Config reference: feather.yml

FeatherMC’s own options live in feather.yml in the server root, separate from Paper’s config/ folder. The file is created with every option and its comment on first start. It is read once at startup, so restart to apply changes.

mass-destruction

Guards against mass-TNT “orbital strike” detonations.

Key	Type	Default	Description
prevent-tnt-mass-detonation	boolean	false	When true, a dense cluster of primed TNT is deleted just before it explodes instead of detonating. Only TNT inside the radius is removed.
threshold	int	100	How many primed TNT within the radius counts as a mass detonation.
radius	double	8.0	Radius in blocks checked around a TNT that is about to explode.

feather.yml (as generated)

mass-destruction:
  prevent-tnt-mass-detonation: false
  threshold: 100
  radius: 8.0