Merge branch 'notifications' into next

These are generated with my 'RouterOS-Scripts Notification Generator':
https://eworm.de/ros/notification/

46 files changed, 17 insertions, 666 deletions

diff --git a/README.d/news-and-changes-notification.avif b/README.d/news-and-changes-notification.avif
new file mode 100644
index 0000000..547c15c
--- /dev/null
+++ b/README.d/news-and-changes-notification.avif
diff --git a/README.d/news-and-changes-notification.svg b/README.d/news-and-changes-notification.svg
deleted file mode 100644
index ab8d611..0000000
--- a/README.d/news-and-changes-notification.svg
+++ /dev/null
@@ -1,40 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<svg id="svg8" width="490" height="200" version="1.1" viewBox="0 0 129.65 52.917" xmlns="http://www.w3.org/2000/svg" xmlns:cc="http://creativecommons.org/ns#" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
- <metadata id="metadata5">
-  <rdf:RDF>
-   <cc:Work rdf:about="">
-    <dc:format>image/svg+xml</dc:format>
-    <dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage"/>
-   </cc:Work>
-  </rdf:RDF>
- </metadata>
- <g id="layer1" transform="translate(16.375 11.083)">
-  <rect id="rect857" x="-15.875" y="-10.583" width="128.65" height="51.917" rx="1.6081" fill="#e6e6e6" stroke="#6c5d53" stroke-linecap="round" stroke-linejoin="round"/>
-  <g id="g884" transform="matrix(.5 0 0 .5 -12.406 -7.1146)" stroke-width="2">
-   <path id="path899" d="m23.177 23.177c-2.9635 2.9635-17.991 2.9635-20.955 0-2.9635-2.9635-2.9635-17.991 0-20.955 2.9635-2.9635 17.991-2.9635 20.955 0 2.9635 2.9635 2.9635 17.991 0 20.955z" fill="#fff"/>
-   <g id="g871">
-    <g id="text837" stroke-width=".52916px" aria-label="#!rsc">
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-     <path id="path853" d="m9.6187 14.179h-1.6382l0.19502 4.271h1.2481zm-0.81909 5.1583c-0.48755 0-0.8776 0.39979-0.8776 0.8776 0 0.48755 0.39004 0.88735 0.8776 0.88735 0.4973 0 0.88735-0.39979 0.88735-0.88735 0-0.4778-0.39004-0.8776-0.88735-0.8776z"/>
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-     <path id="path857" d="m16.181 15.592c-1.3066 0-2.116 0.69233-2.116 1.5797 0 0.79959 0.50706 1.3261 1.5309 1.6187 0.9361 0.26328 1.0921 0.37054 1.0921 0.72158 0 0.31203-0.28278 0.48755-0.75083 0.48755-0.50706 0-0.98486-0.20477-1.3749-0.50706l-0.75083 0.83859c0.50706 0.4583 1.2676 0.77033 2.1647 0.77033 1.2871 0 2.3012-0.63382 2.3012-1.7064 0-0.92635-0.57531-1.3554-1.5992-1.6479-0.92635-0.27303-1.0629-0.39004-1.0629-0.66307 0-0.23402 0.20477-0.39004 0.62407-0.39004 0.44855 0 0.8776 0.14627 1.2774 0.39979l0.56556-0.86784c-0.4778-0.39004-1.1506-0.63382-1.9015-0.63382z"/>
-     <path id="path859" d="m21.281 15.592c-1.5504 0-2.5353 1.1506-2.5353 2.7986 0 1.6382 0.97511 2.7108 2.5645 2.7108 0.71183 0 1.2676-0.23403 1.7454-0.61432l-0.67282-0.9556c-0.37054 0.23403-0.62407 0.35104-0.99461 0.35104-0.61432 0-1.0239-0.35104-1.0239-1.5017 0-1.1604 0.38029-1.6089 1.0434-1.6089 0.35104 0 0.65332 0.11701 0.98486 0.37054l0.66307-0.9166c-0.4973-0.4193-1.0531-0.63382-1.7747-0.63382z"/>
-    </g>
-    <g id="g1542" transform="matrix(2 0 0 2 -.41134 3.175)" fill="#676867" fill-rule="evenodd" stroke-width=".26458">
-     <path id="path943" d="m4.9596-1.0196c0.40797 2.8312 1.9272 4.5499 5.0239 4.691-2.918 1.1164-5.9253-1.5076-5.0239-4.691"/>
-     <path id="path945" d="m3.3407-0.52096c0.034969-0.00777 0.038854 0.015542 0.041445 0.041445 0.098431 1.8054 0.85998 3.1744 1.8689 4.1108 1.0089 0.93639 2.3636 1.6941 4.274 1.6604-3.5772 1.4247-7.337-1.9984-6.1856-5.8126"/>
-    </g>
-   </g>
-  </g>
-  <text id="text4811" transform="matrix(.26458 0 0 .26458 -44.95 -6.6039)" x="-248.88142" fill="#000000" font-family="'Fira Mono', 'Roboto Mono', monospace" font-size="12px" letter-spacing="0px" stroke-width="1px" word-spacing="0px" style="font-variant-caps:normal;font-variant-east-asian:normal;font-variant-ligatures:normal;font-variant-numeric:normal;line-height:15px;shape-inside:url(#rect4813);white-space:pre" xml:space="preserve"><tspan id="tspan490" x="180" y="10.85">[MikroTik] 📌 News and configuration changes
-</tspan><tspan id="tspan492" x="180" y="25.85">
-</tspan><tspan id="tspan494" x="180" y="40.85">The configuration version on MikroTik increased to 84,
-</tspan><tspan id="tspan496" x="180" y="55.85">current configuration may need modification. Please
-</tspan><tspan id="tspan498" x="180" y="70.85">review and update global-config-overlay, then re-run
-</tspan><tspan id="tspan500" x="180" y="85.85">global-config.
-</tspan><tspan id="tspan502" x="180" y="100.85">
-</tspan><tspan id="tspan504" x="180" y="115.85">Changes:
-</tspan><tspan id="tspan506" x="180" y="130.85"> ● Introduced new setting to disable news and change
-</tspan><tspan id="tspan508" x="180" y="145.85">notifications, dropped version from configuration.</tspan></text>
- </g>
-</svg>
diff --git a/README.md b/README.md
index 56d39e8..a664c06 100644
--- a/README.md
+++ b/README.md
@@ -127,7 +127,7 @@ everything is up-to-date it will not produce any output.
 If the update includes news or requires configuration changes a notification
 is sent - in addition to terminal output and log messages.
 
-![news and changes notification](README.d/news-and-changes-notification.svg)
+![news and changes notification](README.d/news-and-changes-notification.avif)
 
 Adding a script
 ---------------
diff --git a/doc/backup-cloud.d/notification.avif b/doc/backup-cloud.d/notification.avif
new file mode 100644
index 0000000..623ea3b
--- /dev/null
+++ b/doc/backup-cloud.d/notification.avif
diff --git a/doc/backup-cloud.d/notification.svg b/doc/backup-cloud.d/notification.svg
deleted file mode 100644
index a0eed63..0000000
--- a/doc/backup-cloud.d/notification.svg
+++ /dev/null
@@ -1,46 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<svg id="svg8" width="403.78" height="273.78" version="1.1" viewBox="0 0 106.83 72.437" xmlns="http://www.w3.org/2000/svg" xmlns:cc="http://creativecommons.org/ns#" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
- <metadata id="metadata5">
-  <rdf:RDF>
-   <cc:Work rdf:about="">
-    <dc:format>image/svg+xml</dc:format>
-    <dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage"/>
-   </cc:Work>
-  </rdf:RDF>
- </metadata>
- <g id="layer1" transform="translate(16.375 11.083)">
-  <rect id="rect857" x="-15.875" y="-10.583" width="105.83" height="71.437" rx="1.3229" fill="#e6e6e6" stroke="#6c5d53" stroke-linecap="round" stroke-linejoin="round"/>
-  <g id="g884" transform="matrix(.5 0 0 .5 -12.406 -7.1146)" stroke-width="2">
-   <path id="path899" d="m23.177 23.177c-2.9635 2.9635-17.991 2.9635-20.955 0-2.9635-2.9635-2.9635-17.991 0-20.955 2.9635-2.9635 17.991-2.9635 20.955 0 2.9635 2.9635 2.9635 17.991 0 20.955z" fill="#fff"/>
-   <g id="g871">
-    <g id="text837" stroke-width=".52916px" aria-label="#!rsc">
-     <path id="path851" d="m7.4832 16.646v-1.0239h-0.54606l0.16577-1.2774h-1.2774l-0.16577 1.2774h-0.97511l0.16577-1.2774h-1.2774l-0.16577 1.2774h-0.70208v1.0239h0.56556l-0.24378 1.8722h-0.68257v1.0239h0.54606l-0.18527 1.3944h1.2774l0.18527-1.3944h0.97511l-0.18527 1.3944h1.2774l0.18527-1.3944h0.70208v-1.0239h-0.56556l0.24378-1.8722zm-2.2037 1.8722h-0.97511l0.24378-1.8722h0.97511z"/>
-     <path id="path853" d="m9.6187 14.179h-1.6382l0.19502 4.271h1.2481zm-0.81909 5.1583c-0.48755 0-0.8776 0.39979-0.8776 0.8776 0 0.48755 0.39004 0.88735 0.8776 0.88735 0.4973 0 0.88735-0.39979 0.88735-0.88735 0-0.4778-0.39004-0.8776-0.88735-0.8776z"/>
-     <path id="path855" d="m13.373 15.612c-0.59482 0-1.1019 0.42905-1.3359 1.1506l-0.13652-1.0044h-1.3359v5.1778h1.5407v-2.6035c0.17552-0.77033 0.4388-1.2286 1.0726-1.2286 0.16577 0 0.30228 0.02925 0.46805 0.06826l0.24378-1.4919c-0.17552-0.04875-0.32178-0.06826-0.51681-0.06826z"/>
-     <path id="path857" d="m16.181 15.592c-1.3066 0-2.116 0.69233-2.116 1.5797 0 0.79959 0.50706 1.3261 1.5309 1.6187 0.9361 0.26328 1.0921 0.37054 1.0921 0.72158 0 0.31203-0.28278 0.48755-0.75083 0.48755-0.50706 0-0.98486-0.20477-1.3749-0.50706l-0.75083 0.83859c0.50706 0.4583 1.2676 0.77033 2.1647 0.77033 1.2871 0 2.3012-0.63382 2.3012-1.7064 0-0.92635-0.57531-1.3554-1.5992-1.6479-0.92635-0.27303-1.0629-0.39004-1.0629-0.66307 0-0.23402 0.20477-0.39004 0.62407-0.39004 0.44855 0 0.8776 0.14627 1.2774 0.39979l0.56556-0.86784c-0.4778-0.39004-1.1506-0.63382-1.9015-0.63382z"/>
-     <path id="path859" d="m21.281 15.592c-1.5504 0-2.5353 1.1506-2.5353 2.7986 0 1.6382 0.97511 2.7108 2.5645 2.7108 0.71183 0 1.2676-0.23403 1.7454-0.61432l-0.67282-0.9556c-0.37054 0.23403-0.62407 0.35104-0.99461 0.35104-0.61432 0-1.0239-0.35104-1.0239-1.5017 0-1.1604 0.38029-1.6089 1.0434-1.6089 0.35104 0 0.65332 0.11701 0.98486 0.37054l0.66307-0.9166c-0.4973-0.4193-1.0531-0.63382-1.7747-0.63382z"/>
-    </g>
-    <g id="g1542" transform="matrix(2 0 0 2 -.41134 3.175)" fill="#676867" fill-rule="evenodd" stroke-width=".26458">
-     <path id="path943" d="m4.9596-1.0196c0.40797 2.8312 1.9272 4.5499 5.0239 4.691-2.918 1.1164-5.9253-1.5076-5.0239-4.691"/>
-     <path id="path945" d="m3.3407-0.52096c0.034969-0.00777 0.038854 0.015542 0.041445 0.041445 0.098431 1.8054 0.85998 3.1744 1.8689 4.1108 1.0089 0.93639 2.3636 1.6941 4.274 1.6604-3.5772 1.4247-7.337-1.9984-6.1856-5.8126"/>
-    </g>
-   </g>
-  </g>
-  <text id="text4811" transform="matrix(.26458 0 0 .26458 -44.95 -6.6039)" x="-248.88142" fill="#000000" font-family="'Fira Mono', 'Roboto Mono', monospace" font-size="12px" letter-spacing="0px" stroke-width="1px" word-spacing="0px" style="font-variant-caps:normal;font-variant-east-asian:normal;font-variant-ligatures:normal;font-variant-numeric:normal;line-height:15px;shape-inside:url(#rect4813);white-space:pre" xml:space="preserve"><tspan id="tspan13469" x="180" y="10.85">[MikroTik] 💾☁ Cloud backup
-</tspan><tspan id="tspan13471" x="180" y="26.082813">
-</tspan><tspan id="tspan13473" x="180" y="41.082813">Uploaded backup for MikroTik to cloud.
-</tspan><tspan id="tspan13475" x="180" y="56.082811">
-</tspan><tspan id="tspan13477" x="180" y="71.082811">Hostname:       MikroTik
-</tspan><tspan id="tspan13479" x="180" y="86.082811">Board name:     CHR
-</tspan><tspan id="tspan13481" x="180" y="101.08281">Architecture:   x86_64
-</tspan><tspan id="tspan13483" x="180" y="116.08281">RouterOS:
-</tspan><tspan id="tspan13485" x="180" y="131.08281">    Channel:    stable
-</tspan><tspan id="tspan13487" x="180" y="146.08282">    Installed:  7.4.1
-</tspan><tspan id="tspan13489" x="180" y="161.08282">RouterOS-Scripts:
-</tspan><tspan id="tspan13491" x="180" y="176.08282">    Version:    83
-</tspan><tspan id="tspan13493" x="180" y="191.08282">
-</tspan><tspan id="tspan13495" x="180" y="206.08282">Name:           cloud-20220224-092419
-</tspan><tspan id="tspan13497" x="180" y="221.08282">Size:           370767 B (362 KiB)
-</tspan><tspan id="tspan13499" x="180" y="236.08282">Download key:   LLDBfPcWXxmSetWilqeJX5V</tspan></text>
- </g>
-</svg>
diff --git a/doc/backup-cloud.md b/doc/backup-cloud.md
index 130e3f6..26f7db7 100644
--- a/doc/backup-cloud.md
+++ b/doc/backup-cloud.md
@@ -19,7 +19,7 @@ This script uploads
 
