@BasicallyAKongger's comment on 'Perl script to grab all Marsey's off of this website and make it Pleroma friendly'

use strict;
use warnings;
use experimental 'smartmatch';

use Data::Dumper;
use JSON::XS;
use LWP::UserAgent;
use HTTP::Request;
my $json = JSON::XS->new->utf8->allow_nonref;
my $request = HTTP::Request->new(GET => 'https://rdrama.net/marsey_list.json');
my $ua = LWP::UserAgent->new;
$ua->agent("Mozillacels stay losing");

my $response = $ua->request($request);
die "Failed to fetch" unless defined $response;

sub contents_to_file($$)
{
        my ($filename, $content) = @_;
        open(my $fh, '>', $filename) or die "Couldn't open file $filename: $!";
        print $fh $$content;
        close $fh;
}

# Get emojis
my $emojos = $json->decode($response->content);
my %pack = (
        'files' => {},
        # empty?
        pack => {},
        files_count => 0,
);

# Case sensitive: 'Marsey', 'Misc', 'Wojak', 'Classic', 'Tay', 'Wolf', 'Marsey Alphabet', 'Platy', 'Marsey Flags', 'Rage', 'Flags', 'Sets'
my @categories = ('Marsey');

foreach my $emojo (@{$emojos})
{
        if ($emojo->{class} ~~ @categories)
        {
                $pack{'files'}->{$emojo->{name}} = $emojo->{name} . '.webp';
        }
}

$pack{files_count} = keys %{$pack{files}};

my $output = $json->encode(\%pack);
# Write content to file
contents_to_file 'pack.json', \$output;

I wrote it because I setup an Apache Reverse Proxy where I created a "fake" emoji-pack, where all the requests where Pleroma expects them just redirect to /e/{emojiname}.webp here :#marsey57: