Shows Anwesenheit/Status as emoji via templates (input_select states
mapped to symbols instead of raw text) plus Netz and Solar power
sensors. Token documented in .env.example.
Documents every {{HOMEPAGE_VAR_*}} placeholder used in services.yaml
and proxmox.yaml, and notes that the real .env must live in the
project root (not config/) for Homepage/Next.js to pick it up.