YJIT is Ruby's default just-in-time compiler. It is considered production-ready since Ruby 3.2 (source).
The linked rbenv plugin rbenv-each is very helpful to keep QoL gems up to date that are not part...
tl;dr asdf allows you to manage multiple runtime versions with a single CLI tool and is backwards compatible by...
Siehe Gems, bundler, rbenv [1d] im Developer Curriculum.
ZSH is an alternative command line shell that includes some features like spelling correction, cd automation, better theme, and plugin...
Installing old Rubies (<= 2.3) with a standard rbenv + ruby-build is no longer possible on Ubuntu 20.04. This is because...
A recent patch level Ruby update caused troubles to some of us as applications started to complain about incompatible gem...
For newer Ubuntu versions we currently need to install the patch level version 1.8.7-p375, otherwise the dev dependencies from...
From Ubuntu 17, rbenv fails to install Ruby below 2.4 because of a mismatching OpenSSL dependency: it needs libssl1.0-dev for...
Normally you can list all gems of the current ruby version with gem list, which also includes the gems of...
Summary: Don't add chromedriver-helper to the Gemfile the executables might break your tests in projects where chromedriver-helper...
You can use local copies of gems in your Gemfile like this: gem 'spreewald', path: '~/gems/spreewald' As soon as you...
We have projects that have been developed using many different versions of Ruby. Since we do not want to...
This method will remove automatically installed packages that no other packages depend on any more. This, of course...
Don't use exec without user parameter If you use exec without user parameter, the command will get executed as...
To update your Rubygems to the latest available version, type the following: gem update --system Note that you have a...
To check which rubygems versions your different rbenv rubys are using, you can use this small bash script:
Rails is our web framework. Goals Be able to write a simple Rails application. Understand how Rails talks to the...
makandra is responsible for maintaining about 75 Ruby projects. These projects use a large number of different versions for Ruby...
We will be installing rbenv and ruby-build from our own fork, not from the Ubuntu sources. Installing rbenv
When you tell rbenv to install a Ruby it does not know about, you will get an error message.
If you want to switch to another ruby versions, you have several options, depending on what you want: Do you...
Rbenv won't compile REE 2011.03 properly on Ubuntu 12.04, failing with an error in tcmalloc.cc. If you want to...
Do not use .rvmrc files to specify Ruby version and gemset configuration any longer, it's deprecated and not considered...