diff --git a/.github/workflows/build-docker.yml b/.github/workflows/build-docker.yml
index 003f6e21d..5f545788f 100644
--- a/.github/workflows/build-docker.yml
+++ b/.github/workflows/build-docker.yml
@@ -16,13 +16,13 @@ on:
         default: 'x86'
   push:
     branches:
-      - master
-      - devel
+      - docker-stable
+      - docker-devel
   pull_request:
     branches:
-      - master
-      - devel
-      - release/*
+      - docker-stable
+      - docker-devel
+      - release/docker/*
 
 jobs:
   build:
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 9874c7e03..5c496b151 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -32,23 +32,26 @@ on:
         required: false
         default: false
   push:
-    tags: ["v*"]
+    tags:
+      - "v*"
+      - "docker-v*"
     branches:
       - master
+      - docker-stable
 
 permissions:
   contents: write
 
 jobs:
   lxd-x86:
-    if: ${{ inputs.lxd || github.event_name != 'workflow_dispatch' }}
+    if: ${{ inputs.lxd || ( github.event_name != 'workflow_dispatch' && !startsWith(github.ref_name, 'docker-') ) }}
     uses: ./.github/workflows/build-lxd.yml
     with:
       git_ref: "${{ inputs.git_ref || github.head_ref || github.ref_name }}"
       arch: 'x86'
     secrets: inherit
   lxd-arm64:
-    if: ${{ inputs.lxd || github.event_name != 'workflow_dispatch' }}
+    if: ${{ inputs.lxd || ( github.event_name != 'workflow_dispatch' && !startsWith(github.ref_name, 'docker-') ) }}
     uses: ./.github/workflows/build-lxd.yml
     with:
       git_ref: "${{ inputs.git_ref || github.head_ref || github.ref_name }}"
@@ -56,7 +59,7 @@ jobs:
     secrets: inherit
 
   docker-x86:
-    if: ${{ inputs.docker || github.event_name != 'workflow_dispatch' }}
+    if: ${{ inputs.docker || ( github.event_name != 'workflow_dispatch' && startsWith(github.ref_name, 'docker-') ) }}
     uses: ./.github/workflows/build-docker.yml
     with:
       git_ref: "${{ inputs.git_ref || github.head_ref || github.ref_name }}"
@@ -64,7 +67,7 @@ jobs:
     secrets: inherit
 
   docker-armhf:
-    if: ${{ inputs.docker || github.event_name != 'workflow_dispatch' }}
+    if: ${{ inputs.docker || ( github.event_name != 'workflow_dispatch' && startsWith(github.ref_name, 'docker-') ) }}
     uses: ./.github/workflows/build-docker.yml
     with:
       git_ref: "${{ inputs.git_ref || github.head_ref || github.ref_name }}"
@@ -72,7 +75,7 @@ jobs:
     secrets: inherit
 
   docker-arm64:
-    if: ${{ inputs.docker || github.event_name != 'workflow_dispatch' }}
+    if: ${{ inputs.docker || ( github.event_name != 'workflow_dispatch' && startsWith(github.ref_name, 'docker-') ) }}
     uses: ./.github/workflows/build-docker.yml
     with:
       git_ref: "${{ inputs.git_ref || github.head_ref || github.ref_name }}"
@@ -80,14 +83,14 @@ jobs:
     secrets: inherit
 
   test-curl-installer:
-    if: ${{ inputs.installer || github.event_name != 'workflow_dispatch' }}
+    if: ${{ inputs.installer || ( github.event_name != 'workflow_dispatch' && !startsWith(github.ref_name, 'docker-') ) }}
     uses: ./.github/workflows/vm-tests.yml
     with:
       git_ref: "${{ inputs.git_ref || github.head_ref || github.ref_name }}"
     secrets: inherit
 
