A Healthcheck framework for my home endpoints

(LLMs were used to help organize and translate this post) Why: the failure I can't see (Related posts: My Personal Information System , Personal Information System Implementation ) A backup that silently stopped working is worse than no backup, because I only find out when I need it. My goal at home is simple to state: preserve my information. That means identification and health documents, contracts and invoices, professional work, about 750 GB of photographs and 182 GB of lossless music. The authoritative copy lives on my laptop (lapm). A small Raspberry Pi (rasp1) is only a passing spot: it runs the VPN endpoint and the services that bring my phone's photos and contacts home. Both run Alpine Linux. Around that data sit several things that protect it: encrypted backups to the cloud, a firewall with no open ports, a VPN, a local DNS resolver, a correct clock, and regular updates. Each one only protects me while it works, and each one fails quietly. A cron job stops, a repository…