Every animal gets a proper health record with EinVault, a self-hosted tracker for companion care covering vet history, daily routines, and the helpers involved. Each profile holds species, breed, vet details, emergency contacts, and a photo, and the activity choices adapt to the animal, from dog walks to litter box visits. A daily journal records mood, photos, and videos, and tagged markdown notes keep feeding instructions and quirks pinned where caretakers find them. Health tracking covers vet visits, vaccinations, procedures, and weight history; medications carry doses and end dates linked to scheduling reminders. A one-tap Given log stamps each dose and shows the next due time, and incidents follow an injury or symptom to resolution with severity, updates, and owner alerts. For time away, a printable caretaker sheet puts schedules, contacts, and selected notes on one page for a sitter who needs no account. Recurring reminders, a calendar feed, full-text search with companion and type filters, and a token API for logging from smart buttons or scripts round out daily care. One Docker container runs it with admin, member, and caretaker roles, optional single sign-on and two-factor authentication, and six interface languages. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT licensed.