   raspberrypi:
-    if: ${{ inputs.sd-images || github.event_name != 'workflow_dispatch' }}
+    if: ${{ inputs.sd-images || ( github.event_name != 'workflow_dispatch' && !startsWith(github.ref_name, 'docker-') ) }}
     uses: ./.github/workflows/build-sd-images.yml
     with:
       git_ref: "${{ inputs.git_ref || github.head_ref || github.ref_name }}"
@@ -106,7 +109,7 @@ jobs:
       board_name: OdroidHC2
     secrets: inherit
   rockpro64:
-    if: ${{ inputs.sd-images || github.event_name != 'workflow_dispatch' }}
+    if: ${{ inputs.sd-images || ( github.event_name != 'workflow_dispatch' && !startsWith(github.ref_name, 'docker-') ) }}
     uses: ./.github/workflows/build-sd-images.yml
     with:
       git_ref: "${{ inputs.git_ref || github.head_ref || github.ref_name }}"
@@ -114,7 +117,7 @@ jobs:
       board_name: RockPro64
     secrets: inherit
   rock64:
-    if: ${{ inputs.sd-images || github.event_name != 'workflow_dispatch' }}
+    if: ${{ inputs.sd-images || ( github.event_name != 'workflow_dispatch' && !startsWith(github.ref_name, 'docker-') ) }}
     uses: ./.github/workflows/build-sd-images.yml
     with:
       git_ref: "${{ inputs.git_ref || github.head_ref || github.ref_name }}"
@@ -132,7 +135,7 @@ jobs:
       board_name: BananaPi
     secrets: inherit
   odroidhc4:
-    if: ${{ inputs.sd-images || github.event_name != 'workflow_dispatch' }}
+    if: ${{ inputs.sd-images || ( github.event_name != 'workflow_dispatch' && !startsWith(github.ref_name, 'docker-') ) }}
     uses: ./.github/workflows/build-sd-images.yml
     with:
       git_ref: "${{ inputs.git_ref || github.head_ref || github.ref_name }}"
@@ -140,7 +143,7 @@ jobs:
       board_name: OdroidHC4
     secrets: inherit
   odroidc4:
-    if: ${{ inputs.sd-images || github.event_name != 'workflow_dispatch' }}
+    if: ${{ inputs.sd-images || ( github.event_name != 'workflow_dispatch' && !startsWith(github.ref_name, 'docker-') ) }}
     uses: ./.github/workflows/build-sd-images.yml
     with:
       git_ref: "${{ inputs.git_ref || github.head_ref || github.ref_name }}"
@@ -148,7 +151,7 @@ jobs:
       board_name: OdroidC4
     secrets: inherit
   odroidc2:
-    if: ${{ inputs.sd-images || github.event_name != 'workflow_dispatch' }}
+    if: ${{ inputs.sd-images || ( github.event_name != 'workflow_dispatch' && !startsWith(github.ref_name, 'docker-') ) }}
     uses: ./.github/workflows/build-sd-images.yml
     with:
       git_ref: "${{ inputs.git_ref || github.head_ref || github.ref_name }}"
@@ -307,8 +310,7 @@ jobs:
       - docker-x86
       - docker-armhf
       - docker-arm64
-      - test-curl-installer
-    if: ${{ (inputs.release || github.event_name != 'workflow_dispatch') && github.ref_type == 'tag' && (github.ref_protected || startsWith(github.ref, 'refs/tags/v'))  }}
+    if: ${{ (inputs.release || github.event_name != 'workflow_dispatch') && github.ref_type == 'tag' && (github.ref_protected || startsWith(github.ref, 'refs/tags/docker-v'))  }}
     runs-on: ubuntu-latest
     steps:
       - name: Login to DockerHub
@@ -352,6 +354,7 @@ jobs:
           docker manifest push ownyourbits/nextcloudpi:latest
 
   github-release:
+    if: ${{ github.event_name == 'workflow_dispatch' || !startsWith(github.ref_name, 'docker-') }}
     needs:
       - test-curl-installer
     runs-on: ubuntu-latest
diff --git a/bin/ncp/BACKUPS/nc-backup-auto.sh b/bin/ncp/BACKUPS/nc-backup-auto.sh
index 11837ad82..d9d642487 100644
--- a/bin/ncp/BACKUPS/nc-backup-auto.sh
+++ b/bin/ncp/BACKUPS/nc-backup-auto.sh
@@ -47,7 +47,17 @@ fi
 EOF
   chmod +x /usr/local/bin/ncp-backup-auto
 
