diff --git a/README.md b/README.md
index 54627e0..73fc554 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,14 @@
 # Bash Scripts collection
 
-TODO: Need install packages for each script
+For email notifications: `apt install postfix`
+
+Configure as internet site and setup this config:
+
+`postconf -e "inet_interfaces = loopback-only"`
+
+`systemctl restart postfix`
+
+`systemctl enable postfix`
 
 ## Permanent enviroment variables in ~/.profile
 
diff --git a/backup_gitea.sh b/backup_gitea.sh
deleted file mode 100644
index f486139..0000000
--- a/backup_gitea.sh
+++ /dev/null
@@ -1,19 +0,0 @@
-#!/bin/bash
-
-PATH=$PATH:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin
-
-GOTIFY_TOKEN="token"
-GOTIFY_MESSAGE="Backup task init: **"`date +"%d/%m/%Y %H:%M:%S"`"**  \r"
-GITEA_DIR="/path/to/gitea"
-BACKUP_FILE="gitea-backup_"`date +\%Y\%m\%d`".zip"
-REMOTE_SERVER="remote.example.com"
-REMOTE_PATH="/path/to/remote/store/backups/"
-
-# gitea
-su - gitea -s /bin/bash -c "$GITEA_DIR/gitea dump -c $GITEA_DIR/custom/conf/app.ini --file $BACKUP_FILE --tempdir $GITEA_DIR/"
-rsync -AaxzPh --remove-source-files "$GITEA_DIR/$BACKUP_FILE" "$REMOTE_SERVER:$REMOTE_PATH"
-
-GOTIFY_MESSAGE="${GOTIFY_MESSAGE} Backup task end: **"`date +"%d/%m/%Y %H:%M:%S"`"**  \r"
-
-# send gotify notification
-sh ./gotifypush.sh "Gitea $(hostname) Backup" "$GOTIFY_MESSAGE" 5 "$GOTIFY_TOKEN"
diff --git a/backup_nc.sh b/backup_nc.sh
deleted file mode 100644
index 24f80b7..0000000
--- a/backup_nc.sh
+++ /dev/null
@@ -1,94 +0,0 @@
-#!/bin/bash
-
-###################################################################################
-# Nextcloud Backups as incremental mode, using rdiff-backup
-#
-# 1. Backup database and send to remote backups server throught rsync using
-# ssh public/private key configuration.
-# 2. Set X days to preserve db backups
-# 3. Backup data folder of nextcloud using rdiff-backup (https://rdiff-backup.net/)
-# 4. Set X days to preserve rdiff-backups increments
-# 5. Get report statistics of rdiff-backup and send push message throught gotify
-# self-hosted server (https://gotify.net/).
-#
-# Tools needed: mysqldump, gzip. rsync, rdiff-backup, curl
-# TODO: save current version 'sudo -u www-data php /var/www/html/nextcloud/occ config:system:get version'
-###################################################################################
-
-PATH=$PATH:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin
-
-# variables push notifications
-readonly GOTIFY_TOKEN="<GOTIFY_TOKEN>"
-readonly GOTIFY_HOST="<GOTIFY_HOST>"
-readonly GOTIFY_PRIORITY=5
-# backup db variables
-readonly BACKUP_DB_FILE="nextcloud-sqlbkp-"`date +\%Y\%m\%d`".sql"
-readonly DB_HOST="<DB_HOST>"
-readonly DB_USER="<DB_USER>"
-readonly DB_PASS="<DB_PASS>"
-readonly DB_NAME="<DB_NAME>"
-# backup data variables
-readonly NEXTCLOUD_DATA="<NEXTCLOUD_DATA>"
-readonly NEXTCLOUD_DIR="<NEXTCLOUD_DIR>"
-readonly INCLUDE_LIST="include-list"
-# remote settings
-readonly REMOTE_SERVER="<REMOTE_SERVER>"
-# TODO: Use $(hostname) "/path/to/example/"`hostname`"/nextcloud"
-readonly REMOTE_PATH="<REMOTE_PATH>"
-readonly REMOTE_NC_DATA_FOLDER="files"
-readonly REMOTE_NC_DB_FOLDER="db"
-readonly REMOTE_NC_DIR_FOLDER="dir"
-readonly BACKUP_PRESERVE_DAYS=60
-
-# create include list file and set exclude logs
-touch $INCLUDE_LIST
-cat > $INCLUDE_LIST <<EOF
-- **nextcloud.log
-- **nextcloud.log*
-- **updater.log
-EOF
-
-# init notification message
-MESSAGE="Backup task init: **"`date +"%d/%m/%Y %H:%M:%S"`"**  \r"
-
