You need to edit the /home/pi/MagicMirror/node_modules/rrule-alt/lib/rrule.js file. See the post below.

https://forum.magicmirror.builders/topic/2208/calendar-shows-no-entries-after-mm-update/29?page=3

From the post…
Edit this file

/home/pi/MagicMirror/node_modules/rrule-alt/lib/rrule.js
Go to line 56 or search for the first occurance of “ORDINAL_BASE” and change this line:

ORDINAL_BASE: new Date(1970, 0, 1),
set it to a lower year like 1900.
Then restart your magic mirror (pm2 restart mm)

@Andrius-ok
You need both MMM-Snow and MMM-Remote-Control, and its not just my config you need. here are the basic steps I took…

1. Using home assistant (for me on another pi) https://home-assistant.io/
2. Set up a Sensor in configuration.yaml for HomeAssistant for weather underground

- platform: wunderground
  api_key: xxxxxxxxxxxxx
  monitored_conditions:
    - alerts
    - dewpoint_f
    - temp_f
    - weather

3. Automation in Home Assistant will use sell commands in configuration.yaml to run

switch
    mmsnow:
      command_on: 'curl "http://192.XXX.X.XXX:8090/remote?action=SHOW&module=module_0_MMM-Snow"'
      command_off: 'curl "http://192.XXX.X.XXX:8090/remote?action=HIDE&module=module_0_MMM-Snow"' 

4. Automation in HA calls these when the state changes to "Snow"

• alias: “ShowSnow”
  initial_state: True
  trigger:
  platform: state
  entity_id: sensor.pws_weather
  to: ‘Snow’
  action:

  • service: shell_command.show_snow

• alias: “HideSnow”
  initial_state: True
  trigger:
  platform: state
  entity_id: sensor.pws_weather
  from: ‘Snow’
  action:

  • service: shell_command.hide_snow

I use home assistant along with smartthings to automate my lights...
I plan to share my entire project soon.

You can do this today but need Home Assistant to monitor the weather. This uses weather underground. It works great for me, when it starts snowing my MM displays snow.

see…
https://forum.magicmirror.builders/topic/1232/mmm-snow-yet-another-snow-module/14

@McSorley
I have done this, worked quite well this weekend. Used HomeAssistant to know when it was snowing and if the description changes to “Snow” then have MM unhide the MMM-Snow module. I used RemoteControl to unhide and hide…

This is what I use for my washer/dryer, mine is not on wifi so I have to rely on power and temp sensors to trigger a “running” or “done” state. It may be crude as I may not know exactly what I am doing but it works!

https://github.com/jasondreher/MMM-door-sensor3

And I use Home Assistant (https://forum.magicmirror.builders/topic/10664/home-assistant-controling-my-magic-mirror) to trigger when you may use ifttt.

@cowboysdude
Here is a short description, let me know if you need more detail.
https://github.com/jasondreher/Alexa-Timer/blob/main/README.md