Decko looks like an awesome content system to use with a local project!

It failed to install on Windows 10. Ruby was already installed. Ruby works with Jekyll. It seems that the issue is not in the Ruby install.

Additonal dependencies were not installed, as usually a content system will detect what is missing & auto-install it.

During the install, the following occurred:

warning: dependency cycle detected:
warning: mingw-w64-x86_64-harfbuzz will be installed before its mingw-w64-x86_64-freetype dependency

During the install, the following happened & here's what I did:

rake's executable "rake" conflicts with C:/Ruby26-x64/bin/rake
Overwrite the executable? [yN]  y
Successfully installed rake-12.3.0

Later, the install terminated:

ERROR:  While executing gem ... (Errno::EINVAL)
    Invalid argument @ dir_s_mkdir - ./<

To explore this further, I started the server:

Unable to load the EventMachine C extension; To use the pure-ruby reactor, require 'em/pure_ruby'
rake aborted!
LoadError: cannot load such file -- 2.6/rubyeventmachine
C:/ruby/deckotest/config/application.rb:3:in `require'
C:/ruby/deckotest/config/application.rb:3:in `<top (required)>'
C:/ruby/deckotest/Rakefile:5:in `require'
C:/ruby/deckotest/Rakefile:5:in `<top (required)>'
(See full trace by running task with --trace)

So I reran it with --trace:

Traceback (most recent call last):
        5: from script/decko:6:in `<main>'
        4: from script/decko:6:in `require'
        3: from C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/decko-0.10.0/lib/decko/commands.rb:86:in `<top (required)>'
        2: from C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/decko-0.10.0/lib/decko/commands.rb:59:in `run_db_task'
        1: from C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/decko-0.10.0/lib/decko/commands.rb:59:in `new'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/decko-0.10.0/lib/decko/commands/rake_command.rb:11:in `initialize': invalid option: --trace (OptionParser::InvalidOption)

Please advice on how this can move forward. Thanks!