-  echo "0  3  */${BACKUPDAYS}  *  *  root  /usr/local/bin/ncp-backup-auto >> /var/log/ncp.log 2>&1" > /etc/cron.d/ncp-backup-auto
+  [[ "$BACKUPHOUR" =~ ^([0-1]?[0-9]|2[0-4])$ ]] || {
+    echo "ERROR: 'BACKUPHOUR' must be a number between 0 and 24, was: '$BACKUPHOUR'"
+    return 1
+  }
+
+  [[ "$BACKUPDAYS" =~ ^[0-9]+$ ]] || {
+    echo "ERROR: 'BACKUPDAYS' must be a number, was: '$BACKUPDAYS'"
+    return 1
+  }
+
+  echo "0  ${BACKUPHOUR}  */${BACKUPDAYS}  *  *  root  /usr/local/bin/ncp-backup-auto >> /var/log/ncp.log 2>&1" > /etc/cron.d/ncp-backup-auto
   chmod 644 /etc/cron.d/ncp-backup-auto
   service cron restart
 
diff --git a/bin/ncp/BACKUPS/nc-rsync-auto.sh b/bin/ncp/BACKUPS/nc-rsync-auto.sh
index c9d5ae5fd..f44863b5d 100644
--- a/bin/ncp/BACKUPS/nc-rsync-auto.sh
+++ b/bin/ncp/BACKUPS/nc-rsync-auto.sh
@@ -22,6 +22,16 @@ configure()
     return 0
   }
 
+  [[ "$SYNCHOUR" =~ ^([0-1]?[0-9]|2[0-4])$ ]] || {
+    echo "ERROR: 'BACKUPHOUR' must be a number between 0 and 24, was: '$SYNCHOUR'"
+    return 1
+  }
+
+  [[ "$SYNCDAYS" =~ ^[0-9]+$ ]] || {
+    echo "ERROR: 'BACKUPDAYS' must be a number, was: '$SYNCDAYS'"
+    return 1
+  }
+
   local DATADIR
   DATADIR=$( get_nc_config_value datadirectory ) || {
     echo -e "Error reading data directory. Is NextCloud running and configured?";
@@ -36,7 +46,7 @@ configure()
     ${SSH[@]} echo || { echo "SSH non-interactive not properly configured"; return 1; }
   }
 
-  echo "0  5  */${SYNCDAYS}  *  *  root  /usr/bin/rsync -ax -e \"ssh -p $PORTNUMBER\" --delete \"$DATADIR\" \"$DESTINATION\"" > /etc/cron.d/ncp-rsync-auto
+  echo "0  ${SYNCHOUR}  */${SYNCDAYS}  *  *  root  /usr/bin/rsync -ax -e \"ssh -p $PORTNUMBER\" --delete \"$DATADIR\" \"$DESTINATION\"" > /etc/cron.d/ncp-rsync-auto
   chmod 644 /etc/cron.d/ncp-rsync-auto
   service cron restart
 
diff --git a/bin/ncp/BACKUPS/nc-snapshot-sync.sh b/bin/ncp/BACKUPS/nc-snapshot-sync.sh
index 0c4c905e2..25253bd21 100644
--- a/bin/ncp/BACKUPS/nc-snapshot-sync.sh
+++ b/bin/ncp/BACKUPS/nc-snapshot-sync.sh
@@ -46,6 +46,17 @@ configure()
   }
 
