diff --git a/config/php/fpm/standardebooks.org.conf b/config/php/fpm/standardebooks.org.conf
index e7867cec..9398f2a3 100644
--- a/config/php/fpm/standardebooks.org.conf
+++ b/config/php/fpm/standardebooks.org.conf
@@ -16,3 +16,4 @@ slowlog = /var/log/local/php-fpm-slow.log
 catch_workers_output = yes
 
 php_admin_value[include_path] = /standardebooks.org/web/lib
+php_admin_value[auto_prepend_file] = Core.php
diff --git a/config/php/fpm/standardebooks.test.conf b/config/php/fpm/standardebooks.test.conf
index 230c05f3..3d15eca6 100644
--- a/config/php/fpm/standardebooks.test.conf
+++ b/config/php/fpm/standardebooks.test.conf
@@ -16,3 +16,4 @@ slowlog = /var/log/local/php-fpm-slow.log
 catch_workers_output = yes
 
 php_admin_value[include_path] = /standardebooks.org/web/lib:/standardebooks.org/web/vendor
+php_admin_value[auto_prepend_file] = Core.php
diff --git a/www/404.php b/www/404.php
index 98cedf35..2004cf69 100644
--- a/www/404.php
+++ b/www/404.php
@@ -1,7 +1,4 @@
-<?
-require_once('Core.php');
-
-?><?= Template::Header(['title' => 'We Couldn’t Find That Document', 'highlight' => '', 'description' => 'We couldn’t find that document.', 'is404' => true]) ?>
+<?= Template::Header(['title' => 'We Couldn’t Find That Document', 'highlight' => '', 'description' => 'We couldn’t find that document.', 'is404' => true]) ?>
 <main>
 	<section class="narrow has-hero">
 		<hgroup>
diff --git a/www/451.php b/www/451.php
index dbba9d6a..9db0a022 100644
--- a/www/451.php
+++ b/www/451.php
@@ -1,7 +1,4 @@
-<?
-require_once('Core.php');
-
-?><?= Template::Header(['title' => 'This Ebook Is No Longer Available', 'highlight' => '', 'description' => 'This ebook is unavailable due to legal reasons.']) ?>
+<?= Template::Header(['title' => 'This Ebook Is No Longer Available', 'highlight' => '', 'description' => 'This ebook is unavailable due to legal reasons.']) ?>
 <main>
 	<section class="narrow has-hero">
 		<hgroup>
diff --git a/www/about/index.php b/www/about/index.php
index a1b05661..f30e38b6 100644
--- a/www/about/index.php
+++ b/www/about/index.php
@@ -1,6 +1,4 @@
 <?
-require_once('Core.php');
-
 $patronsCircle = [];
 $anonymousPatronCount = 0;
 
diff --git a/www/about/our-goals.php b/www/about/our-goals.php
index 64677b07..aa19b31d 100644
--- a/www/about/our-goals.php
+++ b/www/about/our-goals.php
@@ -1,6 +1,4 @@
-<?
-require_once('Core.php');
-?><?= Template::Header(['title' => 'Our goals', 'highlight' => 'about', 'description' => 'The goals of Standard Ebooks.']) ?>
+<?= Template::Header(['title' => 'Our goals', 'highlight' => 'about', 'description' => 'The goals of Standard Ebooks.']) ?>
 <main>
 	<article>
 		<h1>Our Goals</h1>
diff --git a/www/about/standard-ebooks-and-the-public-domain.php b/www/about/standard-ebooks-and-the-public-domain.php
index 226344ea..f04449f7 100644
--- a/www/about/standard-ebooks-and-the-public-domain.php
+++ b/www/about/standard-ebooks-and-the-public-domain.php
@@ -1,6 +1,4 @@
-<?
-require_once('Core.php');
-?><?= Template::Header(['title' => 'Standard Ebooks and the public domain', 'highlight' => 'about', 'description' => 'The Standard Ebooks’ philosophy on copyright and the public domain.']) ?>
+<?= Template::Header(['title' => 'Standard Ebooks and the public domain', 'highlight' => 'about', 'description' => 'The Standard Ebooks’ philosophy on copyright and the public domain.']) ?>
 <main>
 	<article>
 		<h1>Standard Ebooks and the public domain</h1>
diff --git a/www/about/what-makes-standard-ebooks-different.php b/www/about/what-makes-standard-ebooks-different.php
index 49ac50fb..8277b741 100644
--- a/www/about/what-makes-standard-ebooks-different.php
+++ b/www/about/what-makes-standard-ebooks-different.php
@@ -1,6 +1,4 @@
-<?
-require_once('Core.php');
-?><?= Template::Header(['title' => 'What makes Standard Ebooks different', 'highlight' => 'about', 'description' => 'How Standard Ebooks differs from other free ebook projects.']) ?>
+<?= Template::Header(['title' => 'What makes Standard Ebooks different', 'highlight' => 'about', 'description' => 'How Standard Ebooks differs from other free ebook projects.']) ?>
 <main>
 	<article>
 		<h1>What makes Standard Ebooks different</h1>
diff --git a/www/bulk-downloads/collection.php b/www/bulk-downloads/collection.php
index 605efbf0..d2f8d73c 100644
--- a/www/bulk-downloads/collection.php
+++ b/www/bulk-downloads/collection.php
@@ -1,6 +1,4 @@
 <?
-require_once('Core.php');
-
 use function Safe\apcu_fetch;
 use function Safe\preg_replace;
 
