One-line installer for the mars reference CLI.
Detects platform, verifies SHA-256 checksums, drops the binary in
~/.local/bin (or /usr/local/bin if root).
curl -fsSL https://download.mars.glass | sh
curl -fsSL https://download.mars.glass | INSTALL_REGGIE=1 sh
curl -fsSL https://download.mars.glass \ | MARS_VERSION=1.0.0 sh