archlinux cannot load config file

[gagalago]

when I try to start dory I have the following error:

$ dory start  
<internal:/usr/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb>:85:in `require': cannot load such file -- /usr/lib/ruby/gems/3.0.0/gems/dory-1.1.1/lib/dory/config (LoadError)
	from <internal:/usr/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb>:85:in `require'
	from /usr/lib/ruby/gems/3.0.0/gems/dory-1.1.1/lib/dory.rb:2:in `block in <top (required)>'
	from /usr/lib/ruby/gems/3.0.0/gems/dory-1.1.1/lib/dory.rb:1:in `each'
	from /usr/lib/ruby/gems/3.0.0/gems/dory-1.1.1/lib/dory.rb:1:in `<top (required)>'
	from <internal:/usr/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb>:85:in `require'
	from <internal:/usr/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb>:85:in `require'
	from /usr/lib/ruby/gems/3.0.0/gems/dory-1.1.1/bin/dory:7:in `<top (required)>'
	from /usr/bin/dory:23:in `load'
	from /usr/bin/dory:23:in `<main>'

I can see that it's the only file that is not readable by any user

$ ls -la /usr/lib/ruby/gems/3.0.0/gems/dory-1.1.1/lib/dory/
total 68
drwxr-xr-x 3 root root 4096 29 avr 17:19 .
drwxr-xr-x 3 root root 4096 29 avr 17:19 ..
-rw-r----- 1 root root 4911 15 avr 18:55 config.rb
-rw-r--r-- 1 root root  711 15 avr 18:55 dinghy.rb
-rw-r--r-- 1 root root 7771 15 avr 18:55 dnsmasq.rb
-rw-r--r-- 1 root root 3154 15 avr 18:55 docker_service.rb
-rw-r--r-- 1 root root 1141 15 avr 18:55 os.rb
-rw-r--r-- 1 root root  763 15 avr 18:55 port_utils.rb
-rw-r--r-- 1 root root 1548 15 avr 18:55 proxy.rb
drwxr-xr-x 2 root root 4096 29 avr 17:19 resolv
-rw-r--r-- 1 root root  662 15 avr 18:55 resolv.rb
-rw-r--r-- 1 root root  582 15 avr 18:55 shell.rb
-rw-r--r-- 1 root root 1362 15 avr 18:55 systemd.rb
-rw-r--r-- 1 root root  545 15 avr 18:55 upgrade.rb
-rw-r--r-- 1 root root   93 15 avr 18:55 version.rb

if I run dory with sudo, it's working but I should not need it (only for the restart of network)

is the problem come from this gem or from the packaging to archlinux?