux/linux-yocto/config.cfg
@@ -57,3 +57,11 @@ CONFIG_CAN_C_CAN_PLATFORM=y
 CONFIG_CAN_DEBUG_DEVICES=y
 # end of CAN Device Drivers
 
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+# Enough 8250 ports for UART0..UART4 (and friends) on AM335x
+CONFIG_SERIAL_8250_NR_UARTS=8
+CONFIG_SERIAL_8250_RUNTIME_UARTS=8
+CONFIG_SERIAL_CORE=y
+CONFIG_SERIAL_CORE_CONSOLE=y
+CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
diff --git a/recipes-kernel/linux/linux-yocto_%.bbappend b/recipes-kernel/linux/linux-yocto_%.bbappend
index 5419b92..91ee832 100644
--- a/recipes-kernel/linux/linux-yocto_%.bbappend
+++ b/recipes-kernel/linux/linux-yocto_%.bbappend
@@ -2,5 +2,5 @@ FILESEXTRAPATHS:prepend := "${THISDIR}/${PN}:"
 
 SRC_URI += "file://config.cfg \
             file://0001-bus-config.patch file://0002-pin-config.patch \
-            "
+            file://0003-enable-uart4-bbb.patch"