-# dump and backup db nextcloud handycat and rsync deleting origin
-mysqldump --single-transaction --verbose -h $DB_HOST -u $DB_USER -p$DB_PASS $DB_NAME > $BACKUP_DB_FILE
-gzip $BACKUP_DB_FILE
-
-# TODO: force create multiple paths (mkdir -p) if not exist with rsync trick
-# https://www.schwertly.com/2013/07/forcing-rsync-to-create-a-remote-path-using-rsync-path/
-rsync -AaxzPh --remove-source-files "$BACKUP_DB_FILE.gz" "$REMOTE_SERVER:$REMOTE_PATH/$REMOTE_NC_DB_FOLDER"
-
-# clear X days old remote db backups
-ssh $REMOTE_SERVER 'bash -s' << EOF
-find "$REMOTE_PATH/$REMOTE_NC_DB_FOLDER" -maxdepth 1 -mtime +$BACKUP_PRESERVE_DAYS -print -exec "rm" -R {} \;
-EOF
-
-# rdiff-backup all dir of nextcloud
-rdiff-backup backup $NEXTCLOUD_DIR "$REMOTE_SERVER::$REMOTE_PATH/$REMOTE_NC_DIR_FOLDER"
-# clear X days old increments of backup dir
-rdiff-backup remove increments --older-than "${BACKUP_PRESERVE_DAYS}D" "$REMOTE_SERVER::$REMOTE_PATH/$REMOTE_NC_DIR_FOLDER"
-
-# rdiff-backup all data of nextcloud
-OUT=$(rdiff-backup backup --print-statistics --include-globbing-filelist $INCLUDE_LIST $NEXTCLOUD_DATA \
-      "$REMOTE_SERVER::$REMOTE_PATH/$REMOTE_NC_DATA_FOLDER")
-# set output lines into array and append notification message
-readarray -t stats <<<"$OUT"
-for val in "${stats[@]}"; do
-    line=$(echo $val | tr -d '-')
-    MESSAGE="${MESSAGE} $line  \r"
-done
-
-# clear X days old increments of backup data
-rdiff-backup remove increments --older-than "${BACKUP_PRESERVE_DAYS}D" \
-  "$REMOTE_SERVER::$REMOTE_PATH/$REMOTE_NC_DATA_FOLDER"
-
-MESSAGE="${MESSAGE} Backup task end: **"`date +"%d/%m/%Y %H:%M:%S"`"**  \r"
-
-rm $INCLUDE_LIST
-
-# send gotify notification
-TITLE="NC $(hostname) Backup"
-EXTRAS="{\"client::display\": {\"contentType\": \"text/markdown\"}}"
-curl -X POST "$GOTIFY_HOST/message?token=$GOTIFY_TOKEN" -H "accept: application/json" -H "Content-Type: application/json" \
-  -d "{ \"message\": \"${MESSAGE}\", \"priority\": ${GOTIFY_PRIORITY}, \"title\": \"${TITLE}\", \"extras\": ${EXTRAS} }"
diff --git a/backups/backup-container.sh b/backups/backup-container.sh
new file mode 100644
index 0000000..6dbf915
--- /dev/null
+++ b/backups/backup-container.sh
@@ -0,0 +1,113 @@
+#!/bin/bash                                                                                                                                                                                                                                   
+                                                                                                                                                                                                                                              
+#########################################################                                                                                                                                                                                     
+#                                                       #                                                                                                                                                                                     
+# Script LXD Backup ct + còpia remota                   #                                                                                                                                                                                     
