Now I'm wondering what your acquaintance's tech stack is, and more generally, what the most reliable way to keep running scheduled jobs after death is - since Twitter won't remove accounts that still log in, I kind of want to set up a cronjob to keep my username active for as long as I can. (Assume that the job itself doesn't change, i.e., there's no need to move away from a deprecated API.)
Maybe Lambda + CloudWatch Events? AWS probably won't go away for decades.
Does your credit card automatically close when your death is reported to the financial system, or can you direct it to stay open in your will + set aside a bit of money to pay off the couple-cent bill in perpetuity?