 ### Sample notification
 
-![backup-cloud notification](backup-cloud.d/notification.svg)
+![backup-cloud notification](backup-cloud.d/notification.avif)
 
 Requirements and installation
 -----------------------------
diff --git a/doc/backup-upload.d/notification.avif b/doc/backup-upload.d/notification.avif
new file mode 100644
index 0000000..277cab4
--- /dev/null
+++ b/doc/backup-upload.d/notification.avif
diff --git a/doc/backup-upload.d/notification.svg b/doc/backup-upload.d/notification.svg
deleted file mode 100644
index 73b34bd..0000000
--- a/doc/backup-upload.d/notification.svg
+++ /dev/null
@@ -1,45 +0,0 @@
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-<svg id="svg8" width="443.78" height="263.78" version="1.1" viewBox="0 0 117.42 69.792" xmlns="http://www.w3.org/2000/svg" xmlns:cc="http://creativecommons.org/ns#" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
- <metadata id="metadata5">
-  <rdf:RDF>
-   <cc:Work rdf:about="">
-    <dc:format>image/svg+xml</dc:format>
-    <dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage"/>
-   </cc:Work>
-  </rdf:RDF>
- </metadata>
- <g id="layer1" transform="translate(16.375 11.083)">
-  <rect id="rect857" x="-15.875" y="-10.583" width="116.42" height="68.792" rx="1.4552" fill="#e6e6e6" stroke="#6c5d53" stroke-linecap="round" stroke-linejoin="round"/>
-  <g id="g884" transform="matrix(.5 0 0 .5 -12.406 -7.1146)" stroke-width="2">
-   <path id="path899" d="m23.177 23.177c-2.9635 2.9635-17.991 2.9635-20.955 0-2.9635-2.9635-2.9635-17.991 0-20.955 2.9635-2.9635 17.991-2.9635 20.955 0 2.9635 2.9635 2.9635 17.991 0 20.955z" fill="#fff"/>
-   <g id="g871">
-    <g id="text837" stroke-width=".52916px" aria-label="#!rsc">
-     <path id="path851" d="m7.4832 16.646v-1.0239h-0.54606l0.16577-1.2774h-1.2774l-0.16577 1.2774h-0.97511l0.16577-1.2774h-1.2774l-0.16577 1.2774h-0.70208v1.0239h0.56556l-0.24378 1.8722h-0.68257v1.0239h0.54606l-0.18527 1.3944h1.2774l0.18527-1.3944h0.97511l-0.18527 1.3944h1.2774l0.18527-1.3944h0.70208v-1.0239h-0.56556l0.24378-1.8722zm-2.2037 1.8722h-0.97511l0.24378-1.8722h0.97511z"/>
-     <path id="path853" d="m9.6187 14.179h-1.6382l0.19502 4.271h1.2481zm-0.81909 5.1583c-0.48755 0-0.8776 0.39979-0.8776 0.8776 0 0.48755 0.39004 0.88735 0.8776 0.88735 0.4973 0 0.88735-0.39979 0.88735-0.88735 0-0.4778-0.39004-0.8776-0.88735-0.8776z"/>
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-    </g>
-    <g id="g1542" transform="matrix(2 0 0 2 -.41134 3.175)" fill="#676867" fill-rule="evenodd" stroke-width=".26458">
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-     <path id="path945" d="m3.3407-0.52096c0.034969-0.00777 0.038854 0.015542 0.041445 0.041445 0.098431 1.8054 0.85998 3.1744 1.8689 4.1108 1.0089 0.93639 2.3636 1.6941 4.274 1.6604-3.5772 1.4247-7.337-1.9984-6.1856-5.8126"/>
-    </g>
-   </g>
-  </g>
-  <text id="text4811" transform="matrix(.26458 0 0 .26458 -44.95 -6.55)" x="-248.88142" fill="#000000" font-family="'Fira Mono', 'Roboto Mono', monospace" font-size="12px" letter-spacing="0px" stroke-width="1px" word-spacing="0px" style="font-variant-caps:normal;font-variant-east-asian:normal;font-variant-ligatures:normal;font-variant-numeric:normal;line-height:15px;shape-inside:url(#rect4813);white-space:pre" xml:space="preserve"><tspan id="tspan10771" x="180" y="10.85">[MikroTik] 💾⬆ Backup &amp; Config upload
-</tspan><tspan id="tspan10773" x="180" y="25.85">
-</tspan><tspan id="tspan10775" x="180" y="40.85">Backup and config export upload for MikroTik.
-</tspan><tspan id="tspan10777" x="180" y="55.85">
-</tspan><tspan id="tspan10779" x="180" y="70.85">Hostname:       MikroTik
-</tspan><tspan id="tspan10781" x="180" y="85.85">Board name:     CHR
-</tspan><tspan id="tspan10783" x="180" y="100.85">Architecture:   x86_64
-</tspan><tspan id="tspan10785" x="180" y="115.85">RouterOS:
-</tspan><tspan id="tspan10787" x="180" y="130.85">    Channel:    stable
-</tspan><tspan id="tspan10789" x="180" y="145.85">    Installed:  7.4.1
-</tspan><tspan id="tspan10791" x="180" y="160.85">RouterOS-Scripts:
-</tspan><tspan id="tspan10793" x="180" y="175.85">    Version:    83
-</tspan><tspan id="tspan10795" x="180" y="190.85">
-</tspan><tspan id="tspan10797" x="180" y="205.85">Backup file:    MikroTik_example_com.backup
-</tspan><tspan id="tspan10799" x="180" y="220.85">Config file:    MikroTik_example_com.rsc</tspan></text>
- </g>
-</svg>
diff --git a/doc/backup-upload.md b/doc/backup-upload.md
index 34df1c6..ab07862 100644
--- a/doc/backup-upload.md
+++ b/doc/backup-upload.md
@@ -19,7 +19,7 @@ configuration export (`/export terse show-sensitive`) to external server.
 
 ### Sample notification
 
-![backup-upload notification](backup-upload.d/notification.svg)
+![backup-upload notification](backup-upload.d/notification.avif)
 
