Requirements

Java

IgnisCore requires Java 25.

Server software

One bootstrap JAR works on every supported platform. Each server loads only its own entry point via ServiceLoader.

Platform	Supported versions	Notes
Spigot	1.20.x, 1.21.x, 26.1.x	NBTAPI required
Paper	1.20.x, 1.21.x, 26.1.x	NBTAPI required; Paper hooks used when available
SpongeVanilla	1.20.x (API 8.5.x), 1.21.x (API 12.x), 26.1.x (API 19.x)	No NBTAPI

Dependencies (Bukkit family)

Plugin	Required	Purpose
NBTAPI	Yes	Item and block NBT tagging
ProtocolLib	No	Enhanced protocol features when present

Permissions

Permission	Default	Purpose
igniscore.admin	op	All /ignis commands

Build from source

mvn clean package

Deploy bootstrap/target/igniscore-1.0.0.jar.

Related

• Configuration — resource pack host and performance tuning
• Architecture — module layout and boot flow