Celestria

• Shooting stars:
  - randomly triggered serverside (only at night) and synced to all players
  - can also be created using commands (for showcase - /celestria shooting_star %PLAYER% x z)
  - server sends packet to client which then renders the shooting star (mixin into WorldRenderer)
  - players get Minecraft's Luck effect
  - client-side mode that automatically gets enabled when joining servers without the mod
• Insomnia:
  - on start of a night with full moon, players have an individual and configurable chance of receiving the 'Insomnia' effect
  - effect prevents players from entering a bed, instead sending a chat message to inform them about the reason

A video showcase of Celestria's shooting stars
The chance of shooting stars occuring is of course cranked up quite a bit for showcasing purposes