diff --git a/lib/Dancer2/ConfigReader.pm b/lib/Dancer2/ConfigReader.pm
index 2d77b89c6..273400b3e 100644
--- a/lib/Dancer2/ConfigReader.pm
+++ b/lib/Dancer2/ConfigReader.pm
@@ -63,7 +63,6 @@ has environment => (
 has config_readers => (
     is      => 'ro',
     lazy    => 1,
-    #isa     => ArrayRef[ InstanceOf['Dancer2::Core::Role::ConfigReader'] ],
     isa     => ArrayRef,
     builder => '_build_config_readers',
 );
@@ -73,7 +72,6 @@ sub _build_config {
     my ($self) = @_;
 
     my $default  = $self->default_config;
-    use Data::Dumper;
     my $config = Hash::Merge::Simple->merge(
         $default,
         map {
diff --git a/lib/Dancer2/Core/App.pm b/lib/Dancer2/Core/App.pm
index 7bab282f2..6e242bda4 100644
--- a/lib/Dancer2/Core/App.pm
+++ b/lib/Dancer2/Core/App.pm
@@ -445,17 +445,6 @@ sub _build_config {
     return $config;
 }
 
-# around _build_config => sub {
-#     my ( $orig, $self ) = @_;
-#     my $config          = $self->$orig;
-#
-#     if ( $config && $config->{'engines'} ) {
-#         $self->_validate_engine($_) for keys %{ $config->{'engines'} };
-#     }
-#
-#     return $config;
-# };
-
 sub _build_response {
     my $self = shift;
     return Dancer2::Core::Response->new(
diff --git a/lib/Dancer2/Core/Role/HasConfig.pm b/lib/Dancer2/Core/Role/HasConfig.pm
index 50eb084e0..f506396f6 100644
--- a/lib/Dancer2/Core/Role/HasConfig.pm
+++ b/lib/Dancer2/Core/Role/HasConfig.pm
@@ -77,18 +77,6 @@ sub _set_config_entry {
     $self->config->{$name} = $value;
 }
 
-# Who calls this method?
-# sub _compile_config {
-#     my ( $self, $config ) = @_;
-#
-#     foreach my $key ( keys %{$config} ) {
-#         my $value = $config->{$key};
-#         $config->{$key} =
-#           $self->_compile_config_entry( $key, $value, $config );
-#     }
-#     return $config;
-# }
-
 sub settings { shift->config }
 
 sub setting {