Custom death command

Aight this idea is quite simple, this command would be “op-only” meaning only access if you have commands on or whatever… anyways the command would basically have 2 options; either kill the player the command runs on or have a custom death message upon their death. For example: /personaldeath @a kill “got eaten by dinosaur” /personaldeath @a upon “got eaten by dinosaur Now the upon means when they die, and the “kill” would just straight up kill them with the message. Also this would kinda be alike to the /me command but like actually when a player dies. Also a command like he first one would likely respond with the death message of: ILikeJasmineRice got eaten by a dinosaur Anyways ya that’s me idea