mtx-install
ConTeXt Installer
2.01
list modules
install modules
install (zip) file(s)
Examples
mtxrun --script install-modules --list
mtxrun --script install-modules --install filter letter
mtxrun --script install-modules --install tikz
mtxrun --script install-modules --install --all
mtxrun --script install-modules --install --module t-letter.zip