 Requirements and installation
 -----------------------------
diff --git a/doc/check-certificates.d/notification.avif b/doc/check-certificates.d/notification.avif
new file mode 100644
index 0000000..a458b7c
--- /dev/null
+++ b/doc/check-certificates.d/notification.avif
diff --git a/doc/check-certificates.d/notification.svg b/doc/check-certificates.d/notification.svg
deleted file mode 100644
index e1d8baa..0000000
--- a/doc/check-certificates.d/notification.svg
+++ /dev/null
@@ -1,41 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<svg id="svg8" width="683.78" height="203.78" version="1.1" viewBox="0 0 180.92 53.917" xmlns="http://www.w3.org/2000/svg" xmlns:cc="http://creativecommons.org/ns#" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
- <metadata id="metadata5">
-  <rdf:RDF>
-   <cc:Work rdf:about="">
-    <dc:format>image/svg+xml</dc:format>
-    <dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage"/>
-   </cc:Work>
-  </rdf:RDF>
- </metadata>
- <g id="layer1" transform="translate(16.375 11.083)">
-  <rect id="rect857" x="-15.875" y="-10.583" width="179.92" height="52.917" rx="2.249" fill="#e6e6e6" stroke="#6c5d53" stroke-linecap="round" stroke-linejoin="round"/>
-  <g id="g884" transform="matrix(.5 0 0 .5 -12.406 -7.1146)" stroke-width="2">
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-     <path id="path859" d="m21.281 15.592c-1.5504 0-2.5353 1.1506-2.5353 2.7986 0 1.6382 0.97511 2.7108 2.5645 2.7108 0.71183 0 1.2676-0.23403 1.7454-0.61432l-0.67282-0.9556c-0.37054 0.23403-0.62407 0.35104-0.99461 0.35104-0.61432 0-1.0239-0.35104-1.0239-1.5017 0-1.1604 0.38029-1.6089 1.0434-1.6089 0.35104 0 0.65332 0.11701 0.98486 0.37054l0.66307-0.9166c-0.4973-0.4193-1.0531-0.63382-1.7747-0.63382z"/>
-    </g>
-    <g id="g1542" transform="matrix(2 0 0 2 -.41134 3.175)" fill="#676867" fill-rule="evenodd" stroke-width=".26458">
-     <path id="path943" d="m4.9596-1.0196c0.40797 2.8312 1.9272 4.5499 5.0239 4.691-2.918 1.1164-5.9253-1.5076-5.0239-4.691"/>
-     <path id="path945" d="m3.3407-0.52096c0.034969-0.00777 0.038854 0.015542 0.041445 0.041445 0.098431 1.8054 0.85998 3.1744 1.8689 4.1108 1.0089 0.93639 2.3636 1.6941 4.274 1.6604-3.5772 1.4247-7.337-1.9984-6.1856-5.8126"/>
-    </g>
-   </g>
-  </g>
-  <text id="text4811" transform="matrix(.26458 0 0 .26458 -45.014 -6.6039)" x="-248.88142" fill="#000000" font-family="'Fira Mono', 'Roboto Mono', monospace" font-size="12px" letter-spacing="0px" stroke-width="1px" word-spacing="0px" style="font-variant-caps:normal;font-variant-east-asian:normal;font-variant-ligatures:normal;font-variant-numeric:normal;line-height:15px;shape-inside:url(#rect4813);white-space:pre" xml:space="preserve"><tspan id="tspan2179" x="180" y="10.85">[MikroTik] 🔏 Certificate renewed
-</tspan><tspan id="tspan2181" x="180" y="25.85">
-</tspan><tspan id="tspan2183" x="180" y="40.85">A certificate on MikroTik has been renewed.
-</tspan><tspan id="tspan2185" x="180" y="55.85">
-</tspan><tspan id="tspan2187" x="180" y="70.85">Name:        example.com
-</tspan><tspan id="tspan2189" x="180" y="85.85">CommonName:  example.com
-</tspan><tspan id="tspan2191" x="180" y="100.85">Private key: available
-</tspan><tspan id="tspan2193" x="180" y="115.85">Fingerprint: cc54cdd01fcd7698ecb71213874be776906eb33d26cd57754d168632f14c4c8b
-</tspan><tspan id="tspan2195" x="180" y="130.85">Issuer:      R3
-</tspan><tspan id="tspan2197" x="180" y="145.85">Validity:    may/22/2021 22:29:34 to aug/20/2021 22:29:34
-</tspan><tspan id="tspan2199" x="180" y="160.85">Expires in:  11w 5d 08:18:06</tspan></text>
- </g>
-</svg>
diff --git a/doc/check-certificates.md b/doc/check-certificates.md
index 5198e52..e8c295a 100644
--- a/doc/check-certificates.md
+++ b/doc/check-certificates.md
@@ -14,7 +14,7 @@ certificates that are still about to expire.
 
 ### Sample notification
 
-![check-certificates notification](check-certificates.d/notification.svg)
+![check-certificates notification](check-certificates.d/notification.avif)
 
 Requirements and installation
 -----------------------------
diff --git a/doc/check-health.d/notification-01-voltage.avif b/doc/check-health.d/notification-01-voltage.avif
new file mode 100644
index 0000000..f4d6005
--- /dev/null
+++ b/doc/check-health.d/notification-01-voltage.avif
diff --git a/doc/check-health.d/notification-01-voltage.svg b/doc/check-health.d/notification-01-voltage.svg
deleted file mode 100644
index 4c9caad..0000000
--- a/doc/check-health.d/notification-01-voltage.svg
+++ /dev/null
@@ -1,36 +0,0 @@
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- <metadata id="metadata5">
-  <rdf:RDF>
-   <cc:Work rdf:about="">
-    <dc:format>image/svg+xml</dc:format>
-    <dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage"/>
-   </cc:Work>
-  </rdf:RDF>
- </metadata>
- <g id="layer1" transform="translate(16.375 11.083)">
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-   </g>
-  </g>
-  <text id="text4811" transform="matrix(.26458 0 0 .26458 -45.077 -6.6039)" x="-248.88142" fill="#000000" font-family="'Fira Mono', 'Roboto Mono', monospace" font-size="12px" letter-spacing="0px" stroke-width="1px" word-spacing="0px" style="font-variant-caps:normal;font-variant-east-asian:normal;font-variant-ligatures:normal;font-variant-numeric:normal;line-height:15px;shape-inside:url(#rect4813);white-space:pre" xml:space="preserve"><tspan id="tspan13643" x="180" y="10.85">[MikroTik] ⚡📉 Health warning: voltage
-</tspan><tspan id="tspan13645" x="180" y="25.85">
-</tspan><tspan id="tspan13647" x="180" y="40.85">The voltage on MikroTik jumped more than 10%.
-</tspan><tspan id="tspan13649" x="180" y="55.85">
-</tspan><tspan id="tspan13651" x="180" y="70.85">old value: 16.2V
-</tspan><tspan id="tspan13653" x="180" y="85.85">new value: 12.4V</tspan></text>
- </g>
-</svg>
diff --git a/doc/check-health.d/notification-02-temperature-high.avif b/doc/check-health.d/notification-02-temperature-high.avif
new file mode 100644
index 0000000..1a93610
--- /dev/null
+++ b/doc/check-health.d/notification-02-temperature-high.avif
diff --git a/doc/check-health.d/notification-02-temperature-high.svg b/doc/check-health.d/notification-02-temperature-high.svg
deleted file mode 100644
index 0ab9488..0000000
--- a/doc/check-health.d/notification-02-temperature-high.svg
+++ /dev/null
@@ -1,33 +0,0 @@
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- <metadata id="metadata5">
-  <rdf:RDF>
-   <cc:Work rdf:about="">
-    <dc:format>image/svg+xml</dc:format>
-    <dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage"/>
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-     <path id="path943" d="m4.9596-1.0196c0.40797 2.8312 1.9272 4.5499 5.0239 4.691-2.918 1.1164-5.9253-1.5076-5.0239-4.691"/>
-     <path id="path945" d="m3.3407-0.52096c0.034969-0.00777 0.038854 0.015542 0.041445 0.041445 0.098431 1.8054 0.85998 3.1744 1.8689 4.1108 1.0089 0.93639 2.3636 1.6941 4.274 1.6604-3.5772 1.4247-7.337-1.9984-6.1856-5.8126"/>
-    </g>
-   </g>
-  </g>
-  <text id="text4811" transform="matrix(.26458 0 0 .26458 -45.077 -6.6039)" x="-248.88142" fill="#000000" font-family="'Fira Mono', 'Roboto Mono', monospace" font-size="12px" letter-spacing="0px" stroke-width="1px" word-spacing="0px" style="font-variant-caps:normal;font-variant-east-asian:normal;font-variant-ligatures:normal;font-variant-numeric:normal;line-height:15px;shape-inside:url(#rect4813);white-space:pre" xml:space="preserve"><tspan id="tspan13709" x="180" y="10.85">[MikroTik] 🔥 Health warning: temperature
-</tspan><tspan id="tspan13711" x="180" y="25.85">
-</tspan><tspan id="tspan13713" x="180" y="40.85">The temperature on MikroTik is above threshold: 51°C</tspan></text>
- </g>
-</svg>
diff --git a/doc/check-health.d/notification-03-temperature-ok.avif b/doc/check-health.d/notification-03-temperature-ok.avif
new file mode 100644
index 0000000..3bb9c68
--- /dev/null
+++ b/doc/check-health.d/notification-03-temperature-ok.avif
diff --git a/doc/check-health.d/notification-03-temperature-ok.svg b/doc/check-health.d/notification-03-temperature-ok.svg
deleted file mode 100644
index 180d13f..0000000
--- a/doc/check-health.d/notification-03-temperature-ok.svg
+++ /dev/null
@@ -1,33 +0,0 @@
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- <metadata id="metadata5">
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-   <cc:Work rdf:about="">
-    <dc:format>image/svg+xml</dc:format>
-    <dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage"/>
-   </cc:Work>
-  </rdf:RDF>
- </metadata>
- <g id="layer1" transform="translate(16.375 11.083)">
-  <rect id="rect857" x="-15.875" y="-10.583" width="140.23" height="21.167" rx="1.7529" fill="#e6e6e6" stroke="#6c5d53" stroke-linecap="round" stroke-linejoin="round"/>
-  <g id="g884" transform="matrix(.5 0 0 .5 -12.406 -7.1146)" stroke-width="2">
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-    </g>
-    <g id="g1542" transform="matrix(2 0 0 2 -.41134 3.175)" fill="#676867" fill-rule="evenodd" stroke-width=".26458">
-     <path id="path943" d="m4.9596-1.0196c0.40797 2.8312 1.9272 4.5499 5.0239 4.691-2.918 1.1164-5.9253-1.5076-5.0239-4.691"/>
-     <path id="path945" d="m3.3407-0.52096c0.034969-0.00777 0.038854 0.015542 0.041445 0.041445 0.098431 1.8054 0.85998 3.1744 1.8689 4.1108 1.0089 0.93639 2.3636 1.6941 4.274 1.6604-3.5772 1.4247-7.337-1.9984-6.1856-5.8126"/>
-    </g>
-   </g>
-  </g>
-  <text id="text4811" transform="matrix(.26458 0 0 .26458 -45.077 -6.6039)" x="-248.88142" fill="#000000" font-family="'Fira Mono', 'Roboto Mono', monospace" font-size="12px" letter-spacing="0px" stroke-width="1px" word-spacing="0px" style="font-variant-caps:normal;font-variant-east-asian:normal;font-variant-ligatures:normal;font-variant-numeric:normal;line-height:15px;shape-inside:url(#rect4813);white-space:pre" xml:space="preserve"><tspan id="tspan13679" x="180" y="10.85">[MikroTik] ✅ Health recovery: temperature
-</tspan><tspan id="tspan13681" x="180" y="25.85">
-</tspan><tspan id="tspan13683" x="180" y="40.85">The temperature on MikroTik dropped below threshold: 48°C</tspan></text>
- </g>
-</svg>
diff --git a/doc/check-health.d/notification-04-psu-fail.avif b/doc/check-health.d/notification-04-psu-fail.avif
new file mode 100644
index 0000000..a4e52a9
--- /dev/null
+++ b/doc/check-health.d/notification-04-psu-fail.avif
diff --git a/doc/check-health.d/notification-04-psu-fail.svg b/doc/check-health.d/notification-04-psu-fail.svg
deleted file mode 100644
index f7efe4b..0000000
--- a/doc/check-health.d/notification-04-psu-fail.svg
+++ /dev/null
@@ -1,33 +0,0 @@
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- <metadata id="metadata5">
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-    <dc:format>image/svg+xml</dc:format>
-    <dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage"/>
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- </metadata>
- <g id="layer1" transform="translate(16.375 11.083)">
-  <rect id="rect857" x="-15.875" y="-10.583" width="134.94" height="21.167" rx="1.6867" fill="#e6e6e6" stroke="#6c5d53" stroke-linecap="round" stroke-linejoin="round"/>
-  <g id="g884" transform="matrix(.5 0 0 .5 -12.406 -7.1146)" stroke-width="2">
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-    </g>
-    <g id="g1542" transform="matrix(2 0 0 2 -.41134 3.175)" fill="#676867" fill-rule="evenodd" stroke-width=".26458">
-     <path id="path943" d="m4.9596-1.0196c0.40797 2.8312 1.9272 4.5499 5.0239 4.691-2.918 1.1164-5.9253-1.5076-5.0239-4.691"/>
-     <path id="path945" d="m3.3407-0.52096c0.034969-0.00777 0.038854 0.015542 0.041445 0.041445 0.098431 1.8054 0.85998 3.1744 1.8689 4.1108 1.0089 0.93639 2.3636 1.6941 4.274 1.6604-3.5772 1.4247-7.337-1.9984-6.1856-5.8126"/>
-    </g>
-   </g>
-  </g>
-  <text id="text4811" transform="matrix(.26458 0 0 .26458 -45.077 -6.6039)" x="-248.88142" fill="#000000" font-family="'Fira Mono', 'Roboto Mono', monospace" font-size="12px" letter-spacing="0px" stroke-width="1px" word-spacing="0px" style="font-variant-caps:normal;font-variant-east-asian:normal;font-variant-ligatures:normal;font-variant-numeric:normal;line-height:15px;shape-inside:url(#rect4813);white-space:pre" xml:space="preserve"><tspan id="tspan2171" x="180" y="10.85">[MikroTik] ❌ Health warning: psu1-state
-</tspan><tspan id="tspan2173" x="180" y="25.85">
-</tspan><tspan id="tspan2175" x="180" y="40.85">The power supply unit 'psu1-state' on MikroTik failed!</tspan></text>
- </g>
-</svg>
diff --git a/doc/check-health.d/notification-05-psu-ok.avif b/doc/check-health.d/notification-05-psu-ok.avif
new file mode 100644
index 0000000..bcc5a39
--- /dev/null
+++ b/doc/check-health.d/notification-05-psu-ok.avif
diff --git a/doc/check-health.d/notification-05-psu-ok.svg b/doc/check-health.d/notification-05-psu-ok.svg
deleted file mode 100644
index 0a3f05c..0000000
--- a/doc/check-health.d/notification-05-psu-ok.svg
+++ /dev/null
@@ -1,33 +0,0 @@
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-  </rdf:RDF>
- </metadata>
- <g id="layer1" transform="translate(16.375 11.083)">
-  <rect id="rect857" x="-15.875" y="-10.583" width="140.23" height="21.167" rx="1.7529" fill="#e6e6e6" stroke="#6c5d53" stroke-linecap="round" stroke-linejoin="round"/>
-  <g id="g884" transform="matrix(.5 0 0 .5 -12.406 -7.1146)" stroke-width="2">
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-    </g>
-    <g id="g1542" transform="matrix(2 0 0 2 -.41134 3.175)" fill="#676867" fill-rule="evenodd" stroke-width=".26458">
-     <path id="path943" d="m4.9596-1.0196c0.40797 2.8312 1.9272 4.5499 5.0239 4.691-2.918 1.1164-5.9253-1.5076-5.0239-4.691"/>
-     <path id="path945" d="m3.3407-0.52096c0.034969-0.00777 0.038854 0.015542 0.041445 0.041445 0.098431 1.8054 0.85998 3.1744 1.8689 4.1108 1.0089 0.93639 2.3636 1.6941 4.274 1.6604-3.5772 1.4247-7.337-1.9984-6.1856-5.8126"/>
-    </g>
-   </g>
-  </g>
-  <text id="text4811" transform="matrix(.26458 0 0 .26458 -45.077 -6.6039)" x="-248.88142" fill="#000000" font-family="'Fira Mono', 'Roboto Mono', monospace" font-size="12px" letter-spacing="0px" stroke-width="1px" word-spacing="0px" style="font-variant-caps:normal;font-variant-east-asian:normal;font-variant-ligatures:normal;font-variant-numeric:normal;line-height:15px;shape-inside:url(#rect4813);white-space:pre" xml:space="preserve"><tspan id="tspan13739" x="180" y="10.85">[MikroTik] ✅ Health recovery: psu1-state
-</tspan><tspan id="tspan13741" x="180" y="25.85">
-</tspan><tspan id="tspan13743" x="180" y="40.85">The power supply unit 'psu1-state' on MikroTik recovered!</tspan></text>
- </g>
-</svg>
diff --git a/doc/check-health.md b/doc/check-health.md
index 9ee16bb..d84693a 100644
--- a/doc/check-health.md
+++ b/doc/check-health.md
@@ -27,17 +27,17 @@ hardware supports:
 
