How can I donate my self-custodied Bitcoin after death while keeping access during my lifetime?

I'm looking for a way to donate the rest of my Bitcoin from my self-custodied wallet to some active Bitcoin addresses after my death (let's say 100 years from now or 50 years after inactivity), while still being able to use it freely during my lifetime. I don't want to lock the funds with time-locked transactions or rely on any third-party services. Is there a native Bitcoin solution for this, or do I need to look into it as an enhancement request?

If you are a Bitcoin developer, please consider a solution if one hasn't been implemented yet, and your beloved future Bitcoin team will receive my Bitcoin without any questions asked! Your successor Bitcoin team can show this post as proof that you received my Bitcoin as a donation for free because of what you did in the past!!

I am also considering being cryopreserved if I reach a certain age while being alive, so maybe I can meet Hal Finney when he wakes up in the future. But the truth is, I might die suddenly for a stupid reason, without any part of me being able to survive to be frozen in the first place! This is why I want to be able to transfer my Bitcoin in future after a sudden death, otherwise, freezing my body after a certain age or death seems like a perfect use case for holding Bitcoin!

For now the only solution I can think of is to let my Bitcoin be lost with me, which doesn't seem like a bad idea because it could boost Bitcoin's value! It’s like giving my Bitcoin to all Bitcoiners rather than just a few. Still, the idea of donating to organizations like Bitcoin developers or human rights groups feels worth exploring. What do you think?

FYI, I don’t have children or anyone else whom I can or want to trust. I prefer to live trustlessly, free, and without any commitments in my lifetime, but I would like to commit to doing something after my death. I hope that makes sense!