Ruby apps

Lazy-loading rbenv

Since v3.1.44 it is possible to initialize rbenv helper code on first-run thus improving shell load times. Set LAZY_LOAD_RUBY=1 in ~/.bashrc. A first-time invocation of ruby, gem, or rbenv will initialize rbenv code, shimming the path as needed.

Selecting Ruby versions

It is strongly recommended to select a Ruby version other than system default.

Example: to change Ruby versions

rbenv install 2.4.3
rbenv local 2.4.3
# Set 2.4.3 as the default system interpreter
rbenv global 2.4.3