 #### Voltage
 
-![check-health notification voltage](check-health.d/notification-01-voltage.svg)
+![check-health notification voltage](check-health.d/notification-01-voltage.avif)
 
 #### Temperature
 
-![check-health notification](check-health.d/notification-02-temperature-high.svg)  
-![check-health notification](check-health.d/notification-03-temperature-ok.svg)
+![check-health notification](check-health.d/notification-02-temperature-high.avif)  
+![check-health notification](check-health.d/notification-03-temperature-ok.avif)
 
 #### PSU state
 
-![check-health notification](check-health.d/notification-04-psu-fail.svg)  
-![check-health notification](check-health.d/notification-05-psu-ok.svg)
+![check-health notification](check-health.d/notification-04-psu-fail.avif)  
+![check-health notification](check-health.d/notification-05-psu-ok.avif)
 
 Requirements and installation
 -----------------------------
diff --git a/doc/check-lte-firmware-upgrade.d/notification.avif b/doc/check-lte-firmware-upgrade.d/notification.avif
new file mode 100644
index 0000000..4e28c36
--- /dev/null
+++ b/doc/check-lte-firmware-upgrade.d/notification.avif
diff --git a/doc/check-lte-firmware-upgrade.d/notification.svg b/doc/check-lte-firmware-upgrade.d/notification.svg
deleted file mode 100644
index 5992462..0000000
--- a/doc/check-lte-firmware-upgrade.d/notification.svg
+++ /dev/null
@@ -1,38 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
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- <metadata id="metadata5">
-  <rdf:RDF>
-   <cc:Work rdf:about="">
-    <dc:format>image/svg+xml</dc:format>
-    <dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage"/>
-   </cc:Work>
-  </rdf:RDF>
- </metadata>
- <g id="layer1" transform="translate(16.375 11.083)">
-  <rect id="rect857" x="-15.875" y="-10.583" width="127" height="39.687" rx="1.5875" fill="#e6e6e6" stroke="#6c5d53" stroke-linecap="round" stroke-linejoin="round"/>
-  <g id="g884" transform="matrix(.5 0 0 .5 -12.406 -7.1146)" stroke-width="2">
-   <path id="path899" d="m23.177 23.177c-2.9635 2.9635-17.991 2.9635-20.955 0-2.9635-2.9635-2.9635-17.991 0-20.955 2.9635-2.9635 17.991-2.9635 20.955 0 2.9635 2.9635 2.9635 17.991 0 20.955z" fill="#fff"/>
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-    <g id="text837" stroke-width=".52916px" aria-label="#!rsc">
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-     <path id="path859" d="m21.281 15.592c-1.5504 0-2.5353 1.1506-2.5353 2.7986 0 1.6382 0.97511 2.7108 2.5645 2.7108 0.71183 0 1.2676-0.23403 1.7454-0.61432l-0.67282-0.9556c-0.37054 0.23403-0.62407 0.35104-0.99461 0.35104-0.61432 0-1.0239-0.35104-1.0239-1.5017 0-1.1604 0.38029-1.6089 1.0434-1.6089 0.35104 0 0.65332 0.11701 0.98486 0.37054l0.66307-0.9166c-0.4973-0.4193-1.0531-0.63382-1.7747-0.63382z"/>
-    </g>
-    <g id="g1542" transform="matrix(2 0 0 2 -.41134 3.175)" fill="#676867" fill-rule="evenodd" stroke-width=".26458">
-     <path id="path943" d="m4.9596-1.0196c0.40797 2.8312 1.9272 4.5499 5.0239 4.691-2.918 1.1164-5.9253-1.5076-5.0239-4.691"/>
-     <path id="path945" d="m3.3407-0.52096c0.034969-0.00777 0.038854 0.015542 0.041445 0.041445 0.098431 1.8054 0.85998 3.1744 1.8689 4.1108 1.0089 0.93639 2.3636 1.6941 4.274 1.6604-3.5772 1.4247-7.337-1.9984-6.1856-5.8126"/>
-    </g>
-   </g>
-  </g>
-  <text id="text4811" transform="matrix(.26458 0 0 .26458 -45.014 -6.6039)" x="-248.88142" fill="#000000" font-family="'Fira Mono', 'Roboto Mono', monospace" font-size="12px" letter-spacing="0px" stroke-width="1px" word-spacing="0px" style="font-variant-caps:normal;font-variant-east-asian:normal;font-variant-ligatures:normal;font-variant-numeric:normal;line-height:15px;shape-inside:url(#rect4813);white-space:pre" xml:space="preserve"><tspan id="tspan13600" x="180" y="10.85">[MikroTik] ✨ LTE firmware upgrade
-</tspan><tspan id="tspan13602" x="180" y="25.85">
-</tspan><tspan id="tspan13604" x="180" y="40.85">A new firmware version R11e-LTE6_V033 is available
-</tspan><tspan id="tspan13606" x="180" y="55.85">for LTE interface lte on MikroTik.
-</tspan><tspan id="tspan13608" x="180" y="70.85">
-</tspan><tspan id="tspan13610" x="180" y="85.85">Interface: MikroTik R11e-LTE6
-</tspan><tspan id="tspan13612" x="180" y="100.85">Installed: R11e-LTE6_V027
-</tspan><tspan id="tspan13614" x="180" y="115.85">Available: R11e-LTE6_V033</tspan></text>
- </g>
-</svg>
diff --git a/doc/check-lte-firmware-upgrade.md b/doc/check-lte-firmware-upgrade.md
index f3b3bfc..8443ea0 100644
--- a/doc/check-lte-firmware-upgrade.md
+++ b/doc/check-lte-firmware-upgrade.md
@@ -19,7 +19,7 @@ upgrades. Currently supported LTE hardware:
 
 ### Sample notification
 
-![check-lte-firmware-upgrade notification](check-lte-firmware-upgrade.d/notification.svg)
+![check-lte-firmware-upgrade notification](check-lte-firmware-upgrade.d/notification.avif)
 