diff --git a/www/bulk-downloads/download.php b/www/bulk-downloads/download.php
index a7fb3395..5d90d3b8 100644
--- a/www/bulk-downloads/download.php
+++ b/www/bulk-downloads/download.php
@@ -1,6 +1,4 @@
 <?
-require_once('Core.php');
-
 use function Safe\preg_match;
 
 $path = HttpInput::Str(GET, 'path', false) ?? '';
diff --git a/www/bulk-downloads/get.php b/www/bulk-downloads/get.php
index 45c0b371..64ab1746 100644
--- a/www/bulk-downloads/get.php
+++ b/www/bulk-downloads/get.php
@@ -1,6 +1,4 @@
 <?
-require_once('Core.php');
-
 use function Safe\apcu_fetch;
 
 $collection = null;
diff --git a/www/bulk-downloads/index.php b/www/bulk-downloads/index.php
index 63a5a9c4..376dba4f 100644
--- a/www/bulk-downloads/index.php
+++ b/www/bulk-downloads/index.php
@@ -1,6 +1,4 @@
 <?
-require_once('Core.php');
-
 $canDownload = false;
 if($GLOBALS['User'] !== null && $GLOBALS['User']->Benefits->CanBulkDownload){
 	$canDownload = true;
diff --git a/www/collections/index.php b/www/collections/index.php
index b5874157..0be79123 100644
--- a/www/collections/index.php
+++ b/www/collections/index.php
@@ -1,6 +1,4 @@
 <?
-require_once('Core.php');
-
 $collections = Library::GetEbookCollections();
 
