diff --git a/src/.config/zathura/zathurarc b/src/.config/zathura/zathurarc
index 30a05fa..b8207cd 100644
--- a/src/.config/zathura/zathurarc
+++ b/src/.config/zathura/zathurarc
@@ -1,6 +1,3 @@
-# might break things, but more secure
-set sandbox strict
-
 set statusbar-home-tilde true
 
 # make things fit better
@@ -27,3 +24,5 @@ set selection-clipboard clipboard
 
 map <C-l> exec copy_ref
 map <C-g> exec "copy_ref --section"
+
+map ,fr exec "open_typ.sh $FILE"
diff --git a/src/.local/bin/open_typ.sh b/src/.local/bin/open_typ.sh
new file mode 100755
index 0000000..5887022
--- /dev/null
+++ b/src/.local/bin/open_typ.sh
@@ -0,0 +1,4 @@
+#!/bin/sh
+# opens corresponding .typ to current .pdf
+
+st -e nvim $(printf "%s/%s.typ" $(dirname "$1") $(basename -s .pdf "$1"))
diff --git a/src/.local/bin/pyinstantref b/src/.local/bin/pyinstantref
index 31b4605..0135f1e 160000
--- a/src/.local/bin/pyinstantref
+++ b/src/.local/bin/pyinstantref
@@ -1 +1 @@
-Subproject commit 31b4605b548e0e637b570f532be143b7eb91d553
+Subproject commit 0135f1eb4f7f0c2c200b76ea80e4ccf1c8169797