`curl <url> | sh` but for Elixir >= 1.12

curl.sh

# Step 2: Pipe the curl's output into elixir directly.
# Warning: only execute scripts you trust.
$ FILENAME="https://raw.githubusercontent.com/wojtekmach/mix_install_examples/d98fce880eedda18747e592ec6c42b6ca817136f/scenic.exs" \
    curl "$FILENAME" | exsh

exsh.sh

# Step 1: Add the following function to your .bashrc
# (or similar file):
function exsh () {
  IFS= read -r -d $'\0' contents;
  elixir =(echo "$contents");
}