 ?><?= Template::Header(['title' => 'Ebook Collections', 'highlight' => '', 'description' => 'Browse collections of Standard Ebooks.']) ?>
diff --git a/www/contribute/a-basic-standard-ebooks-source-folder.php b/www/contribute/a-basic-standard-ebooks-source-folder.php
index b764389f..76efa9e0 100644
--- a/www/contribute/a-basic-standard-ebooks-source-folder.php
+++ b/www/contribute/a-basic-standard-ebooks-source-folder.php
@@ -1,6 +1,4 @@
-<?
-require_once('Core.php');
-?><?= Template::Header(['title' => 'A Basic Standard Ebooks Source Folder', 'manual' => true, 'highlight' => 'contribute', 'description' => 'All Standard Ebooks source folders have the same basic structure, described here.']) ?>
+<?= Template::Header(['title' => 'A Basic Standard Ebooks Source Folder', 'manual' => true, 'highlight' => 'contribute', 'description' => 'All Standard Ebooks source folders have the same basic structure, described here.']) ?>
 <main>
 	<article id="a-basic-standard-ebooks-source-folder">
 		<h1>A Basic Standard Ebooks Source Folder</h1>
diff --git a/www/contribute/collections-policy.php b/www/contribute/collections-policy.php
index 433e3ab9..9055d53d 100644
--- a/www/contribute/collections-policy.php
+++ b/www/contribute/collections-policy.php
@@ -1,6 +1,4 @@
-<?
-require_once('Core.php');
-?><?= Template::Header(['title' => 'Collections Policy', 'highlight' => 'contribute', 'description' => 'Standard Ebooks only accepts certain kinds of ebooks for production and hosting. This is the full list.']) ?>
+<?= Template::Header(['title' => 'Collections Policy', 'highlight' => 'contribute', 'description' => 'Standard Ebooks only accepts certain kinds of ebooks for production and hosting. This is the full list.']) ?>
 <main>
 	<article>
 		<hgroup>
diff --git a/www/contribute/how-tos/common-issues-when-working-on-public-domain-ebooks.php b/www/contribute/how-tos/common-issues-when-working-on-public-domain-ebooks.php
index e9e22942..14c1d460 100644
--- a/www/contribute/how-tos/common-issues-when-working-on-public-domain-ebooks.php
+++ b/www/contribute/how-tos/common-issues-when-working-on-public-domain-ebooks.php
@@ -1,6 +1,4 @@
-<?
-require_once('Core.php');
-?><?= Template::Header(['title' => 'Common Issues When Working on Public Domain Ebooks', 'manual' => true, 'highlight' => 'contribute', 'description' => 'A list of common issues encountered when converting from public domain transcriptions.']) ?>
+<?= Template::Header(['title' => 'Common Issues When Working on Public Domain Ebooks', 'manual' => true, 'highlight' => 'contribute', 'description' => 'A list of common issues encountered when converting from public domain transcriptions.']) ?>
 <main>
 	<article>
 		<h1>Common Issues When Working on Public Domain Ebooks</h1>
diff --git a/www/contribute/how-tos/how-to-add-a-standard-ebooks-ebook-to-goodreads.php b/www/contribute/how-tos/how-to-add-a-standard-ebooks-ebook-to-goodreads.php
index 21f0fcbe..b18926f4 100644
--- a/www/contribute/how-tos/how-to-add-a-standard-ebooks-ebook-to-goodreads.php
+++ b/www/contribute/how-tos/how-to-add-a-standard-ebooks-ebook-to-goodreads.php
@@ -1,6 +1,4 @@
-<?
-require_once('Core.php');
-?><?= Template::Header(['title' => 'How to Add a Standard Ebooks book to Goodreads', 'manual' => true, 'highlight' => 'contribute', 'description' => 'A guide to add a Standard Ebook edition of a book to the Goodreads website.']) ?>
+<?= Template::Header(['title' => 'How to Add a Standard Ebooks book to Goodreads', 'manual' => true, 'highlight' => 'contribute', 'description' => 'A guide to add a Standard Ebook edition of a book to the Goodreads website.']) ?>
 <main class="manual">
 	<article class="step-by-step-guide">
 		<h1>How to Add a Standard Ebooks Ebook to Goodreads</h1>
diff --git a/www/contribute/how-tos/how-to-create-figures-for-music-scores.php b/www/contribute/how-tos/how-to-create-figures-for-music-scores.php
index 7b5e20fe..4fa82749 100644
--- a/www/contribute/how-tos/how-to-create-figures-for-music-scores.php
+++ b/www/contribute/how-tos/how-to-create-figures-for-music-scores.php
@@ -1,6 +1,4 @@
-<?
-require_once('Core.php');
-?><?= Template::Header(['title' => 'How to create figures for music scores', 'manual' => true, 'highlight' => 'contribute', 'description' => 'A guide to producing SVG figures of music notation.']) ?>
+<?= Template::Header(['title' => 'How to create figures for music scores', 'manual' => true, 'highlight' => 'contribute', 'description' => 'A guide to producing SVG figures of music notation.']) ?>
 <main class="manual">
 	<article class="step-by-step-guide">
 		<h1>How to create figures for music scores</h1>
diff --git a/www/contribute/how-tos/how-to-produce-a-shakespeare-play.php b/www/contribute/how-tos/how-to-produce-a-shakespeare-play.php
index 1924172d..30253a1c 100644
--- a/www/contribute/how-tos/how-to-produce-a-shakespeare-play.php
+++ b/www/contribute/how-tos/how-to-produce-a-shakespeare-play.php
@@ -1,6 +1,4 @@
-<?
-require_once('Core.php');
-?><?= Template::Header(['title' => 'How to Produce a Shakespeare Play', 'manual' => true, 'highlight' => 'contribute', 'description' => 'A guide to producing any play by William Shakespeare.']) ?>
+<?= Template::Header(['title' => 'How to Produce a Shakespeare Play', 'manual' => true, 'highlight' => 'contribute', 'description' => 'A guide to producing any play by William Shakespeare.']) ?>
 <main class="manual">
 	<article class="step-by-step-guide">
 		<h1>How to Produce a Shakespeare Play</h1>
diff --git a/www/contribute/how-tos/how-to-review-an-ebook-production-for-publication.php b/www/contribute/how-tos/how-to-review-an-ebook-production-for-publication.php
index e0961dfa..505447f4 100644
--- a/www/contribute/how-tos/how-to-review-an-ebook-production-for-publication.php
+++ b/www/contribute/how-tos/how-to-review-an-ebook-production-for-publication.php
@@ -1,6 +1,4 @@
-<?
-require_once('Core.php');
-?><?= Template::Header(['title' => 'How to Review an Ebook Production for Publication', 'manual' => true, 'highlight' => 'contribute', 'description' => 'A guide to proofread and review an ebook production for publication.']) ?>
+<?= Template::Header(['title' => 'How to Review an Ebook Production for Publication', 'manual' => true, 'highlight' => 'contribute', 'description' => 'A guide to proofread and review an ebook production for publication.']) ?>
 <main class="manual">
 	<article class="step-by-step-guide">
 		<h1>How to Review an Ebook Production for Publication</h1>
diff --git a/www/contribute/how-tos/index.php b/www/contribute/how-tos/index.php
index ae7d1f86..517f1331 100644
--- a/www/contribute/how-tos/index.php
+++ b/www/contribute/how-tos/index.php
@@ -1,6 +1,4 @@
-<?
-require_once('Core.php');
-?><?= Template::Header(['title' => 'How-to Guides For Difficult Productions', 'manual' => true, 'highlight' => 'contribute', 'description' => 'Guides on how to produce more difficult productions.']) ?>
