[throwawaysleep]

Would they progressively access it or is this a time capsule that you want to add to until they are 20, but they get in one big dump?

[delboni]

Good question, if I use email would work because the date and subject of each email (still a huge inbox to read), but I didn't thought much in others alternatives. One could be markdown files, one file by each post sorted by date (kinda like an offline blog in obsidian.md).