+# + retenció + email + mida + temps + integritat        #                                                                                                                                                                                     
+#                                                       #
+# Requirements                                          #
+# - Add cron to lxd group: usermod -aG lxd root         #
+# and restart crond: systemctl restart crond            #
+# - Install postfix, set as internet site               #
+# and set configuration as:                             #
+# postconf -e "inet_interfaces = loopback-only"         #                                                                                                                                                   
+#########################################################
+
+# Assegurar els paths per al cron
+PATH=$PATH:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/var/lib/snapd/snap/bin
+
+# --- CONFIGURACIÓ ---                                                                                                 
+CONTAINER="$1"
+REMOTE_HOST="estudiset.backups"            
+REMOTE_DIR="/home/debian/backups/studi7/lxd"
+LOCAL_DIR="/var/backups/lxd"
+EMAIL="roger@estudiset.cat"                   
+DATE=$(date +"%Y-%m-%d_%H-%M-%S")
+
+# --- VALIDACIÓ ---            
+if [ -z "$CONTAINER" ]; then
+    echo "Ús: $0 <nom_container>"
+    exit 1                                    
+fi                                                                                                                     
+
+if ! lxc info "$CONTAINER" >/dev/null 2>&1; then
+    MSG="Error: el contenidor '$CONTAINER' no existeix."
+    echo "$MSG"                      
+    echo "$MSG" | mail -s "[Backup LXD] container $CONTAINER - ERROR" "$EMAIL"
+    exit 1              
+fi                             
+                                                           
+mkdir -p "$LOCAL_DIR"
+                                                           
+# --- TEMPS INICI ---
+START_TIME=$(date +%s)     
+                                                                                                                       
+# --- CREAR BACKUP LOCAL ---
+BACKUP_FILE="${LOCAL_DIR}/${CONTAINER}_${DATE}.zstd"
+                                                           
+echo "Creant backup del contenidor '$CONTAINER'..."
+if ! lxc export "$CONTAINER" "$BACKUP_FILE"; then
+    MSG="Error: no s'ha pogut crear el backup del contenidor $CONTAINER."
+    echo "$MSG"
+    echo "$MSG" | mail -s "[Backup LXD] container $CONTAINER - ERROR" "$EMAIL"
+    exit 1                   
+fi                            
+                                                           
+# Mida del backup
+BACKUP_SIZE=$(du -h "$BACKUP_FILE" | awk '{print $1}')
+                                                                                                                       
+# Hash local
+LOCAL_HASH=$(sha256sum "$BACKUP_FILE" | awk '{print $1}')
+
+# --- ENVIAR A SERVIDOR REMOT ---
+echo "Enviant backup al servidor remot..."
+if ! scp "$BACKUP_FILE" "${REMOTE_HOST}:${REMOTE_DIR}/"; then
+    MSG="Error: no s'ha pogut copiar el backup al servidor remot."
+    echo "$MSG"
+    echo "$MSG" | mail -s "[Backup LXD] container $CONTAINER - ERROR" "$EMAIL"
+    exit 1
+fi
+
+# --- VERIFICACIÓ D'INTEGRITAT ---
+REMOTE_HASH=$(ssh "${REMOTE_HOST}" "sha256sum ${REMOTE_DIR}/$(basename "$BACKUP_FILE") | awk '{print \$1}'")
+
+if [ "$LOCAL_HASH" = "$REMOTE_HASH" ]; then
+    INTEGRITY="OK — la còpia és idèntica"
+else
+    INTEGRITY="ERROR — el hash no coincideix!"