+<?= Template::Header(['title' => 'How-to Guides For Difficult Productions', 'manual' => true, 'highlight' => 'contribute', 'description' => 'Guides on how to produce more difficult productions.']) ?>
 <main>
 <article>
 	<h1>How-to Guides</h1>
diff --git a/www/contribute/index.php b/www/contribute/index.php
index b55c4b2a..70e48821 100644
--- a/www/contribute/index.php
+++ b/www/contribute/index.php
@@ -1,6 +1,4 @@
-<?
-require_once('Core.php');
-?><?= Template::Header(['title' => 'Get Involved', 'highlight' => 'contribute', 'description' => 'Details on how to contribute your time and talent to the volunteer-driven Standard Ebooks project.']) ?>
+<?= Template::Header(['title' => 'Get Involved', 'highlight' => 'contribute', 'description' => 'Details on how to contribute your time and talent to the volunteer-driven Standard Ebooks project.']) ?>
 <main>
 	<article>
 		<h1>Get Involved</h1>
diff --git a/www/contribute/producers.php b/www/contribute/producers.php
index c01c6e87..5b8625d1 100644
--- a/www/contribute/producers.php
+++ b/www/contribute/producers.php
@@ -1,6 +1,4 @@
-<?
-require_once('Core.php');
-?><?= Template::Header(['title' => 'Producing an ebook for Standard Ebooks', 'highlight' => 'contribute', 'description' => 'A high-level outline of the process of producing an ebook for Standard Ebooks.']) ?>
+<?= Template::Header(['title' => 'Producing an ebook for Standard Ebooks', 'highlight' => 'contribute', 'description' => 'A high-level outline of the process of producing an ebook for Standard Ebooks.']) ?>
 <main>
 	<article>
 		<h1>Producing an ebook for Standard Ebooks</h1>
diff --git a/www/contribute/producing-an-ebook-step-by-step.php b/www/contribute/producing-an-ebook-step-by-step.php
index ca66c367..2334431d 100644
--- a/www/contribute/producing-an-ebook-step-by-step.php
+++ b/www/contribute/producing-an-ebook-step-by-step.php
@@ -1,6 +1,4 @@
-<?
-require_once('Core.php');
-?><?= Template::Header(['title' => 'Producing an Ebook, Step by Step', 'manual' => true, 'highlight' => 'contribute', 'description' => 'A detailed step-by-step description of the complete process of producing an ebook for Standard Ebooks, start to finish.']) ?>
+<?= Template::Header(['title' => 'Producing an Ebook, Step by Step', 'manual' => true, 'highlight' => 'contribute', 'description' => 'A detailed step-by-step description of the complete process of producing an ebook for Standard Ebooks, start to finish.']) ?>
 <main class="manual">
 	<article class="step-by-step-guide">
 		<h1>Producing an Ebook, Step by Step</h1>
diff --git a/www/contribute/report-errors-upstream.php b/www/contribute/report-errors-upstream.php
index cd862c44..06095ef3 100644
--- a/www/contribute/report-errors-upstream.php
+++ b/www/contribute/report-errors-upstream.php
@@ -1,6 +1,4 @@
-<?
-require_once('Core.php');
-?><?= Template::Header(['title' => 'Report Errors Upstream', 'highlight' => 'contribute', 'description' => 'Our guide to reporting errors to Gutenberg and other sources.']) ?>
+<?= Template::Header(['title' => 'Report Errors Upstream', 'highlight' => 'contribute', 'description' => 'Our guide to reporting errors to Gutenberg and other sources.']) ?>
 <main>
 	<article>
 		<h1>Report Errors Upstream</h1>
diff --git a/www/contribute/report-errors.php b/www/contribute/report-errors.php
index 29a52f02..a146c975 100644
--- a/www/contribute/report-errors.php
+++ b/www/contribute/report-errors.php
@@ -1,6 +1,4 @@
-<?
-require_once('Core.php');
-?><?= Template::Header(['title' => 'Report Errors', 'highlight' => 'contribute', 'description' => 'How to report a typo or error you’ve found in a Standard Ebooks ebook.']) ?>
+<?= Template::Header(['title' => 'Report Errors', 'highlight' => 'contribute', 'description' => 'How to report a typo or error you’ve found in a Standard Ebooks ebook.']) ?>
 <main>
 	<article>
 		<h1>Report Errors</h1>
diff --git a/www/contribute/tips-for-editors-and-proofreaders.php b/www/contribute/tips-for-editors-and-proofreaders.php
index 58bed536..90e25ff3 100644
--- a/www/contribute/tips-for-editors-and-proofreaders.php
+++ b/www/contribute/tips-for-editors-and-proofreaders.php
@@ -1,6 +1,4 @@
-<?
-require_once('Core.php');
-?><?= Template::Header(['title' => 'Tips for Editors and Proofreaders', 'manual' => true, 'highlight' => 'contribute', 'description' => 'A list of tips and tricks for people who’d like to proofread a Standard Ebooks ebook.']) ?>
+<?= Template::Header(['title' => 'Tips for Editors and Proofreaders', 'manual' => true, 'highlight' => 'contribute', 'description' => 'A list of tips and tricks for people who’d like to proofread a Standard Ebooks ebook.']) ?>
 <main>
 	<article>
 		<h1>Tips for Editors and Proofreaders</h1>
diff --git a/www/contribute/uncategorized-art-resources.php b/www/contribute/uncategorized-art-resources.php
index 481b06ba..c7b4d0ee 100644
--- a/www/contribute/uncategorized-art-resources.php
+++ b/www/contribute/uncategorized-art-resources.php
@@ -1,6 +1,4 @@
-<?
-require_once('Core.php');
-?><?= Template::Header(['title' => 'Uncategorized Art Resources', 'highlight' => 'contribute', 'description' => 'A list of US-PD art books for use when conducting cover art research.']) ?>
+<?= Template::Header(['title' => 'Uncategorized Art Resources', 'highlight' => 'contribute', 'description' => 'A list of US-PD art books for use when conducting cover art research.']) ?>
 <main>
 	<article id="a-basic-standard-ebooks-source-folder">
 		<h1>Uncategorized art books</h1>
diff --git a/www/contribute/wanted-ebooks.php b/www/contribute/wanted-ebooks.php
index 8dc91517..65a16d53 100644
--- a/www/contribute/wanted-ebooks.php
+++ b/www/contribute/wanted-ebooks.php
@@ -1,6 +1,4 @@
-<?
-require_once('Core.php');
-?><?= Template::Header(['title' => 'Wanted Ebooks', 'highlight' => 'contribute', 'description' => 'A list of ebooks the Standard Ebooks editor would like to see produced, including suggestions for first-time producers.']) ?>
+<?= Template::Header(['title' => 'Wanted Ebooks', 'highlight' => 'contribute', 'description' => 'A list of ebooks the Standard Ebooks editor would like to see produced, including suggestions for first-time producers.']) ?>
 <main>
 	<article>
 		<h1>Wanted Ebooks</h1>
diff --git a/www/donate/index.php b/www/donate/index.php
index f2b34a9b..0c353ec8 100644
--- a/www/donate/index.php
+++ b/www/donate/index.php
@@ -1,6 +1,4 @@
 <?
-require_once('Core.php');
-
 $newsletterSubscriberCount = floor(Db::QueryInt('
 						SELECT count(*)
 						from NewsletterSubscriptions
diff --git a/www/ebooks/author.php b/www/ebooks/author.php
index 2e9db621..448d0f9f 100644
--- a/www/ebooks/author.php
+++ b/www/ebooks/author.php
@@ -1,6 +1,4 @@
 <?
-require_once('Core.php');
-
 $ebooks = [];
 $author = '';
 $authorUrl = '';
diff --git a/www/ebooks/ebook.php b/www/ebooks/ebook.php
index 4eec0f54..6f347706 100644
--- a/www/ebooks/ebook.php
+++ b/www/ebooks/ebook.php
@@ -1,6 +1,4 @@
 <?
-require_once('Core.php');
-
 // See https://developers.google.com/search/docs/data-types/book for RDFa metadata details
 
