Ruby rails

gemのインストール先　例えばbootstrap　環境によって違う

~/.rbenv/versions/2.5.3/lib/ruby/gems/2.5.0/gems/bootstrap-sass-3.4.1/assets/stylesheets/bootstrap

Node.jsのインストール

brew install nodebrew

nodebrew -v
   nodebrew 1.0.1
   Example:
   # install
   nodebrew install v8.9.4
   # use a specific version number
   nodebrew use v8.9.4

mkdir -p ~/.nodebrew/src

nodebrew install stable

nodebrew ls
   v14.4.0
   current: none

nodebrew use 14.4.0
   use v14.4.0

nodebrew ls        
   v14.4.0
   current: v14.4.0

echo 'export PATH=$HOME/.nodebrew/current/bin:$PATH' >> ~/.zprofile

source ~/.zprofile

node -v                                                            
   v14.4.0

tepnote

rails _6.0.3_ new tepnote -d postgresql