+fi
+
+# --- ELIMINAR BACKUP LOCAL ---
+rm -f "$BACKUP_FILE"
+
+# --- ROTACIÓ DE BACKUPS AL SERVIDOR REMOT ---
+ssh "${REMOTE_HOST}" "find ${REMOTE_DIR} -type f -mtime +7 -name '${CONTAINER}_*.zstd' -delete"
+
+# --- TEMPS FINAL ---
+END_TIME=$(date +%s)
+TOTAL_TIME=$((END_TIME - START_TIME))
+
+H=$((TOTAL_TIME / 3600))
+M=$(((TOTAL_TIME % 3600) / 60))
+S=$((TOTAL_TIME % 60))
+
+TIME_FORMAT="${H}h ${M}m ${S}s"
+
+# --- NOTIFICACIÓ EMAIL ---
+SUCCESS_MSG="Backup del contenidor '$CONTAINER' completat correctament.
+
+Servidor remot: ${REMOTE_HOST}
+Ruta: $REMOTE_DIR
+Fitxer: $BACKUP_FILE
+Mida del backup: ${BACKUP_SIZE}
+Temps total del procés: ${TIME_FORMAT}
+
+Integritat:
+ - Hash local:  ${LOCAL_HASH}
+ - Hash remot:  ${REMOTE_HASH}
+ - Estat:       ${INTEGRITY}
+"
+
+echo "$SUCCESS_MSG" | mail -s "[Backup LXD] contenidor $CONTAINER - OK" "$EMAIL"
+
+echo "$SUCCESS_MSG"
\ No newline at end of file
diff --git a/backups/backup_gitea.sh b/backups/backup_gitea.sh
new file mode 100644
index 0000000..1196bf5
--- /dev/null
+++ b/backups/backup_gitea.sh
@@ -0,0 +1,66 @@
+#!/bin/bash         
+                                                           
+#########################################################
+#                                                       #
+# Script Backup Gitea + còpia remota + retenció  dies   #
+# + email + mida + temps + integritat                   #
+#                                                       #
+#########################################################
+                                                           
+# Assegurar els paths per al cron
+PATH=$PATH:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin
+
+# --- CONFIGURACIÓ ---
+GITEA_DIR="/opt/gitea"
+BACKUP_FILE="gitea-backup_$(date +%Y-%m-%d_%H-%M-%S).tar.gz"
+REMOTE_SERVER="estudiset.backups"
+REMOTE_PATH="/home/debian/backups/studi7/gitea/"
+EMAIL="roger@estudiset.cat"
+RETENTION_DAYS=7
+
+# Dump gitea
+su - gitea -s /bin/bash -c "$GITEA_DIR/gitea dump -c $GITEA_DIR/custom/conf/app.ini --file $GITEA_DIR/$BACKUP_FILE --tempdir $GITEA_DIR/"
+
+# Mida del backup
+BACKUP_SIZE=$(du -h "$GITEA_DIR/$BACKUP_FILE" | awk '{print $1}')
+
+# Hash local
+LOCAL_HASH=$(sha256sum "$GITEA_DIR/$BACKUP_FILE" | awk '{print $1}')
+
+# --- ENVIAR A SERVIDOR REMOT ---
+rsync -AaxzPh --remove-source-files "$GITEA_DIR/$BACKUP_FILE" "$REMOTE_SERVER:$REMOTE_PATH"
+if [ $? -ne 0 ]; then
+    echo "ERROR: No s'ha pogut copiar el backup al servidor remot." | mail -s "[Backup Gitea] ERROR" "$EMAIL"
+    exit 1
+fi
+
+# --- HASH REMOT ---
+REMOTE_HASH=$(ssh "$REMOTE_SERVER" "sha256sum ${REMOTE_PATH}/${BACKUP_FILE} 2>/dev/null | awk '{print \$1}'")
+
+if [ "$LOCAL_HASH" = "$REMOTE_HASH" ]; then
+    INTEGRITY="OK — la còpia és idèntica"
+else
+    INTEGRITY="ERROR — el hash no coincideix!"
