diff --git a/2023/07/Part1.pm b/2023/07/Part1.pm
new file mode 100644
index 0000000..c9b4e65
--- /dev/null
+++ b/2023/07/Part1.pm
@@ -0,0 +1,11 @@
+use 5.38.0;
+
+package Part1;
+
+use List::AllUtils qw/ /;
+
+sub solution_1 ($input) {
+    ...;
+}
+
+1;
diff --git a/2023/07/Part2.pm b/2023/07/Part2.pm
new file mode 100644
index 0000000..c907947
--- /dev/null
+++ b/2023/07/Part2.pm
@@ -0,0 +1,14 @@
+use 5.38.0;
+
+package Part2;
+
+use Part1;
+
+use List::AllUtils qw/ /;
+
+
+sub solution_2 ($input) {
+    ...;
+}
+
+1;
diff --git a/2023/07/benchmark.pl b/2023/07/benchmark.pl
new file mode 100644
index 0000000..36ab17c
--- /dev/null
+++ b/2023/07/benchmark.pl
@@ -0,0 +1,43 @@
+use 5.38.0;
+
+use Benchmark ':hireswallclock';
+use Path::Tiny;
+use JSON qw/ to_json /;
+use DateTime;
+use File::Serialize;
+
+use Part1;
+use Part2;
+
+my $day = path('.')->absolute->basename =~ s/^0//r;
+my $year = path('.')->absolute->parent->basename;
+my $solutions = deserialize_file('solutions.yml');
+
+my @parts = (
+    { part => 1, sub => \&Part1::solution_1, expected => $solutions->{1} },
+    { part => 2, sub => \&Part2::solution_2, expected => $solutions->{2} },
+);
+
+my $input = path('./input')->slurp;
+
+for my $part (@parts) {
+    my $res = Benchmark::countit(
+        10,
+        sub {
+            $part->{sub}->($input) == $part->{expected} or die;
+        }
+    );
+
+    my $result = {
+        day  => $day,
+        year => $year,
+
+        #variant => '',
+        language  => 'perl',
+        part      => $part->{part},
+        time      => $res->cpu_a / $res->iters,
+        timestamp => DateTime->now->iso8601,
+    };
+    say to_json $result;
+}
+
diff --git a/2023/07/part1.t b/2023/07/part1.t
new file mode 100644
index 0000000..ae7365e
--- /dev/null
+++ b/2023/07/part1.t
@@ -0,0 +1,13 @@
+use 5.38.0;
+
+use Test2::V0;
+
+use Path::Tiny;
+
+use Part1;
+
+my $input = path('input')->slurp;
+
+is Part1::solution_1($input) => 'TODO';
+
+done_testing;
diff --git a/2023/07/part2.t b/2023/07/part2.t
new file mode 100644
index 0000000..0401ccc
--- /dev/null
+++ b/2023/07/part2.t
@@ -0,0 +1,13 @@
+use 5.38.0;
+
+use Test2::V0;
+
+use Path::Tiny;
+
+use Part2;
+
+my $input = path('input')->slurp;
+
+is Part2::solution_2($input) => 'TODO';
+
+done_testing;
diff --git a/2023/07/solutions.yml b/2023/07/solutions.yml
new file mode 100644
index 0000000..67055f3
--- /dev/null
+++ b/2023/07/solutions.yml
@@ -0,0 +1,2 @@
+1: TODO
+2: TODO
diff --git a/2023/preset/day/templates/perl/benchmark.pl b/2023/preset/day/templates/perl/benchmark.pl
index fcf3e70..36ab17c 100644
--- a/2023/preset/day/templates/perl/benchmark.pl
+++ b/2023/preset/day/templates/perl/benchmark.pl
@@ -4,16 +4,18 @@ use Benchmark ':hireswallclock';
 use Path::Tiny;
 use JSON qw/ to_json /;
 use DateTime;
+use File::Serialize;
 
 use Part1;
 use Part2;
 
 my $day = path('.')->absolute->basename =~ s/^0//r;
 my $year = path('.')->absolute->parent->basename;
+my $solutions = deserialize_file('solutions.yml');
 
 my @parts = (
-    { part => 1, sub => \&Part1::solution_1, expected => 'TODO' },
-    { part => 2, sub => \&Part2::solution_2, expected => 'TODO' },
+    { part => 1, sub => \&Part1::solution_1, expected => $solutions->{1} },
+    { part => 2, sub => \&Part2::solution_2, expected => $solutions->{2} },
 );
 
 my $input = path('./input')->slurp;