The recommended way to install ruby is through rvm and rbenv.
Why are these methods so slow? I have seen packages 10x times larger installing in much quicker time.
Because they compile a fresh copy of ruby for each versioned installation. That ought to have been obvious from both the documentation and the output of rvm.
rvmis more informative, but the [non-obvious] output ofrbenvis the following hang for ten minutes: "Installing ruby-X.Y.Z ..." – emallove Nov 01 '21 at 14:25