+fi
+
+# --- RETENCIÓ DE 7 DIES ---
+ssh "$REMOTE_SERVER" "find $REMOTE_PATH -type f -mtime +$RETENTION_DAYS -name 'gitea-backup_*.tar.gz' -delete"
+
+# --- EMAIL DE RESULTAT ---
+MSG="Backup de Gitea completat correctament.
+
+Servidor remot: $REMOTE_SERVER
+Ruta: $REMOTE_PATH
+Fitxer: $BACKUP_FILE
+Mida: $BACKUP_SIZE
+
+Integritat:
+ - Hash local:  $LOCAL_HASH
+ - Hash remot:  $REMOTE_HASH
+ - Estat:       $INTEGRITY
+
+Retenció: S'han eliminat backups de més de 7 dies."
+
+echo "$MSG" | mail -s "[Backup Gitea] OK" "$EMAIL"
+
+echo "$MSG"
\ No newline at end of file
diff --git a/backups/backup_nextcloud.sh b/backups/backup_nextcloud.sh
new file mode 100644
index 0000000..a1f8fc6
--- /dev/null
+++ b/backups/backup_nextcloud.sh
@@ -0,0 +1,115 @@
+#!/bin/bash                                                                                                                                                                                                                                   
+
+#########################################################
+#                                                       #
+# Script Backup Nextcloud + còpia remota + retenció     #
+# dies + email + mida + temps + integritat              #
+#                                                       #
+#########################################################
+
+PATH=$PATH:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin                                                                                                                                                                                       
+                                                                                                                                                                                                                                              
+# --- CONFIGURACIÓ EMAIL ---                                                                                                                                                                                                                  
+EMAIL="roger@estudiset.cat"                                                                                                                                                                                                                   
+                                                                                                                                                                                                                                              
+# backup db variables                                                                                                                                                                                                                         
+readonly BACKUP_DB_FILE="nextcloud-sqlbkp-$(date +%Y-%m-%d_%H-%M-%S).sql"                                                                                                                                                                                
+readonly DB_HOST="localhost"                                                                                                                                                                                                                  
+readonly DB_USER="nextcloud"                                                                                                                                                                                                                  
+readonly DB_PASS="3mZlNTeS"                                                                                                                                                                                                                   
+readonly DB_NAME="nextcloud"                                                                                                                                                                                                                  
+                                                                                                                                                                                                                                              
+# backup data variables                                                                                                                                                                                                                       
+readonly NEXTCLOUD_DATA="/opt/nextcloud/data"                                                                                                                                                                                                 
