Question about bitcoinscript Maybe nostr:npub10vlhsqm4qar0g42p8g3plqyktmktd8hnprew45w638xzezgja95qapsp42 can elaborate

I want to send my bitcoins to output utxo which can either be unlocked by the private key or after a certain blockheight. This way miners in the future could get my bitcoins long after I am passed away

Does such a script already exist?