   # checks
+
+  [[ "$SYNCHOUR" =~ ^([0-1]?[0-9]|2[0-4])$ ]] || {
+    echo "ERROR: 'BACKUPHOUR' must be a number between 0 and 24, was: '$SYNCHOUR'"
+    return 1
+  }
+
+  [[ "$SYNCDAYS" =~ ^[0-9]+$ ]] || {
+    echo "ERROR: 'BACKUPDAYS' must be a number, was: '$SYNCDAYS'"
+    return 1
+  }
+
   [[ -d "$SNAPDIR" ]] || { echo "$SNAPDIR does not exist"; return 1; }
   if ! [[ -f /root/.ssh/id_rsa ]]; then ssh-keygen -N "" -f /root/.ssh/id_rsa; fi
 
@@ -62,7 +73,7 @@ configure()
 
   [[ "$COMPRESSION" == "yes" ]] && ZIP="-z"
 
-  echo "30  4  */${SYNCDAYS}  *  *  root  /usr/local/bin/btrfs-sync -qd $ZIP \"$SNAPDIR\" \"$DESTINATION\"" > /etc/cron.d/ncp-snapsync-auto
+  echo "30  ${SYNCHOUR}  */${SYNCDAYS}  *  *  root  /usr/local/bin/btrfs-sync -qd $ZIP \"$SNAPDIR\" \"$DESTINATION\"" > /etc/cron.d/ncp-snapsync-auto
   chmod 644 /etc/cron.d/ncp-snapsync-auto
   service cron restart
 
diff --git a/bin/ncp/CONFIG/nc-limits.sh b/bin/ncp/CONFIG/nc-limits.sh
index 3ce229b46..fb374d578 100644
--- a/bin/ncp/CONFIG/nc-limits.sh
+++ b/bin/ncp/CONFIG/nc-limits.sh
@@ -42,10 +42,13 @@ tmpl_php_max_filesize() {
 }
 
 tmpl_php_threads() {
+  local TOTAL_MEM="$( get_total_mem )"
   local PHPTHREADS="$(find_app_param nc-limits PHPTHREADS)"
-  [[ $PHPTHREADS -eq 0 ]] && PHPTHREADS=$(nproc)
-  [[ $PHPTHREADS -lt 6 ]] && PHPTHREADS=6
-  echo -n "$PHPTHREADS"
+  # By default restricted by memory / 100MB
+  [[ $PHPTHREADS -eq 0 ]] && PHPTHREADS=$(( TOTAL_MEM / ( 100 * 1024 * 1024 ) ))
+  # Minimum 16
+  [[ $PHPTHREADS -lt 16 ]] && PHPTHREADS=16
+   echo -n "$PHPTHREADS"
 }
 
 configure()
diff --git a/changelog.md b/changelog.md
index 1f10773ab..bc540eb27 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,5 +1,11 @@
 # NextcloudPi Changelog
 
+## [v1.51.3](https://github.com/nextcloud/nextcloudpi/tree/v1.51.3) (2023-04-26) Add support for Nextcloud 25.0.6
+
+### Changes
+
+- Add support for NC 25.0.6
+
 ## [v1.51.2](https://github.com/nextcloud/nextcloudpi/tree/v1.51.2) (2023-04-16) Restore support for LXC images
 