 Requirements and installation
 -----------------------------
diff --git a/doc/check-routeros-update.d/notification.avif b/doc/check-routeros-update.d/notification.avif
new file mode 100644
index 0000000..517ebeb
--- /dev/null
+++ b/doc/check-routeros-update.d/notification.avif
diff --git a/doc/check-routeros-update.d/notification.svg b/doc/check-routeros-update.d/notification.svg
deleted file mode 100644
index d4dbc43..0000000
--- a/doc/check-routeros-update.d/notification.svg
+++ /dev/null
@@ -1,45 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<svg id="svg8" width="523.78" height="253.78" version="1.1" viewBox="0 0 138.58 67.146" xmlns="http://www.w3.org/2000/svg" xmlns:cc="http://creativecommons.org/ns#" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
- <metadata id="metadata5">
-  <rdf:RDF>
-   <cc:Work rdf:about="">
-    <dc:format>image/svg+xml</dc:format>
-    <dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage"/>
-   </cc:Work>
-  </rdf:RDF>
- </metadata>
- <g id="layer1" transform="translate(16.375 11.083)">
-  <rect id="rect857" x="-15.875" y="-10.583" width="137.58" height="66.146" rx="1.7198" fill="#e6e6e6" stroke="#6c5d53" stroke-linecap="round" stroke-linejoin="round"/>
-  <g id="g884" transform="matrix(.5 0 0 .5 -12.406 -7.1146)" stroke-width="2">
-   <path id="path899" d="m23.177 23.177c-2.9635 2.9635-17.991 2.9635-20.955 0-2.9635-2.9635-2.9635-17.991 0-20.955 2.9635-2.9635 17.991-2.9635 20.955 0 2.9635 2.9635 2.9635 17.991 0 20.955z" fill="#fff"/>
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-    </g>
-    <g id="g1542" transform="matrix(2 0 0 2 -.41134 3.175)" fill="#676867" fill-rule="evenodd" stroke-width=".26458">
-     <path id="path943" d="m4.9596-1.0196c0.40797 2.8312 1.9272 4.5499 5.0239 4.691-2.918 1.1164-5.9253-1.5076-5.0239-4.691"/>
-     <path id="path945" d="m3.3407-0.52096c0.034969-0.00777 0.038854 0.015542 0.041445 0.041445 0.098431 1.8054 0.85998 3.1744 1.8689 4.1108 1.0089 0.93639 2.3636 1.6941 4.274 1.6604-3.5772 1.4247-7.337-1.9984-6.1856-5.8126"/>
-    </g>
-   </g>
-  </g>
-  <text id="text4811" transform="matrix(.26458 0 0 .26458 -44.95 -6.6039)" x="-248.88142" fill="#000000" font-family="'Fira Mono', 'Roboto Mono', monospace" font-size="12px" letter-spacing="0px" stroke-width="1px" word-spacing="0px" style="font-variant-caps:normal;font-variant-east-asian:normal;font-variant-ligatures:normal;font-variant-numeric:normal;line-height:15px;shape-inside:url(#rect4813);white-space:pre" xml:space="preserve"><tspan id="tspan13541" x="180" y="10.85">[MikroTik] ✨ RouterOS update
-</tspan><tspan id="tspan13543" x="180" y="25.85">
-</tspan><tspan id="tspan13545" x="180" y="40.85">A new RouterOS version 7.4.1 is available for MikroTik.
-</tspan><tspan id="tspan13547" x="180" y="55.85">
-</tspan><tspan id="tspan13549" x="180" y="70.85">Hostname:       MikroTik
-</tspan><tspan id="tspan13551" x="180" y="85.85">Board name:     CHR
-</tspan><tspan id="tspan13553" x="180" y="100.85">Architecture:   x86_64
-</tspan><tspan id="tspan13555" x="180" y="115.85">RouterOS:
-</tspan><tspan id="tspan13557" x="180" y="130.85">    Channel:    stable
-</tspan><tspan id="tspan13559" x="180" y="145.85">    Installed:  7.3.1
-</tspan><tspan id="tspan13561" x="180" y="160.85">    Available:  7.4.1
-</tspan><tspan id="tspan13563" x="180" y="175.85">RouterOS-Scripts:
-</tspan><tspan id="tspan13565" x="180" y="190.85">    Version:    83</tspan></text>
-  <text id="text6580" transform="translate(-59.247 -209.41)" fill="#000000" font-family="sans-serif" font-size="3.175px" letter-spacing="0px" stroke-width="1px" word-spacing="0px" style="font-variant-caps:normal;font-variant-east-asian:normal;font-variant-ligatures:normal;font-variant-numeric:normal;line-height:3.96875px;shape-inside:url(#rect6582);white-space:pre" xml:space="preserve"><tspan id="tspan13567" x="61.890625" y="254.76135">
-</tspan><tspan id="tspan13569" x="61.890625" y="258.7301">🔗 https://mikrotik.com/download/changelogs/stable-release-tree</tspan></text>
- </g>
-</svg>
diff --git a/doc/check-routeros-update.md b/doc/check-routeros-update.md
index edffcbb..735fc5a 100644
--- a/doc/check-routeros-update.md
+++ b/doc/check-routeros-update.md
@@ -30,7 +30,7 @@ automatically is supported.
 
 ### Sample notification
 
-![check-routeros-update notification](check-routeros-update.d/notification.svg)
+![check-routeros-update notification](check-routeros-update.d/notification.avif)
 
 Requirements and installation
 -----------------------------
diff --git a/doc/collect-wireless-mac.d/notification.avif b/doc/collect-wireless-mac.d/notification.avif
new file mode 100644
index 0000000..33fa9cb
--- /dev/null
+++ b/doc/collect-wireless-mac.d/notification.avif
diff --git a/doc/collect-wireless-mac.d/notification.svg b/doc/collect-wireless-mac.d/notification.svg
deleted file mode 100644
index aae8cc5..0000000
--- a/doc/collect-wireless-mac.d/notification.svg
+++ /dev/null
@@ -1,44 +0,0 @@
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-  <rdf:RDF>
-   <cc:Work rdf:about="">
-    <dc:format>image/svg+xml</dc:format>
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-   </g>
-  </g>
-  <text id="text4811" transform="matrix(.26458 0 0 .26458 -45.014 -6.6039)" x="-248.88142" fill="#000000" font-family="'Fira Mono', 'Roboto Mono', monospace" font-size="12px" letter-spacing="0px" stroke-width="1px" word-spacing="0px" style="font-variant-caps:normal;font-variant-east-asian:normal;font-variant-ligatures:normal;font-variant-numeric:normal;line-height:15px;shape-inside:url(#rect4813);white-space:pre" xml:space="preserve"><tspan id="tspan13404" x="180" y="10.85">[MikroTik] 📱 48:F1:7F:D0:E5:4E connected to Wifi
-</tspan><tspan id="tspan13406" x="180" y="25.85">
-</tspan><tspan id="tspan13408" x="180" y="40.85">A device with unknown MAC address connected to Wifi
-</tspan><tspan id="tspan13410" x="180" y="55.85">on MikroTik.
-</tspan><tspan id="tspan13412" x="180" y="70.85">
-</tspan><tspan id="tspan13414" x="180" y="85.85">Controller: MikroTik
-</tspan><tspan id="tspan13416" x="180" y="100.85">Interface:  wl5-wifi
-</tspan><tspan id="tspan13418" x="180" y="115.85">SSID:       Wifi
-</tspan><tspan id="tspan13420" x="180" y="130.85">MAC:        48:F1:7F:D0:E5:4E
-</tspan><tspan id="tspan13422" x="180" y="145.85">Vendor:     Intel Corporate
-</tspan><tspan id="tspan13424" x="180" y="160.85">Hostname:   host-523c8e0e
-</tspan><tspan id="tspan13426" x="180" y="175.85">Address:    192.168.20.254
-</tspan><tspan id="tspan13428" x="180" y="190.85">DNS name:   host-523c8e0e.dhcp.MikroTik.example.com
-</tspan><tspan id="tspan13430" x="180" y="205.85">Date:       jun/15/2021 09:21:56</tspan></text>
- </g>
-</svg>
diff --git a/doc/collect-wireless-mac.md b/doc/collect-wireless-mac.md
index e6ef990..f5c8a5c 100644
--- a/doc/collect-wireless-mac.md
+++ b/doc/collect-wireless-mac.md
@@ -17,7 +17,7 @@ and modify it to your needs.
 
 ### Sample notification
 
-![collect-wireless-mac notification](collect-wireless-mac.d/notification.svg)
+![collect-wireless-mac notification](collect-wireless-mac.d/notification.avif)
 
