voorkant-cli subscribe: emit json

[Habbie]

example usage to get just light brightness, real time, one line with one number on it per update:

build/voorkant-cli subscribe light 2> /dev/null | jq 'if .entity_id == "light.plafondlamp_kantoor_peter_level_light_color_on_off" then .attributes.brightness/2.55 else null end | select(.!=null)'

[Habbie]

solar example:

build/voorkant-cli subscribe sensor 2> /dev/null | jq 'if .entity_id == "sensor.solaredge_i1_ac_power" then .state else null end | select(.!=null)' --raw-output

[Habbie]

screenshot after running this for ~15 minutes