The packages that make Frost: Debian trixie plus these. Frost systems already use it; to add it to another Debian trixie system:
curl -fsSL https://apt.frostig.dev/frost-archive-keyring.asc | sudo tee /usr/share/keyrings/frost-archive-keyring.asc >/dev/null echo "deb [signed-by=/usr/share/keyrings/frost-archive-keyring.asc] https://apt.frostig.dev trixie main" | sudo tee /etc/apt/sources.list.d/frost.list