The only digital life I'm worried about in the event of my untimely death is the few IRC channels I frequent. Just let those guys know I'm gone, put up a "He's dead, Jim, take what you want." on my GitHub and leave the rest to bit-rot. I don't think the cloud cares that I won't feed it data no more.
Write a dead man's switch script. You just have to remind it you're not dead once a month for example.
However don't do what a colleague of mine did back in the early 00s. after a motorcycle accident he was in hospital for three weeks. This was back in the days before ubiquitous internet access (horrible times!). His dead mans switch went off after two weeks and caused an email to be sent to his boss to call him a vacuous cunt. Obviously that didn't go down well at all.
You also have to be sure the machine you're hosting this on won't be taken down if you really die and aren't around to manage/pay for it anymore. Server in your closet? The plug will be pulled long before 6 months pass after you're gone. Server in a data center? You can't be paying for that monthly, as chances are your credit card will be cancelled and your machine will be shut down for non-payment before your 6 month deadline. Also, hardware failure makes it a possibility that your server will not survive 6 months uptime anyway.
Basically, dead man's switch is not even remotely guaranteed to work.
> Write a dead man's switch script. You just have to remind it you're not dead once a month for example.
I've been meaning to do this for years. Having it trigger when I log onto my desktop/laptop is ideal (with some additional option in case I'm hospitalized, like mobile phone trigger too).