first rails 8.0.1 install, errors.

gistfile1.txt

WARN: Unresolved or ambiguous specs during Gem::Specification.reset:
      stringio (>= 0)
      Available/installed versions of this gem:
      - 3.1.2
      - 3.0.4
WARN: Clearing out unresolved specs. Try 'gem cleanup <gem>'
Please report a bug if this causes problems.
         run  bundle lock --add-platform=x86_64-linux
Writing lockfile to /home/oceanician/code/montes/malagamontes/Gemfile.lock
         run  bundle binstubs bundler
       rails  importmap:install
<internal:/home/oceanician/.rbenv/versions/3.2.2/lib/ruby/3.2.0/rubygems/core_ext/kernel_require.rb>:37:in `require': cannot load such file -- bootsnap/setup (LoadError)
	from <internal:/home/oceanician/.rbenv/versions/3.2.2/lib/ruby/3.2.0/rubygems/core_ext/kernel_require.rb>:37:in `require'
	from /home/oceanician/code/montes/malagamontes/config/boot.rb:4:in `<top (required)>'
	from bin/rails:3:in `require_relative'
	from bin/rails:3:in `<main>'
       rails  turbo:install stimulus:install
<internal:/home/oceanician/.rbenv/versions/3.2.2/lib/ruby/3.2.0/rubygems/core_ext/kernel_require.rb>:37:in `require': cannot load such file -- bootsnap/setup (LoadError)
	from <internal:/home/oceanician/.rbenv/versions/3.2.2/lib/ruby/3.2.0/rubygems/core_ext/kernel_require.rb>:37:in `require'
	from /home/oceanician/code/montes/malagamontes/config/boot.rb:4:in `<top (required)>'
	from bin/rails:3:in `require_relative'
	from bin/rails:3:in `<main>'
         run  bundle binstubs kamal
         run  bundle exec kamal init
Created configuration file in config/deploy.yml
Created .kamal/secrets file
Created sample hooks in .kamal/hooks
       force  .kamal/secrets
       force  config/deploy.yml
       rails  solid_cache:install solid_queue:install solid_cable:install
<internal:/home/oceanician/.rbenv/versions/3.2.2/lib/ruby/3.2.0/rubygems/core_ext/kernel_require.rb>:37:in `require': cannot load such file -- bootsnap/setup (LoadError)
	from <internal:/home/oceanician/.rbenv/versions/3.2.2/lib/ruby/3.2.0/rubygems/core_ext/kernel_require.rb>:37:in `require'
	from /home/oceanician/code/montes/malagamontes/config/boot.rb:4:in `<top (required)>'
	from bin/rails:3:in `require_relative'
	from bin/rails:3:in `<main>'
oceanician@River:~/code/montes$ gem cleanup stringio
Cleaning up installed gems...
Clean up complete
oceanician@River:~/code/montes$ ls
Gemfile  Gemfile.lock  malagamontes
oceanician@River:~/code/montes$ rm -Rf malagamontes
oceanician@River:~/code/montes$ bundle exec rails new malagamontes

bundle exec gem install rubygems-update
Update to 3.6.3

A new release of RubyGems is available: 3.4.10 → 3.6.3!
Run gem update --system 3.6.3 to update your installation.

oceanician@River:~/code/montes$ gem update --system 3.6.3
ERROR: Your RubyGems was installed trough APT, and upgrading it through RubyGems
itself is unsupported. If you really need the latest version of RubyGems (tip:
you usually don't), then you need to install RubyGems (and Ruby) manually,
maybe using tools like ruby-install, rvm, etc.