diff --git a/687.patch b/687.patch
new file mode 100644
index 0000000..62fe29d
--- /dev/null
+++ b/687.patch
@@ -0,0 +1,33 @@
+From 18beaecbbcc066e0d4c889b3aa3ecaa7351f7768 Mon Sep 17 00:00:00 2001
+From: Evgeny Stambulchik <fnevgeny@gmail.com>
+Date: Tue, 25 Apr 2023 16:11:25 +0300
+Subject: [PATCH] Create Lists of nullable types
+
+---
+ src/classes/drawings/drawing_commands.vala | 6 +++---
+ 1 file changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/src/classes/drawings/drawing_commands.vala b/src/classes/drawings/drawing_commands.vala
+index 77e56e6d..c305a8c5 100644
+--- a/src/classes/drawings/drawing_commands.vala
++++ b/src/classes/drawings/drawing_commands.vala
+@@ -54,8 +54,8 @@ namespace pdfpc {
+         }
+ 
+         public void clear() {
+-            this.drawing_commands = new List<DrawingCommand>();
+-            this.redo_commands = new List<DrawingCommand>();
++            this.drawing_commands = new List<DrawingCommand?>();
++            this.redo_commands = new List<DrawingCommand?>();
+         }
+ 
+         public void add_line(bool is_eraser,
+@@ -70,7 +70,7 @@ namespace pdfpc {
+ 
+             // After adding a new line you can no longer redo the old
+             // path.
+-            this.redo_commands = new List<DrawingCommand>(); // clear
++            this.redo_commands = new List<DrawingCommand?>(); // clear
+ 
+             bool new_path = true;
+             double epsilon = 1e-4; // Less than 0.1 pixel for a 1000x1000 img
diff --git a/pdfpc.spec b/pdfpc.spec
index 536349e..234028d 100644
--- a/pdfpc.spec
+++ b/pdfpc.spec
@@ -7,6 +7,10 @@ License:        GPL-3.0-or-later
 URL:            https://%{name}.github.io/
 Source0:        https://github.com/%{name}/%{name}/archive/v%{version}.tar.gz
 
+# https://github.com/pdfpc/pdfpc/pull/687
+Patch0:         https://patch-diff.githubusercontent.com/raw/pdfpc/pdfpc/pull/687.patch
+BuildRequires:  git-core
+
 BuildRequires:  cmake
 BuildRequires:  gcc
 BuildRequires:  gtk3-devel
@@ -18,8 +22,12 @@ BuildRequires:  librsvg2-devel
 BuildRequires:  libgee-devel
 BuildRequires:  pango-devel
 BuildRequires:  poppler-glib-devel
-BuildRequires:  webkit2gtk3-devel
-BuildRequires:  vala vala-devel
+# disable until upstream finishes porting to libsoup3
+# https://github.com/pdfpc/pdfpc/issues/671
+# https://github.com/pdfpc/pdfpc/issues/664
+#BuildRequires:  pkgconfig(libsoup3)
+#BuildRequires:  pkgconfig(webkit2gtk-4.1)
+BuildRequires:  vala libvala-devel
 BuildRequires:  qrencode-devel
 
 %description
@@ -33,11 +41,12 @@ documents, which can be created using nearly any of today's presentation
 software.
 
 %prep
-%autosetup -n %{name}-%{version}
-
+%autosetup -n %{name}-%{version} -S git
 
 %build
-%cmake -DSYSCONFDIR=/etc .
+# temporarily disable REST until it is ported to libsoup3
+# disable markdown view until it is ported to webkit2gtk-4.1
+%cmake -DSYSCONFDIR=/etc -DREST=OFF -DMDVIEW=OFF .
 %cmake_build