Got it working; need to figure out CPAN build of Image::Magick

README.md

@@ -4,3 +4,13 @@ Various experiments to convert image files to avif
 
 ## Debian dependencies
 
+- libmagickcore-6-headers: /usr/include/ImageMagick-6/magick/MagickCore.h
+
+## Running it
+
+    ./image_magick/to_avif.pl images/me.png >> me.avif
+
+## TODOs
+
+- Debian build from CPAN fails, can't find MagickCore.h
+- Install `libimage-magick-perl` for now

image_magick/to_avif.pl

@@ -0,0 +1,18 @@
+#!/usr/bin/env perl
+
+use v5.36;
+use Image::Magick;
+
+unless ($ARGV[0]) {
+    say "give me image file, e.g.: $0 goatse.jpeg";
+    exit 64;
+}
+
+my $p    = Image::Magick->new;
+my $file = $ARGV[0];
+
+$p->Read($file);
+
+# Write to STDOUT instead of file
+binmode STDOUT;
+$p->Write('avif:-');