Now, to figure out how to get an invite to Tildes...
dion_starfire
Have you looked into Rebble? I'm still wearing my Time Steel as a daily driver. I've yet to find a newer smartwatch that hits all the features I care about.
Simple solution is "resistant damage" - damage taken by burning your life force to power spells can only be healed by natural healing, not magical healing. It's tracked separately, and similar to subdual damage, you add it together with normal damage to determine if the character reaches 0HP. If you choose to go this route, I suggest that HP not be your primary fuel for spellcasting, but rather have the patron grant a class feature that allows "overcasting" by burning one's life force to power additional spells after you've run out of normal spell slots.
I was thinking something similar. I use Arch because it's easy and user friendly for me. I also come from a history of using Slackware in the mid-90s, to Gentoo in the mid-00s, to Arch in the mid-teens. So whenever anyone asks how I got to where I am with Linux, I generally recommend that they don't follow the same path of pain, and start on something that's actually user-friendly like Mint or Ubuntu.
This is clearly humor, but for anyone wondering what the actual connection is, it's that Mark Shuttleworth, the billionaire founder and CEO of Canonical (the company that maintains Ubuntu), is from South Africa. He liked the word, and decided to name his new Debian fork after it.