 Requirements and installation
 -----------------------------
diff --git a/doc/daily-psk.d/notification.avif b/doc/daily-psk.d/notification.avif
new file mode 100644
index 0000000..b713728
--- /dev/null
+++ b/doc/daily-psk.d/notification.avif
diff --git a/doc/daily-psk.d/notification.svg b/doc/daily-psk.d/notification.svg
deleted file mode 100644
index 77cf955..0000000
--- a/doc/daily-psk.d/notification.svg
+++ /dev/null
@@ -1,40 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<svg id="svg8" width="443.78" height="213.78" version="1.1" viewBox="0 0 117.42 56.562" xmlns="http://www.w3.org/2000/svg" xmlns:cc="http://creativecommons.org/ns#" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
- <metadata id="metadata5">
-  <rdf:RDF>
-   <cc:Work rdf:about="">
-    <dc:format>image/svg+xml</dc:format>
-    <dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage"/>
-   </cc:Work>
-  </rdf:RDF>
- </metadata>
- <g id="layer1" transform="translate(16.375 11.083)">
-  <rect id="rect857" x="-15.875" y="-10.583" width="116.42" height="55.562" rx="1.4552" fill="#e6e6e6" stroke="#6c5d53" stroke-linecap="round" stroke-linejoin="round"/>
-  <g id="g884" transform="matrix(.5 0 0 .5 -12.406 -7.1146)" stroke-width="2">
-   <path id="path899" d="m23.177 23.177c-2.9635 2.9635-17.991 2.9635-20.955 0-2.9635-2.9635-2.9635-17.991 0-20.955 2.9635-2.9635 17.991-2.9635 20.955 0 2.9635 2.9635 2.9635 17.991 0 20.955z" fill="#fff"/>
-   <g id="g871">
-    <g id="text837" stroke-width=".52916px" aria-label="#!rsc">
-     <path id="path851" d="m7.4832 16.646v-1.0239h-0.54606l0.16577-1.2774h-1.2774l-0.16577 1.2774h-0.97511l0.16577-1.2774h-1.2774l-0.16577 1.2774h-0.70208v1.0239h0.56556l-0.24378 1.8722h-0.68257v1.0239h0.54606l-0.18527 1.3944h1.2774l0.18527-1.3944h0.97511l-0.18527 1.3944h1.2774l0.18527-1.3944h0.70208v-1.0239h-0.56556l0.24378-1.8722zm-2.2037 1.8722h-0.97511l0.24378-1.8722h0.97511z"/>
-     <path id="path853" d="m9.6187 14.179h-1.6382l0.19502 4.271h1.2481zm-0.81909 5.1583c-0.48755 0-0.8776 0.39979-0.8776 0.8776 0 0.48755 0.39004 0.88735 0.8776 0.88735 0.4973 0 0.88735-0.39979 0.88735-0.88735 0-0.4778-0.39004-0.8776-0.88735-0.8776z"/>
-     <path id="path855" d="m13.373 15.612c-0.59482 0-1.1019 0.42905-1.3359 1.1506l-0.13652-1.0044h-1.3359v5.1778h1.5407v-2.6035c0.17552-0.77033 0.4388-1.2286 1.0726-1.2286 0.16577 0 0.30228 0.02925 0.46805 0.06826l0.24378-1.4919c-0.17552-0.04875-0.32178-0.06826-0.51681-0.06826z"/>
-     <path id="path857" d="m16.181 15.592c-1.3066 0-2.116 0.69233-2.116 1.5797 0 0.79959 0.50706 1.3261 1.5309 1.6187 0.9361 0.26328 1.0921 0.37054 1.0921 0.72158 0 0.31203-0.28278 0.48755-0.75083 0.48755-0.50706 0-0.98486-0.20477-1.3749-0.50706l-0.75083 0.83859c0.50706 0.4583 1.2676 0.77033 2.1647 0.77033 1.2871 0 2.3012-0.63382 2.3012-1.7064 0-0.92635-0.57531-1.3554-1.5992-1.6479-0.92635-0.27303-1.0629-0.39004-1.0629-0.66307 0-0.23402 0.20477-0.39004 0.62407-0.39004 0.44855 0 0.8776 0.14627 1.2774 0.39979l0.56556-0.86784c-0.4778-0.39004-1.1506-0.63382-1.9015-0.63382z"/>
-     <path id="path859" d="m21.281 15.592c-1.5504 0-2.5353 1.1506-2.5353 2.7986 0 1.6382 0.97511 2.7108 2.5645 2.7108 0.71183 0 1.2676-0.23403 1.7454-0.61432l-0.67282-0.9556c-0.37054 0.23403-0.62407 0.35104-0.99461 0.35104-0.61432 0-1.0239-0.35104-1.0239-1.5017 0-1.1604 0.38029-1.6089 1.0434-1.6089 0.35104 0 0.65332 0.11701 0.98486 0.37054l0.66307-0.9166c-0.4973-0.4193-1.0531-0.63382-1.7747-0.63382z"/>
-    </g>
-    <g id="g1542" transform="matrix(2 0 0 2 -.41134 3.175)" fill="#676867" fill-rule="evenodd" stroke-width=".26458">
-     <path id="path943" d="m4.9596-1.0196c0.40797 2.8312 1.9272 4.5499 5.0239 4.691-2.918 1.1164-5.9253-1.5076-5.0239-4.691"/>
-     <path id="path945" d="m3.3407-0.52096c0.034969-0.00777 0.038854 0.015542 0.041445 0.041445 0.098431 1.8054 0.85998 3.1744 1.8689 4.1108 1.0089 0.93639 2.3636 1.6941 4.274 1.6604-3.5772 1.4247-7.337-1.9984-6.1856-5.8126"/>
-    </g>
-   </g>
-  </g>
-  <text id="text4811" transform="matrix(.26458 0 0 .26458 -45.014 -6.6039)" x="-248.88142" fill="#000000" font-family="'Fira Mono', 'Roboto Mono', monospace" font-size="12px" letter-spacing="0px" stroke-width="1px" word-spacing="0px" style="font-variant-caps:normal;font-variant-east-asian:normal;font-variant-ligatures:normal;font-variant-numeric:normal;line-height:15px;shape-inside:url(#rect4813);white-space:pre" xml:space="preserve"><tspan id="tspan13351" x="180" y="10.85">[MikroTik] 📅 daily PSK Guest-Wifi
-</tspan><tspan id="tspan13353" x="180" y="25.85">
-</tspan><tspan id="tspan13355" x="180" y="40.85">This is the daily PSK on MikroTik:
-</tspan><tspan id="tspan13357" x="180" y="55.85">
-</tspan><tspan id="tspan13359" x="180" y="70.85">SSID: Guest-Wifi
-</tspan><tspan id="tspan13361" x="180" y="85.85">PSK:  S3cr3tStr1ng
-</tspan><tspan id="tspan13363" x="180" y="100.85">Date: jun/17/2021
-</tspan><tspan id="tspan13365" x="180" y="115.85">
-</tspan><tspan id="tspan13367" x="180" y="130.85">A client device specific rule must not exist!</tspan></text>
-  <text id="text8530" x="2.6538308" y="34.683964" fill="#000000" font-family="sans-serif" font-size="3.175px" letter-spacing="0px" stroke-width="1px" word-spacing="0px" style="font-variant-caps:normal;font-variant-east-asian:normal;font-variant-ligatures:normal;font-variant-numeric:normal;line-height:2.38125px" xml:space="preserve"><tspan id="tspan25760" x="2.6538308" y="34.683964" style="font-variant-caps:normal;font-variant-east-asian:normal;font-variant-ligatures:normal;font-variant-numeric:normal">🔗 https://www.eworm.de/cgi-bin/cqrlogo-wifi.cgi?</tspan><tspan id="tspan25762" x="2.6538308" y="39.528858" style="font-variant-caps:normal;font-variant-east-asian:normal;font-variant-ligatures:normal;font-variant-numeric:normal">scale=8&amp;level=1&amp;ssid=Guest-Wifi&amp;pass=S3cr3tStr1ng</tspan></text>
- </g>
-</svg>
diff --git a/doc/daily-psk.md b/doc/daily-psk.md
index 62c26ee..67f0212 100644
--- a/doc/daily-psk.md
+++ b/doc/daily-psk.md
@@ -14,7 +14,7 @@ passphrase to a pseudo-random string daily.
 
 ### Sample notification
 
-![daily-psk notification](daily-psk.d/notification.svg)
+![daily-psk notification](daily-psk.d/notification.avif)
 
 Requirements and installation
 -----------------------------
diff --git a/doc/log-forward.d/notification.avif b/doc/log-forward.d/notification.avif
new file mode 100644
index 0000000..d332ca5
--- /dev/null
+++ b/doc/log-forward.d/notification.avif
diff --git a/doc/log-forward.d/notification.svg b/doc/log-forward.d/notification.svg
deleted file mode 100644
index 9527411..0000000
--- a/doc/log-forward.d/notification.svg
+++ /dev/null
@@ -1,37 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<svg id="svg8" width="573.78" height="203.78" version="1.1" viewBox="0 0 151.81 53.917" xmlns="http://www.w3.org/2000/svg" xmlns:cc="http://creativecommons.org/ns#" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
- <metadata id="metadata5">
-  <rdf:RDF>
-   <cc:Work rdf:about="">
-    <dc:format>image/svg+xml</dc:format>
-    <dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage"/>
-   </cc:Work>
-  </rdf:RDF>
- </metadata>
- <g id="layer1" transform="translate(16.375 11.083)">
-  <rect id="rect857" x="-15.875" y="-10.583" width="150.81" height="52.917" rx="1.8852" fill="#e6e6e6" stroke="#6c5d53" stroke-linecap="round" stroke-linejoin="round"/>
-  <g id="g884" transform="matrix(.5 0 0 .5 -12.406 -7.1146)" stroke-width="2">
-   <path id="path899" d="m23.177 23.177c-2.9635 2.9635-17.991 2.9635-20.955 0-2.9635-2.9635-2.9635-17.991 0-20.955 2.9635-2.9635 17.991-2.9635 20.955 0 2.9635 2.9635 2.9635 17.991 0 20.955z" fill="#fff"/>
-   <g id="g871">
-    <g id="text837" stroke-width=".52916px" aria-label="#!rsc">
-     <path id="path851" d="m7.4832 16.646v-1.0239h-0.54606l0.16577-1.2774h-1.2774l-0.16577 1.2774h-0.97511l0.16577-1.2774h-1.2774l-0.16577 1.2774h-0.70208v1.0239h0.56556l-0.24378 1.8722h-0.68257v1.0239h0.54606l-0.18527 1.3944h1.2774l0.18527-1.3944h0.97511l-0.18527 1.3944h1.2774l0.18527-1.3944h0.70208v-1.0239h-0.56556l0.24378-1.8722zm-2.2037 1.8722h-0.97511l0.24378-1.8722h0.97511z"/>
-     <path id="path853" d="m9.6187 14.179h-1.6382l0.19502 4.271h1.2481zm-0.81909 5.1583c-0.48755 0-0.8776 0.39979-0.8776 0.8776 0 0.48755 0.39004 0.88735 0.8776 0.88735 0.4973 0 0.88735-0.39979 0.88735-0.88735 0-0.4778-0.39004-0.8776-0.88735-0.8776z"/>
-     <path id="path855" d="m13.373 15.612c-0.59482 0-1.1019 0.42905-1.3359 1.1506l-0.13652-1.0044h-1.3359v5.1778h1.5407v-2.6035c0.17552-0.77033 0.4388-1.2286 1.0726-1.2286 0.16577 0 0.30228 0.02925 0.46805 0.06826l0.24378-1.4919c-0.17552-0.04875-0.32178-0.06826-0.51681-0.06826z"/>
-     <path id="path857" d="m16.181 15.592c-1.3066 0-2.116 0.69233-2.116 1.5797 0 0.79959 0.50706 1.3261 1.5309 1.6187 0.9361 0.26328 1.0921 0.37054 1.0921 0.72158 0 0.31203-0.28278 0.48755-0.75083 0.48755-0.50706 0-0.98486-0.20477-1.3749-0.50706l-0.75083 0.83859c0.50706 0.4583 1.2676 0.77033 2.1647 0.77033 1.2871 0 2.3012-0.63382 2.3012-1.7064 0-0.92635-0.57531-1.3554-1.5992-1.6479-0.92635-0.27303-1.0629-0.39004-1.0629-0.66307 0-0.23402 0.20477-0.39004 0.62407-0.39004 0.44855 0 0.8776 0.14627 1.2774 0.39979l0.56556-0.86784c-0.4778-0.39004-1.1506-0.63382-1.9015-0.63382z"/>
-     <path id="path859" d="m21.281 15.592c-1.5504 0-2.5353 1.1506-2.5353 2.7986 0 1.6382 0.97511 2.7108 2.5645 2.7108 0.71183 0 1.2676-0.23403 1.7454-0.61432l-0.67282-0.9556c-0.37054 0.23403-0.62407 0.35104-0.99461 0.35104-0.61432 0-1.0239-0.35104-1.0239-1.5017 0-1.1604 0.38029-1.6089 1.0434-1.6089 0.35104 0 0.65332 0.11701 0.98486 0.37054l0.66307-0.9166c-0.4973-0.4193-1.0531-0.63382-1.7747-0.63382z"/>
-    </g>
-    <g id="g1542" transform="matrix(2 0 0 2 -.41134 3.175)" fill="#676867" fill-rule="evenodd" stroke-width=".26458">
-     <path id="path943" d="m4.9596-1.0196c0.40797 2.8312 1.9272 4.5499 5.0239 4.691-2.918 1.1164-5.9253-1.5076-5.0239-4.691"/>
-     <path id="path945" d="m3.3407-0.52096c0.034969-0.00777 0.038854 0.015542 0.041445 0.041445 0.098431 1.8054 0.85998 3.1744 1.8689 4.1108 1.0089 0.93639 2.3636 1.6941 4.274 1.6604-3.5772 1.4247-7.337-1.9984-6.1856-5.8126"/>
-    </g>
-   </g>
-  </g>
-  <text id="text4811" transform="matrix(.26458 0 0 .26458 -44.95 -6.6039)" x="-248.88142" fill="#000000" font-family="'Fira Mono', 'Roboto Mono', monospace" font-size="12px" letter-spacing="0px" stroke-width="1px" word-spacing="0px" style="font-variant-caps:normal;font-variant-east-asian:normal;font-variant-ligatures:normal;font-variant-numeric:normal;line-height:15px;shape-inside:url(#rect4813);white-space:pre" xml:space="preserve"><tspan id="tspan2317" x="180" y="10.85">[MikroTik] ⚠ Log Forwarding
-</tspan><tspan id="tspan2319" x="180" y="26.082813">
-</tspan><tspan id="tspan2321" x="180" y="41.082813">The log on MikroTik contains these 3 messages after 6d23:55:18 </tspan><tspan id="tspan2323" x="180" y="56.082811">uptime.
-</tspan><tspan id="tspan2325" x="180" y="71.082811">
-</tspan><tspan id="tspan2327" x="180" y="86.082811"> ● 13:24:02 script;error backup-cloud: Failed uploading backup </tspan><tspan id="tspan2329" x="180" y="101.08281">for MikroTik to cloud!
-</tspan><tspan id="tspan2331" x="180" y="116.08281"> ● 13:24:17 system;info;account user admin logged in from </tspan><tspan id="tspan2333" x="180" y="131.08281">192.168.88.177 via ssh
-</tspan><tspan id="tspan2335" x="180" y="146.08282"> ● 13:24:57 system;info;account user admin logged out from </tspan><tspan id="tspan2337" x="180" y="161.08282">192.168.88.177 via ssh</tspan></text>
- </g>
-</svg>
diff --git a/doc/log-forward.md b/doc/log-forward.md
index 40a4135..649298a 100644
--- a/doc/log-forward.md
+++ b/doc/log-forward.md
@@ -22,7 +22,7 @@ and forwards them via notification.
 