+readonly NEXTCLOUD_DIR="/var/www/html/nextcloud"                                                                                                                                                                                              
+readonly INCLUDE_LIST="include-list"  
+
+# remote settings                                                                                                                                                                                                                             
+readonly REMOTE_SERVER="estudiset.backups"
+readonly REMOTE_PATH="/home/debian/backups/studi7/nextcloud"
+readonly REMOTE_NC_DATA_FOLDER="files"      
+readonly REMOTE_NC_DB_FOLDER="db"
+readonly REMOTE_NC_DIR_FOLDER="dir"
+readonly BACKUP_PRESERVE_DAYS=7                                                                                        
+
+# init notification message         
+MESSAGE="Backup Nextcloud iniciat: $(date +"%d/%m/%Y %H:%M:%S")\n\n"                     
+                                                           
+# create include list file                                                                                             
+cat > $INCLUDE_LIST <<EOF
+- **nextcloud.log
+- **nextcloud.log*
+- **updater.log                                                                                                                                                                                                                               
+EOF
+                                                           
+# --- BACKUP BASE DE DADES ---
+mysqldump --single-transaction --verbose -h $DB_HOST -u $DB_USER -p$DB_PASS $DB_NAME > $BACKUP_DB_FILE
+if [ $? -ne 0 ]; then                                                                                                  
+    echo -e "ERROR: Fallada al mysqldump\n" | mail -s "[Backup Nextcloud] ERROR" "$EMAIL"
+    exit 1
+fi                   
+                                                                                                                       
+gzip "$BACKUP_DB_FILE"
+                                                           
+# --- HASH LOCAL ---
+LOCAL_HASH=$(sha256sum "$BACKUP_DB_FILE.gz" | awk '{print $1}')
+
+# --- ENVIAR A SERVIDOR REMOT ---                                                                                      
+rsync -AaxzPh --remove-source-files "$BACKUP_DB_FILE.gz" "$REMOTE_SERVER:$REMOTE_PATH/$REMOTE_NC_DB_FOLDER"
+if [ $? -ne 0 ]; then
+    echo -e "ERROR: Fallada enviant el backup SQL al servidor remot\n" | mail -s "[Backup Nextcloud] ERROR" "$EMAIL"
+    exit 1
+fi              
+
+# --- HASH REMOT ---  
+REMOTE_HASH=$(ssh "$REMOTE_SERVER" "sha256sum '$REMOTE_PATH/$REMOTE_NC_DB_FOLDER/$BACKUP_DB_FILE.gz' 2>/dev/null | awk '{print \$1}'")
+
+# --- COMPARACIÓ ---
+if [ "$LOCAL_HASH" = "$REMOTE_HASH" ]; then
+    DB_INTEGRITY="OK — hash coincident"
+else
+    DB_INTEGRITY="ERROR — hash NO coincideix!"
+fi
+
+MESSAGE+="Backup BD OK\n"
+MESSAGE+="Integritat BD:\n"
+MESSAGE+=" - Hash local:  $LOCAL_HASH\n"
+MESSAGE+=" - Hash remot:  $REMOTE_HASH\n"
+MESSAGE+=" - Estat:       $DB_INTEGRITY\n\n"
+
+# --- NETEJA BACKUPS BD ANTICS ---
+ssh $REMOTE_SERVER "find '$REMOTE_PATH/$REMOTE_NC_DB_FOLDER' -maxdepth 1 -mtime +$BACKUP_PRESERVE_DAYS -delete"
+
+# --- BACKUP DIRECTORI NEXTCLOUD ---
+rdiff-backup backup "$NEXTCLOUD_DIR" "$REMOTE_SERVER::$REMOTE_PATH/$REMOTE_NC_DIR_FOLDER"
+if [ $? -ne 0 ]; then
+    echo -e "ERROR: Fallada rdiff-backup del directori Nextcloud\n" | mail -s "[Backup Nextcloud] ERROR" "$EMAIL"
+    exit 1
+fi
+
+rdiff-backup remove increments --force --older-than "${BACKUP_PRESERVE_DAYS}D" "$REMOTE_SERVER::$REMOTE_PATH/$REMOTE_NC_DIR_FOLDER"
+
+MESSAGE+="Backup directori Nextcloud OK\n"
+
+# --- BACKUP DADES NEXTCLOUD ---
+OUT=$(rdiff-backup backup --print-statistics --include-globbing-filelist $INCLUDE_LIST \
+      "$NEXTCLOUD_DATA" "$REMOTE_SERVER::$REMOTE_PATH/$REMOTE_NC_DATA_FOLDER")
+
+if [ $? -ne 0 ]; then
+    echo -e "ERROR: Fallada rdiff-backup de dades Nextcloud\n" | mail -s "[Backup Nextcloud] ERROR" "$EMAIL"
+    exit 1
+fi
+
+MESSAGE+="\nEstadístiques rdiff-backup dades:\n$OUT\n"
+
+rdiff-backup remove increments --force --older-than "${BACKUP_PRESERVE_DAYS}D" \
+  "$REMOTE_SERVER::$REMOTE_PATH/$REMOTE_NC_DATA_FOLDER"
+
+MESSAGE+="\nBackup finalitzat: $(date +"%d/%m/%Y %H:%M:%S")\n"
+
+rm $INCLUDE_LIST
+
+# --- ENVIAR EMAIL ---
+echo -e "$MESSAGE" | mail -s "[Backup Nextcloud] OK" "$EMAIL"
+
+echo -e "$MESSAGE"