One other added bonus for anyone interested. I realized that the same technique I used for sending out a notification when an addon updates could also be used to send out a notification when a new addon gets listed.
Obviously knowing about new addons is not as important as keeping your current addons up to date but still it is nice to know when new things are available. HACS does a nice job of this by highlighting components that are new or updated since the last time you’ve been there, the add-on store doesn’t make as easy to figure out what’s new. You just kind of have to scan the list and click on things that seem unfamiliar or that the forum has directed you to.
So I closed this gap. Well half of it 
. It will send you a notification whenever an add-on is added to any repo you have listed in the add-on store. It won’t do anything for updates to add-ons you don’t have installed. It probably could but that seemed like too much to me.
Anyway if you want to use it it requires Node-RED and that you have imported my other Node RED stuff above (since it depends on the same components). To use it first add this sensor to HA:
# Sensor to track details on new addons
- platform: command_line
name: New addons
command: 'curl http://supervisor/addons -H "Authorization: Bearer $(printenv SUPERVISOR_TOKEN)" | jq --slurpfile slugs found_addon_slugs.txt ''{"addons":[.data.addons[] | select(.slug as $slug | $slugs | index($slug) | not)], "repositories":.data.repositories}'''
value_template: '{{ value_json.addons | length }}'
json_attributes:
- addons
- repositories
- addon_slugs
It’s similar to the other supervisor one above but it hits http://supervisor/addons which returns info on all available addons instead of http://supervisor/supervisor/info which only returns info on addons you have installed.
After that you will need this file notifier:
- name: 'Update found addon slugs'
platform: file
filename: 'found_addon_slugs.txt'
This will be used to keep track of the addons you’ve already seen, you can see the file is referenced in the sensor above. Technically you can do without this and just store details of all addons in sensor.new_addons and compare old state and new state on change. But if you do that the sensor will be huge so remember to tell recorder to exclude it.
Then after that you can import this config into Node RED:
[{"id":"fd65848.75a1178","type":"trigger-state","z":"a74fee2d.ac9068","name":"New addon","server":"cc03735a.94933","exposeToHomeAssistant":false,"haConfig":[{"property":"name","value":""},{"property":"icon","value":""}],"entityid":"sensor.new_addons","entityidfiltertype":"exact","debugenabled":false,"constraints":[{"id":"h9meihjciqa","targetType":"this_entity","targetValue":"","propertyType":"current_state","propertyValue":"new_state.state","comparatorType":">","comparatorValueDatatype":"prevEntity","comparatorValue":"state"}],"constraintsmustmatch":"all","outputs":2,"customoutputs":[],"outputinitially":false,"state_type":"num","x":170,"y":620,"wires":[["380c1702.666788"],[]]},{"id":"380c1702.666788","type":"component","z":"a74fee2d.ac9068","name":"Filter out seen addons","targetComponent":{"id":"3841792.0037586","name":"Find distinct set","api":[{"name":"array_whole","type":"json","required":true},{"name":"array_subset","type":"json","required":true},{"name":"field","type":"string","required":true}]},"paramSources":{"array_whole":{"name":"array_whole","type":"json","required":true,"source":"data.event.new_state.attributes.addons","sourceType":"msg"},"array_subset":{"name":"array_subset","type":"json","required":true,"source":"data.event.old_state.attributes.addons","sourceType":"msg"},"field":{"name":"field","type":"string","required":true,"source":"slug","sourceType":"str"}},"x":380,"y":620,"wires":[["d22ecf9e.0214a8"]]},{"id":"d22ecf9e.0214a8","type":"split","z":"a74fee2d.ac9068","name":"","splt":"\\n","spltType":"str","arraySplt":1,"arraySpltType":"len","stream":false,"addname":"","x":550,"y":620,"wires":[["1af4d2ea.ecb0f5","f2e48257.2e042"]]},{"id":"1af4d2ea.ecb0f5","type":"component","z":"a74fee2d.ac9068","name":"Notify me","targetComponent":{"id":"3a1d9ae6.50d41e","name":"Notify me","api":[{"name":"title","type":"string","required":true},{"name":"message","type":"string","required":true},{"name":"tag","type":"string","required":false},{"name":"image_url","type":"string","required":false},{"name":"ttl","type":"number","required":false},{"name":"url","type":"string","required":false},{"name":"actions","type":"json","required":false},{"name":"requireInteraction","type":"boolean","required":false},{"name":"priority","type":"string","required":false},{"name":"silent","type":"boolean","required":false}]},"paramSources":{"title":{"name":"title","type":"string","required":true,"source":"\"New HA addon - \" & payload.name","sourceType":"jsonata"},"message":{"name":"message","type":"string","required":true,"source":"payload.description & \"\\n(in \" & \t$single(\t $globalContext(\"homeassistant.homeAssistant.states['sensor.new_addons'].attributes.repositories\"),\t function($repo) {\t $repo.slug = $$.payload.repository\t }\t).name & \")\"","sourceType":"jsonata"},"tag":{"name":"tag","type":"string","required":false,"source":"payload.slug","sourceType":"msg"},"image_url":{"name":"image_url","type":"string","required":false,"source":"payload.icon or payload.logo ? \t(\"http://hassio.local/api/hassio/addons/\" & payload.slug & \"/\" & \t(payload.icon ? \"icon\" : \"logo\")) : \"http://hassio.local/local/home-assistant.png\"","sourceType":"jsonata"},"ttl":{"name":"ttl","type":"number","required":false,"source":"0","sourceType":"num"},"url":{"name":"url","type":"string","required":false,"source":"\"http://hassio.local/hassio/addon/\" & payload.slug","sourceType":"jsonata"},"actions":{"name":"actions","type":"json","required":false,"source":"null","sourceType":"json"},"requireInteraction":{"name":"requireInteraction","type":"boolean","required":false,"source":"null","sourceType":"json"},"priority":{"name":"priority","type":"string","required":false,"source":"","sourceType":"str"},"silent":{"name":"silent","type":"boolean","required":false,"source":"false","sourceType":"bool"},"to_all":{"name":"to_all","type":"boolean","required":false,"source":"true","sourceType":"bool"}},"x":710,"y":620,"wires":[[]]},{"id":"f2e48257.2e042","type":"api-call-service","z":"a74fee2d.ac9068","name":"Add to found slugs list","server":"cc03735a.94933","version":1,"debugenabled":false,"service_domain":"notify","service":"update_found_addon_slugs","entityId":"","data":"{\"message\":\"\\\"{{ payload.slug }}\\\"\"}","dataType":"json","mergecontext":"","output_location":"","output_location_type":"none","mustacheAltTags":false,"x":740,"y":660,"wires":[[]]},{"id":"cc03735a.94933","type":"server","z":"","name":"Home Assistant","legacy":false,"addon":true,"rejectUnauthorizedCerts":true,"ha_boolean":"y|yes|true|on|home|open","connectionDelay":true,"cacheJson":true}]
It looks like this:
And that’s it, enjoy!
