Essentially, I’m looking for self-destructing messages. I grab a link, I send it to a family member, they read the information, it’s gone after they read it, and all they need to have to interact with it is the original link to the url.
Are there any foss solutions by which to just type out a message, send a link to someone and have it be deleted after they read it?
I’m aware that Nextcloud has the ability to share links to users who don’t have accounts for temporary spans of time, that’s… similar, but I don’t believe it can instantly disable after the first visit.
I know you mentioned Nextcloud and if you happen to already be running it you can use the add-on/module/whatever called Secrets, its exactly what you describe. You make note, send link (can password protect if you want) and once its been viewed its gone.
If you don’t already have Nextcloud, check out vaultwarden’s (bitwarden) send feature.