 use function Safe\preg_match;
diff --git a/www/ebooks/index.php b/www/ebooks/index.php
index ddb8b5e4..baf84426 100644
--- a/www/ebooks/index.php
+++ b/www/ebooks/index.php
@@ -1,6 +1,4 @@
 <?
-require_once('Core.php');
-
 use function Safe\preg_replace;
 
 try{
diff --git a/www/feeds/401.php b/www/feeds/401.php
index d62b2801..3fa4e793 100644
--- a/www/feeds/401.php
+++ b/www/feeds/401.php
@@ -1,6 +1,4 @@
 <?
-require_once('Core.php');
-
 use function Safe\preg_match;
 
 $type = '';
diff --git a/www/feeds/atom/index.php b/www/feeds/atom/index.php
index 2f7f52c4..2f389fd7 100644
--- a/www/feeds/atom/index.php
+++ b/www/feeds/atom/index.php
@@ -1,7 +1,4 @@
-<?
-require_once('Core.php');
-
-?><?= Template::Header(['title' => 'Atom 1.0 Ebook Feeds', 'description' => 'A list of available Atom 1.0 feeds of Standard Ebooks ebooks.']) ?>
+<?= Template::Header(['title' => 'Atom 1.0 Ebook Feeds', 'description' => 'A list of available Atom 1.0 feeds of Standard Ebooks ebooks.']) ?>
 <main>
 	<section class="narrow">
 		<h1>Atom 1.0 Ebook Feeds</h1>
diff --git a/www/feeds/atom/search.php b/www/feeds/atom/search.php
index fc2214cb..27dc59e6 100644
--- a/www/feeds/atom/search.php
+++ b/www/feeds/atom/search.php
@@ -1,5 +1,4 @@
 <?
-require_once('Core.php');
 use Safe\DateTime;
 
 $ebooks = [];
diff --git a/www/feeds/atom/style.php b/www/feeds/atom/style.php
index 83111d9f..72b81f7d 100644
--- a/www/feeds/atom/style.php
+++ b/www/feeds/atom/style.php
@@ -1,6 +1,4 @@
 <?
-require_once('Core.php');
-
 $http = new HTTP2();
 
 $contentType = [
diff --git a/www/feeds/collection.php b/www/feeds/collection.php
index f470bea5..891177b4 100644
--- a/www/feeds/collection.php
+++ b/www/feeds/collection.php
@@ -1,6 +1,4 @@
 <?
-require_once('Core.php');
-
 use function Safe\apcu_fetch;
 use function Safe\glob;
 use function Safe\preg_replace;
diff --git a/www/feeds/download.php b/www/feeds/download.php
index bc27581e..505a5cb7 100644
--- a/www/feeds/download.php
+++ b/www/feeds/download.php
@@ -1,6 +1,4 @@
 <?
-require_once('Core.php');
-
 use function Safe\preg_match;
 
 // This page is blocked by HTTP Basic auth.
diff --git a/www/feeds/get.php b/www/feeds/get.php
index 5d2038b0..8bf9a76c 100644
--- a/www/feeds/get.php
+++ b/www/feeds/get.php
@@ -1,6 +1,4 @@
 <?
-require_once('Core.php');
-
 $author = HttpInput::Str(GET, 'author', false);
 $collection = HttpInput::Str(GET, 'collection', false);
 $name = null;
diff --git a/www/feeds/index.php b/www/feeds/index.php
index adba00a4..31244fc0 100644
--- a/www/feeds/index.php
+++ b/www/feeds/index.php
@@ -1,7 +1,4 @@
-<?
-require_once('Core.php');
-
-?><?= Template::Header(['title' => 'Ebook Feeds', 'description' => 'A list of available feeds of Standard Ebooks ebooks.']) ?>
+<?= Template::Header(['title' => 'Ebook Feeds', 'description' => 'A list of available feeds of Standard Ebooks ebooks.']) ?>
 <main>
 	<section class="narrow has-hero">
 		<h1>Ebook Feeds</h1>
diff --git a/www/feeds/opds/search.php b/www/feeds/opds/search.php
index 63977697..f3ea151c 100644
--- a/www/feeds/opds/search.php
+++ b/www/feeds/opds/search.php
@@ -1,5 +1,4 @@
 <?
-require_once('Core.php');
 use Safe\DateTime;
 
 $ebooks = [];
diff --git a/www/feeds/opds/style.php b/www/feeds/opds/style.php
index e8fd0709..d5135a13 100644
--- a/www/feeds/opds/style.php
+++ b/www/feeds/opds/style.php
@@ -1,6 +1,4 @@
 <?
-require_once('Core.php');
-
 $http = new HTTP2();
 
 $contentType = [
diff --git a/www/feeds/rss/index.php b/www/feeds/rss/index.php
index 2ac45609..2d3f1083 100644
--- a/www/feeds/rss/index.php
+++ b/www/feeds/rss/index.php
@@ -1,7 +1,4 @@
-<?
-require_once('Core.php');
-
-?><?= Template::Header(['title' => 'RSS 2.0 Ebook Feeds', 'description' => 'A list of available RSS 2.0 feeds of Standard Ebooks ebooks.']) ?>
+<?= Template::Header(['title' => 'RSS 2.0 Ebook Feeds', 'description' => 'A list of available RSS 2.0 feeds of Standard Ebooks ebooks.']) ?>
 <main>
 	<section class="narrow">
 		<h1>RSS 2.0 Ebook Feeds</h1>
diff --git a/www/feeds/rss/search.php b/www/feeds/rss/search.php
index b23cfb9c..82aaaa15 100644
--- a/www/feeds/rss/search.php
+++ b/www/feeds/rss/search.php
@@ -1,5 +1,4 @@
 <?
-require_once('Core.php');
 use Safe\DateTime;
 
 $ebooks = [];
diff --git a/www/feeds/rss/style.php b/www/feeds/rss/style.php
index 1d60ddca..23c6755e 100644
--- a/www/feeds/rss/style.php
+++ b/www/feeds/rss/style.php
@@ -1,6 +1,4 @@
 <?
-require_once('Core.php');
-
 $http = new HTTP2();
 
