The reimagined grave system.
After the death of the player, the player's corpse will spawn in its place (at the moment it is a regular humanoud skeleton). You can go to it and collect things (by holding RMB), by default only its owner or a player in a creative can collect a corpse. Not despawning.
In addition, a waypoint will be created at the place of death. By default, it will try to resolve conflicts with known mods, for example supports StreamDC.
Since the game is an unpredictable thing, this mod also adds the ability to restore items lost at the last death using the /return