 ### Changes
diff --git a/etc/ncp-config.d/nc-backup-auto.cfg b/etc/ncp-config.d/nc-backup-auto.cfg
index 42d0ce262..6bc360b19 100644
--- a/etc/ncp-config.d/nc-backup-auto.cfg
+++ b/etc/ncp-config.d/nc-backup-auto.cfg
@@ -37,6 +37,12 @@
       "suggest": "7",
       "value": "7"
     },
+    {
+      "id": "BACKUPHOUR",
+      "name": "Hour of Day to run the Backup",
+      "suggest": "3",
+      "value": "3"
+    },
     {
       "id": "BACKUPLIMIT",
       "name": "Number of backups to keep",
diff --git a/etc/ncp-config.d/nc-limits.cfg b/etc/ncp-config.d/nc-limits.cfg
index eb31282bb..705d143b1 100644
--- a/etc/ncp-config.d/nc-limits.cfg
+++ b/etc/ncp-config.d/nc-limits.cfg
@@ -2,7 +2,7 @@
   "id": "nc-limits",
   "name": "Nc-limits",
   "title": "nc-limits",
-  "description": "Configure system limits for NextCloudPi",
+  "description": "Configure system limits for NextcloudPi",
   "info": "Examples: 200M or 2G. Write 0 for autoconfig",
   "infotitle": "",
   "params": [
diff --git a/etc/ncp-config.d/nc-nextcloud.cfg b/etc/ncp-config.d/nc-nextcloud.cfg
index 15d301fe6..720f90c9e 100644
--- a/etc/ncp-config.d/nc-nextcloud.cfg
+++ b/etc/ncp-config.d/nc-nextcloud.cfg
@@ -9,7 +9,7 @@
     {
       "id": "VER",
       "name": "Version",
-      "value": "25.0.5"
+      "value": "25.0.6"
     },
     {
       "id": "MAXFILESIZE",
diff --git a/etc/ncp-config.d/nc-rsync-auto.cfg b/etc/ncp-config.d/nc-rsync-auto.cfg
index 490f7a7bb..331475cd3 100644
--- a/etc/ncp-config.d/nc-rsync-auto.cfg
+++ b/etc/ncp-config.d/nc-rsync-auto.cfg
@@ -29,6 +29,12 @@
       "name": "Sync periodicity (in days)",
       "value": "3",
       "suggest": "3"
+    },
+    {
+      "id": "SYNCHOUR",
+      "name": "Hour of Day when syncing",
+      "value": "5",
+      "suggest": "5"
     }
   ]
 }
diff --git a/etc/ncp-config.d/nc-snapshot-sync.cfg b/etc/ncp-config.d/nc-snapshot-sync.cfg
index 961c12e49..0780c5220 100644
--- a/etc/ncp-config.d/nc-snapshot-sync.cfg
+++ b/etc/ncp-config.d/nc-snapshot-sync.cfg
@@ -36,6 +36,12 @@
       "name": "Sync periodicity (in days)",
       "value": "1",
       "suggest": "1"
+    },
+    {
+      "id": "SYNCHOUR",
+      "name": "Hour of Day when syncing",
+      "value": "4",
+      "suggest": "4"
     }
   ]
 }
diff --git a/etc/ncp-templates/php/pool.d.www.conf.sh b/etc/ncp-templates/php/pool.d.www.conf.sh
index c4f8f3f59..c36173528 100644
--- a/etc/ncp-templates/php/pool.d.www.conf.sh
+++ b/etc/ncp-templates/php/pool.d.www.conf.sh
@@ -9,7 +9,7 @@ if [[ "$1" == "--defaults" ]] || ! [[ -f "${BINDIR}/CONFIG/nc-limits.sh" ]]
 then
   echo "INFO: Restoring template to default settings" >&2
 
-  PHPTHREADS=6
+  PHPTHREADS=16
 else
   PHPTHREADS="$(source "${BINDIR}/CONFIG/nc-limits.sh"; tmpl_php_threads)"
 fi
diff --git a/etc/ncp.cfg b/etc/ncp.cfg
index 93a6b0406..38937b122 100644
--- a/etc/ncp.cfg
+++ b/etc/ncp.cfg
@@ -1,5 +1,5 @@
 {
-	"nextcloud_version": "25.0.5",
+	"nextcloud_version": "25.0.6",
 	"php_version": "8.1",
 	"release": "bullseye"
 }