 $contentType = [
diff --git a/www/help/how-to-use-our-ebooks.php b/www/help/how-to-use-our-ebooks.php
index bd668c5a..3a56bf1c 100644
--- a/www/help/how-to-use-our-ebooks.php
+++ b/www/help/how-to-use-our-ebooks.php
@@ -1,6 +1,4 @@
-<?
-require_once('Core.php');
-?><?= Template::Header(['title' => 'How to Use Our Ebooks', 'highlight' => 'contribute', 'manual' => true, 'description' => 'Help, tips, and tricks for using the ebook files you download from Standard Ebooks.']) ?>
+<?= Template::Header(['title' => 'How to Use Our Ebooks', 'highlight' => 'contribute', 'manual' => true, 'description' => 'Help, tips, and tricks for using the ebook files you download from Standard Ebooks.']) ?>
 <main>
 	<article>
 		<h1>How to Use Our Ebooks</h1>
diff --git a/www/images/captcha.php b/www/images/captcha.php
index 3534bc54..fc783bf8 100644
--- a/www/images/captcha.php
+++ b/www/images/captcha.php
@@ -1,10 +1,7 @@
 <?
 use function Safe\session_unset;
-
 use Gregwar\Captcha\CaptchaBuilder;
 
-require_once('Core.php');
-
 session_start();
 
 header('Content-type: image/jpeg');
diff --git a/www/index.php b/www/index.php
index b17bb930..e1624a85 100644
--- a/www/index.php
+++ b/www/index.php
@@ -1,6 +1,4 @@
-<?
-require_once('Core.php');
-?><?= Template::Header(['description' => 'Free and liberated ebooks, carefully produced for the true book lover. Download free ebooks with professional-quality formatting and typography, in formats compatible with your ereader.']) ?>
+<?= Template::Header(['description' => 'Free and liberated ebooks, carefully produced for the true book lover. Download free ebooks with professional-quality formatting and typography, in formats compatible with your ereader.']) ?>
 <main class="front-page">
 	<h1>Free and liberated ebooks,<br/> carefully produced for the true book lover.</h1>
 	<picture>
diff --git a/www/manual/index.php b/www/manual/index.php
index fe1ff054..9b645187 100644
--- a/www/manual/index.php
+++ b/www/manual/index.php
@@ -1,5 +1,4 @@
 <?
-require_once('Core.php');
 use function Safe\glob;
 use function Safe\preg_replace;
 use function Safe\sort;
diff --git a/www/newsletter/subscriptions/confirm.php b/www/newsletter/subscriptions/confirm.php
index 7edb7ca5..171baf92 100644
--- a/www/newsletter/subscriptions/confirm.php
+++ b/www/newsletter/subscriptions/confirm.php
@@ -1,6 +1,4 @@
 <?
-require_once('Core.php');
-
 session_start();
 
 $subscription = new NewsletterSubscription();
diff --git a/www/newsletter/subscriptions/delete.php b/www/newsletter/subscriptions/delete.php
index 830f3afe..feda432b 100644
--- a/www/newsletter/subscriptions/delete.php
+++ b/www/newsletter/subscriptions/delete.php
@@ -1,6 +1,4 @@
 <?
-require_once('Core.php');
-
 use function Safe\preg_match;
 
 $requestType = HttpInput::RequestType();
diff --git a/www/newsletter/subscriptions/get.php b/www/newsletter/subscriptions/get.php
index 8aa12f75..9c336ebc 100644
--- a/www/newsletter/subscriptions/get.php
+++ b/www/newsletter/subscriptions/get.php
@@ -1,6 +1,4 @@
 <?
-require_once('Core.php');
-
 use function \Safe\session_unset;
 
 session_start();
diff --git a/www/newsletter/subscriptions/new.php b/www/newsletter/subscriptions/new.php
index 0f6224ff..213ad3f5 100644
--- a/www/newsletter/subscriptions/new.php
+++ b/www/newsletter/subscriptions/new.php
@@ -1,6 +1,4 @@
 <?
-require_once('Core.php');
-
 use function Safe\session_unset;
 
 session_start();
diff --git a/www/newsletter/subscriptions/post.php b/www/newsletter/subscriptions/post.php
index bf8d0159..f056992c 100644
--- a/www/newsletter/subscriptions/post.php
+++ b/www/newsletter/subscriptions/post.php
@@ -1,6 +1,4 @@
 <?
-require_once('Core.php');
-
 use Ramsey\Uuid\Uuid;
 use function Safe\session_unset;
 
diff --git a/www/newsletter/subscriptions/success.php b/www/newsletter/subscriptions/success.php
index f209e5a6..36311357 100644
--- a/www/newsletter/subscriptions/success.php
+++ b/www/newsletter/subscriptions/success.php
@@ -1,6 +1,4 @@
 <?
-require_once('Core.php');
-
 // We use a 'succes' page and don't redirect directly to the vote ID resource, because
 // we don't want to reveal the vote ID to the web browser. It should only be sent via email
 // confirmation link.
diff --git a/www/polls/get.php b/www/polls/get.php
index faf7f41a..8ac68e06 100644
--- a/www/polls/get.php
+++ b/www/polls/get.php
@@ -1,6 +1,4 @@
 <?
-require_once('Core.php');
-
 use Safe\DateTime;
 