 ### Sample notification
 
-![log-forward notification](log-forward.d/notification.svg)
+![log-forward notification](log-forward.d/notification.avif)
 
 Requirements and installation
 -----------------------------
diff --git a/doc/netwatch-notify.d/notification-01-down.avif b/doc/netwatch-notify.d/notification-01-down.avif
new file mode 100644
index 0000000..d050e60
--- /dev/null
+++ b/doc/netwatch-notify.d/notification-01-down.avif
diff --git a/doc/netwatch-notify.d/notification-01-down.svg b/doc/netwatch-notify.d/notification-01-down.svg
deleted file mode 100644
index 13988a3..0000000
--- a/doc/netwatch-notify.d/notification-01-down.svg
+++ /dev/null
@@ -1,34 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<svg id="svg8" width="463.78" height="93.78" version="1.1" viewBox="0 0 122.71 24.812" xmlns="http://www.w3.org/2000/svg" xmlns:cc="http://creativecommons.org/ns#" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
- <metadata id="metadata5">
-  <rdf:RDF>
-   <cc:Work rdf:about="">
-    <dc:format>image/svg+xml</dc:format>
-    <dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage"/>
-   </cc:Work>
-  </rdf:RDF>
- </metadata>
- <g id="layer1" transform="translate(16.375 11.083)">
-  <rect id="rect857" x="-15.875" y="-10.583" width="121.71" height="23.812" rx="1.5214" fill="#e6e6e6" stroke="#6c5d53" stroke-linecap="round" stroke-linejoin="round"/>
-  <g id="g884" transform="matrix(.5 0 0 .5 -12.406 -7.1146)" stroke-width="2">
-   <path id="path899" d="m23.177 23.177c-2.9635 2.9635-17.991 2.9635-20.955 0-2.9635-2.9635-2.9635-17.991 0-20.955 2.9635-2.9635 17.991-2.9635 20.955 0 2.9635 2.9635 2.9635 17.991 0 20.955z" fill="#fff"/>
-   <g id="g871">
-    <g id="text837" stroke-width=".52916px" aria-label="#!rsc">
-     <path id="path851" d="m7.4832 16.646v-1.0239h-0.54606l0.16577-1.2774h-1.2774l-0.16577 1.2774h-0.97511l0.16577-1.2774h-1.2774l-0.16577 1.2774h-0.70208v1.0239h0.56556l-0.24378 1.8722h-0.68257v1.0239h0.54606l-0.18527 1.3944h1.2774l0.18527-1.3944h0.97511l-0.18527 1.3944h1.2774l0.18527-1.3944h0.70208v-1.0239h-0.56556l0.24378-1.8722zm-2.2037 1.8722h-0.97511l0.24378-1.8722h0.97511z"/>
-     <path id="path853" d="m9.6187 14.179h-1.6382l0.19502 4.271h1.2481zm-0.81909 5.1583c-0.48755 0-0.8776 0.39979-0.8776 0.8776 0 0.48755 0.39004 0.88735 0.8776 0.88735 0.4973 0 0.88735-0.39979 0.88735-0.88735 0-0.4778-0.39004-0.8776-0.88735-0.8776z"/>
-     <path id="path855" d="m13.373 15.612c-0.59482 0-1.1019 0.42905-1.3359 1.1506l-0.13652-1.0044h-1.3359v5.1778h1.5407v-2.6035c0.17552-0.77033 0.4388-1.2286 1.0726-1.2286 0.16577 0 0.30228 0.02925 0.46805 0.06826l0.24378-1.4919c-0.17552-0.04875-0.32178-0.06826-0.51681-0.06826z"/>
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-     <path id="path859" d="m21.281 15.592c-1.5504 0-2.5353 1.1506-2.5353 2.7986 0 1.6382 0.97511 2.7108 2.5645 2.7108 0.71183 0 1.2676-0.23403 1.7454-0.61432l-0.67282-0.9556c-0.37054 0.23403-0.62407 0.35104-0.99461 0.35104-0.61432 0-1.0239-0.35104-1.0239-1.5017 0-1.1604 0.38029-1.6089 1.0434-1.6089 0.35104 0 0.65332 0.11701 0.98486 0.37054l0.66307-0.9166c-0.4973-0.4193-1.0531-0.63382-1.7747-0.63382z"/>
-    </g>
-    <g id="g1542" transform="matrix(2 0 0 2 -.41134 3.175)" fill="#676867" fill-rule="evenodd" stroke-width=".26458">
-     <path id="path943" d="m4.9596-1.0196c0.40797 2.8312 1.9272 4.5499 5.0239 4.691-2.918 1.1164-5.9253-1.5076-5.0239-4.691"/>
-     <path id="path945" d="m3.3407-0.52096c0.034969-0.00777 0.038854 0.015542 0.041445 0.041445 0.098431 1.8054 0.85998 3.1744 1.8689 4.1108 1.0089 0.93639 2.3636 1.6941 4.274 1.6604-3.5772 1.4247-7.337-1.9984-6.1856-5.8126"/>
-    </g>
-   </g>
-  </g>
-  <text id="text4811" transform="matrix(.26458 0 0 .26458 -45.214 -6.6039)" x="-248.88142" fill="#000000" font-family="'Fira Mono', 'Roboto Mono', monospace" font-size="12px" letter-spacing="0px" stroke-width="1px" word-spacing="0px" style="font-variant-caps:normal;font-variant-east-asian:normal;font-variant-ligatures:normal;font-variant-numeric:normal;line-height:15px;shape-inside:url(#rect4813);white-space:pre" xml:space="preserve"><tspan id="tspan2277" x="180" y="10.85">[MikroTik] ❌ Netwatch Notify: example.com down
-</tspan><tspan id="tspan2279" x="180" y="25.85">
-</tspan><tspan id="tspan2281" x="180" y="40.85">The host 'example.com' (93.184.216.34) is down
-</tspan><tspan id="tspan2283" x="180" y="55.85">since jun/08/2021 06:55:03.</tspan></text>
- </g>
-</svg>
diff --git a/doc/netwatch-notify.d/notification-02-up.avif b/doc/netwatch-notify.d/notification-02-up.avif
new file mode 100644
index 0000000..8dcf26a
--- /dev/null
+++ b/doc/netwatch-notify.d/notification-02-up.avif
diff --git a/doc/netwatch-notify.d/notification-02-up.svg b/doc/netwatch-notify.d/notification-02-up.svg
deleted file mode 100644
index 32dfbcc..0000000
--- a/doc/netwatch-notify.d/notification-02-up.svg
+++ /dev/null
@@ -1,35 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<svg id="svg8" width="493.78" height="113.78" version="1.1" viewBox="0 0 130.65 30.104" xmlns="http://www.w3.org/2000/svg" xmlns:cc="http://creativecommons.org/ns#" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
- <metadata id="metadata5">
-  <rdf:RDF>
-   <cc:Work rdf:about="">
-    <dc:format>image/svg+xml</dc:format>
-    <dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage"/>
-   </cc:Work>
-  </rdf:RDF>
- </metadata>
- <g id="layer1" transform="translate(16.375 11.083)">
-  <rect id="rect857" x="-15.875" y="-10.583" width="129.65" height="29.104" rx="1.6206" fill="#e6e6e6" stroke="#6c5d53" stroke-linecap="round" stroke-linejoin="round"/>
-  <g id="g884" transform="matrix(.5 0 0 .5 -12.406 -7.1146)" stroke-width="2">
-   <path id="path899" d="m23.177 23.177c-2.9635 2.9635-17.991 2.9635-20.955 0-2.9635-2.9635-2.9635-17.991 0-20.955 2.9635-2.9635 17.991-2.9635 20.955 0 2.9635 2.9635 2.9635 17.991 0 20.955z" fill="#fff"/>
-   <g id="g871">
-    <g id="text837" stroke-width=".52916px" aria-label="#!rsc">
-     <path id="path851" d="m7.4832 16.646v-1.0239h-0.54606l0.16577-1.2774h-1.2774l-0.16577 1.2774h-0.97511l0.16577-1.2774h-1.2774l-0.16577 1.2774h-0.70208v1.0239h0.56556l-0.24378 1.8722h-0.68257v1.0239h0.54606l-0.18527 1.3944h1.2774l0.18527-1.3944h0.97511l-0.18527 1.3944h1.2774l0.18527-1.3944h0.70208v-1.0239h-0.56556l0.24378-1.8722zm-2.2037 1.8722h-0.97511l0.24378-1.8722h0.97511z"/>
-     <path id="path853" d="m9.6187 14.179h-1.6382l0.19502 4.271h1.2481zm-0.81909 5.1583c-0.48755 0-0.8776 0.39979-0.8776 0.8776 0 0.48755 0.39004 0.88735 0.8776 0.88735 0.4973 0 0.88735-0.39979 0.88735-0.88735 0-0.4778-0.39004-0.8776-0.88735-0.8776z"/>
-     <path id="path855" d="m13.373 15.612c-0.59482 0-1.1019 0.42905-1.3359 1.1506l-0.13652-1.0044h-1.3359v5.1778h1.5407v-2.6035c0.17552-0.77033 0.4388-1.2286 1.0726-1.2286 0.16577 0 0.30228 0.02925 0.46805 0.06826l0.24378-1.4919c-0.17552-0.04875-0.32178-0.06826-0.51681-0.06826z"/>
-     <path id="path857" d="m16.181 15.592c-1.3066 0-2.116 0.69233-2.116 1.5797 0 0.79959 0.50706 1.3261 1.5309 1.6187 0.9361 0.26328 1.0921 0.37054 1.0921 0.72158 0 0.31203-0.28278 0.48755-0.75083 0.48755-0.50706 0-0.98486-0.20477-1.3749-0.50706l-0.75083 0.83859c0.50706 0.4583 1.2676 0.77033 2.1647 0.77033 1.2871 0 2.3012-0.63382 2.3012-1.7064 0-0.92635-0.57531-1.3554-1.5992-1.6479-0.92635-0.27303-1.0629-0.39004-1.0629-0.66307 0-0.23402 0.20477-0.39004 0.62407-0.39004 0.44855 0 0.8776 0.14627 1.2774 0.39979l0.56556-0.86784c-0.4778-0.39004-1.1506-0.63382-1.9015-0.63382z"/>
-     <path id="path859" d="m21.281 15.592c-1.5504 0-2.5353 1.1506-2.5353 2.7986 0 1.6382 0.97511 2.7108 2.5645 2.7108 0.71183 0 1.2676-0.23403 1.7454-0.61432l-0.67282-0.9556c-0.37054 0.23403-0.62407 0.35104-0.99461 0.35104-0.61432 0-1.0239-0.35104-1.0239-1.5017 0-1.1604 0.38029-1.6089 1.0434-1.6089 0.35104 0 0.65332 0.11701 0.98486 0.37054l0.66307-0.9166c-0.4973-0.4193-1.0531-0.63382-1.7747-0.63382z"/>
-    </g>
-    <g id="g1542" transform="matrix(2 0 0 2 -.41134 3.175)" fill="#676867" fill-rule="evenodd" stroke-width=".26458">
-     <path id="path943" d="m4.9596-1.0196c0.40797 2.8312 1.9272 4.5499 5.0239 4.691-2.918 1.1164-5.9253-1.5076-5.0239-4.691"/>
-     <path id="path945" d="m3.3407-0.52096c0.034969-0.00777 0.038854 0.015542 0.041445 0.041445 0.098431 1.8054 0.85998 3.1744 1.8689 4.1108 1.0089 0.93639 2.3636 1.6941 4.274 1.6604-3.5772 1.4247-7.337-1.9984-6.1856-5.8126"/>
-    </g>
-   </g>
-  </g>
-  <text id="text4811" transform="matrix(.26458 0 0 .26458 -45.214 -6.6039)" x="-248.88142" fill="#000000" font-family="'Fira Mono', 'Roboto Mono', monospace" font-size="12px" letter-spacing="0px" stroke-width="1px" word-spacing="0px" style="font-variant-caps:normal;font-variant-east-asian:normal;font-variant-ligatures:normal;font-variant-numeric:normal;line-height:15px;shape-inside:url(#rect4813);white-space:pre" xml:space="preserve"><tspan id="tspan2242" x="180" y="10.85">[MikroTik] ✅ Netwatch Notify: example.com up
-</tspan><tspan id="tspan2244" x="180" y="25.85">
-</tspan><tspan id="tspan2246" x="180" y="40.85">The host 'example.com' (93.184.216.34) is up
-</tspan><tspan id="tspan2248" x="180" y="55.85">since jun/08/2021 07:01:00.
-</tspan><tspan id="tspan2250" x="180" y="70.85">It was down for 6 checks since jun/08/2021 06:55:03.</tspan></text>
- </g>
-</svg>
diff --git a/doc/netwatch-notify.md b/doc/netwatch-notify.md
index 032106a..b0214e4 100644
--- a/doc/netwatch-notify.md
+++ b/doc/netwatch-notify.md
@@ -17,8 +17,8 @@ optional parent host is not down to avoid false alerts.
 
