- gpg --import --no-tty /tmp/mpapis.asc && \
- gpg --import --no-tty /tmp/pkuczynski.asc && \
- curl -L https://get.rvm.io | bash -s stable && \
- /usr/local/rvm/bin/rvm install 2.7 -j $(grep -c processor /proc/cpuinfo) && \
- /usr/local/rvm/bin/rvm alias create default ruby-2.7 && \
- /usr/local/rvm/bin/rvm-exec default gem install bundler --version 2.3.26
+ echo "gem: --no-document" >> ~/.gemrc && \
+ gem install --conservative --version '>= 2.4.0' bundler