 $poll = new Poll();
diff --git a/www/polls/index.php b/www/polls/index.php
index a27ec646..2076e977 100644
--- a/www/polls/index.php
+++ b/www/polls/index.php
@@ -1,6 +1,4 @@
 <?
-require_once('Core.php');
-
 $pastPolls = Db::Query('
 			SELECT *
 			from Polls
diff --git a/www/polls/votes/get.php b/www/polls/votes/get.php
index a6d8c8dd..11e53eec 100644
--- a/www/polls/votes/get.php
+++ b/www/polls/votes/get.php
@@ -1,6 +1,4 @@
 <?
-require_once('Core.php');
-
 use function Safe\session_unset;
 
 session_start();
diff --git a/www/polls/votes/index.php b/www/polls/votes/index.php
index d8580944..63780830 100644
--- a/www/polls/votes/index.php
+++ b/www/polls/votes/index.php
@@ -1,6 +1,4 @@
 <?
-require_once('Core.php');
-
 $poll = new Poll();
 
 try{
diff --git a/www/polls/votes/new.php b/www/polls/votes/new.php
index 33129c0f..6142a3bb 100644
--- a/www/polls/votes/new.php
+++ b/www/polls/votes/new.php
@@ -1,6 +1,4 @@
 <?
-require_once('Core.php');
-
 use function Safe\session_unset;
 
 session_start();
diff --git a/www/polls/votes/post.php b/www/polls/votes/post.php
index 250891bb..1be01702 100644
--- a/www/polls/votes/post.php
+++ b/www/polls/votes/post.php
@@ -1,6 +1,4 @@
 <?
-require_once('Core.php');
-
 use function Safe\preg_match;
 use function Safe\session_unset;
 
diff --git a/www/sessions/new.php b/www/sessions/new.php
index b5ddcc3d..1316b647 100644
--- a/www/sessions/new.php
+++ b/www/sessions/new.php
@@ -1,6 +1,4 @@
 <?
-require_once('Core.php');
-
 use function Safe\session_unset;
 
 session_start();
diff --git a/www/sessions/post.php b/www/sessions/post.php
index 1f973f6f..2d0dd2d3 100644
--- a/www/sessions/post.php
+++ b/www/sessions/post.php
@@ -1,6 +1,4 @@
 <?
-require_once('Core.php');
-
 use function Safe\preg_match;
 use function Safe\session_unset;
 
diff --git a/www/settings/index.php b/www/settings/index.php
index 55aefa76..4c2cc294 100644
--- a/www/settings/index.php
+++ b/www/settings/index.php
@@ -1,6 +1,4 @@
 <?
-require_once('Core.php');
-
 $colorScheme = $_COOKIE['color-scheme'] ?? 'auto';
 
 ?><?= Template::Header(['title' => 'Website Settings', 'description' => 'Adjust your settings for viewing the Standard Ebooks website.']) ?>
diff --git a/www/settings/post.php b/www/settings/post.php
index 94ea53d3..0f90cce1 100644
--- a/www/settings/post.php
+++ b/www/settings/post.php
@@ -1,6 +1,4 @@
 <?
-require_once('Core.php');
-
 use function Safe\strtotime;
 
 $hideDonationAlert = HttpInput::Bool(POST, 'hide-donation-alert');
diff --git a/www/webhooks/github.php b/www/webhooks/github.php
index d7ec1515..1060cd01 100644
--- a/www/webhooks/github.php
+++ b/www/webhooks/github.php
@@ -1,6 +1,4 @@
 <?
-require_once('Core.php');
-
 use function Safe\substr;
 use function Safe\file_get_contents;
 use function Safe\preg_replace;
diff --git a/www/webhooks/postmark.php b/www/webhooks/postmark.php
index 3883f815..61874b9f 100644
--- a/www/webhooks/postmark.php
+++ b/www/webhooks/postmark.php
@@ -1,6 +1,4 @@
 <?
-require_once('Core.php');
-
 use function Safe\curl_exec;
 use function Safe\curl_init;
 use function Safe\curl_setopt;
diff --git a/www/webhooks/zoho.php b/www/webhooks/zoho.php
index 99e6ebc8..db011ebc 100644
--- a/www/webhooks/zoho.php
+++ b/www/webhooks/zoho.php
@@ -1,6 +1,4 @@
 <?
-require_once('Core.php');
-
 use Safe\DateTime;
 use function Safe\file_get_contents;
 use function Safe\preg_match;