 ### Sample notifications
 
-![netwatch-notify notification down](netwatch-notify.d/notification-01-down.svg)  
-![netwatch-notify notification up](netwatch-notify.d/notification-02-up.svg)
+![netwatch-notify notification down](netwatch-notify.d/notification-01-down.avif)  
+![netwatch-notify notification up](netwatch-notify.d/notification-02-up.avif)
 
 Requirements and installation
 -----------------------------
diff --git a/doc/sms-forward.d/notification.avif b/doc/sms-forward.d/notification.avif
new file mode 100644
index 0000000..e76f04c
--- /dev/null
+++ b/doc/sms-forward.d/notification.avif
diff --git a/doc/sms-forward.d/notification.svg b/doc/sms-forward.d/notification.svg
deleted file mode 100644
index 4b94850..0000000
--- a/doc/sms-forward.d/notification.svg
+++ /dev/null
@@ -1,36 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<svg id="svg8" width="443.78" height="123.78" version="1.1" viewBox="0 0 117.42 32.75" xmlns="http://www.w3.org/2000/svg" xmlns:cc="http://creativecommons.org/ns#" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
- <metadata id="metadata5">
-  <rdf:RDF>
-   <cc:Work rdf:about="">
-    <dc:format>image/svg+xml</dc:format>
-    <dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage"/>
-   </cc:Work>
-  </rdf:RDF>
- </metadata>
- <g id="layer1" transform="translate(16.375 11.083)">
-  <rect id="rect857" x="-15.875" y="-10.583" width="116.42" height="31.75" rx="1.4552" fill="#e6e6e6" stroke="#6c5d53" stroke-linecap="round" stroke-linejoin="round"/>
-  <g id="g884" transform="matrix(.5 0 0 .5 -12.406 -7.1146)" stroke-width="2">
-   <path id="path899" d="m23.177 23.177c-2.9635 2.9635-17.991 2.9635-20.955 0-2.9635-2.9635-2.9635-17.991 0-20.955 2.9635-2.9635 17.991-2.9635 20.955 0 2.9635 2.9635 2.9635 17.991 0 20.955z" fill="#fff"/>
-   <g id="g871">
-    <g id="text837" stroke-width=".52916px" aria-label="#!rsc">
-     <path id="path851" d="m7.4832 16.646v-1.0239h-0.54606l0.16577-1.2774h-1.2774l-0.16577 1.2774h-0.97511l0.16577-1.2774h-1.2774l-0.16577 1.2774h-0.70208v1.0239h0.56556l-0.24378 1.8722h-0.68257v1.0239h0.54606l-0.18527 1.3944h1.2774l0.18527-1.3944h0.97511l-0.18527 1.3944h1.2774l0.18527-1.3944h0.70208v-1.0239h-0.56556l0.24378-1.8722zm-2.2037 1.8722h-0.97511l0.24378-1.8722h0.97511z"/>
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-     <path id="path855" d="m13.373 15.612c-0.59482 0-1.1019 0.42905-1.3359 1.1506l-0.13652-1.0044h-1.3359v5.1778h1.5407v-2.6035c0.17552-0.77033 0.4388-1.2286 1.0726-1.2286 0.16577 0 0.30228 0.02925 0.46805 0.06826l0.24378-1.4919c-0.17552-0.04875-0.32178-0.06826-0.51681-0.06826z"/>
-     <path id="path857" d="m16.181 15.592c-1.3066 0-2.116 0.69233-2.116 1.5797 0 0.79959 0.50706 1.3261 1.5309 1.6187 0.9361 0.26328 1.0921 0.37054 1.0921 0.72158 0 0.31203-0.28278 0.48755-0.75083 0.48755-0.50706 0-0.98486-0.20477-1.3749-0.50706l-0.75083 0.83859c0.50706 0.4583 1.2676 0.77033 2.1647 0.77033 1.2871 0 2.3012-0.63382 2.3012-1.7064 0-0.92635-0.57531-1.3554-1.5992-1.6479-0.92635-0.27303-1.0629-0.39004-1.0629-0.66307 0-0.23402 0.20477-0.39004 0.62407-0.39004 0.44855 0 0.8776 0.14627 1.2774 0.39979l0.56556-0.86784c-0.4778-0.39004-1.1506-0.63382-1.9015-0.63382z"/>
-     <path id="path859" d="m21.281 15.592c-1.5504 0-2.5353 1.1506-2.5353 2.7986 0 1.6382 0.97511 2.7108 2.5645 2.7108 0.71183 0 1.2676-0.23403 1.7454-0.61432l-0.67282-0.9556c-0.37054 0.23403-0.62407 0.35104-0.99461 0.35104-0.61432 0-1.0239-0.35104-1.0239-1.5017 0-1.1604 0.38029-1.6089 1.0434-1.6089 0.35104 0 0.65332 0.11701 0.98486 0.37054l0.66307-0.9166c-0.4973-0.4193-1.0531-0.63382-1.7747-0.63382z"/>
-    </g>
-    <g id="g1542" transform="matrix(2 0 0 2 -.41134 3.175)" fill="#676867" fill-rule="evenodd" stroke-width=".26458">
-     <path id="path943" d="m4.9596-1.0196c0.40797 2.8312 1.9272 4.5499 5.0239 4.691-2.918 1.1164-5.9253-1.5076-5.0239-4.691"/>
-     <path id="path945" d="m3.3407-0.52096c0.034969-0.00777 0.038854 0.015542 0.041445 0.041445 0.098431 1.8054 0.85998 3.1744 1.8689 4.1108 1.0089 0.93639 2.3636 1.6941 4.274 1.6604-3.5772 1.4247-7.337-1.9984-6.1856-5.8126"/>
-    </g>
-   </g>
-  </g>
-  <text id="text4811" transform="matrix(.26458 0 0 .26458 -44.966 -6.6039)" x="-248.88142" fill="#000000" font-family="'Fira Mono', 'Roboto Mono', monospace" font-size="12px" letter-spacing="0px" stroke-width="1px" word-spacing="0px" style="font-variant-caps:normal;font-variant-east-asian:normal;font-variant-ligatures:normal;font-variant-numeric:normal;line-height:15px;shape-inside:url(#rect4813);white-space:pre" xml:space="preserve"><tspan id="tspan2204" x="180" y="10.85">[MikroTik] 📨 SMS Forwarding from 7277
-</tspan><tspan id="tspan2206" x="180" y="25.85">
-</tspan><tspan id="tspan2208" x="180" y="40.85">Received this message by MikroTik from 7277:
-</tspan><tspan id="tspan2210" x="180" y="55.85">
-</tspan><tspan id="tspan2212" x="180" y="70.85">On Jun/12/2021 13:44:10 GMT -0 type class-0:
-</tspan><tspan id="tspan2214" x="180" y="85.85">Welcome to our network!</tspan></text>
- </g>
-</svg>
diff --git a/doc/sms-forward.md b/doc/sms-forward.md
index f75b78f..09dd36a 100644
--- a/doc/sms-forward.md
+++ b/doc/sms-forward.md
@@ -15,7 +15,7 @@ A broadband interface with SMS support is required.
 
 ### Sample notification
 
-![sms-forward notification](sms-forward.d/notification.svg)
+![sms-forward notification](sms-forward.d/notification.avif)
 
 Requirements and installation
 -----------------------------