diff --git a/README.md b/README.md
index 8c5b14b..f199340 100644
--- a/README.md
+++ b/README.md
@@ -20,7 +20,7 @@ you're using other hardware, you might need to do some things differently.
 8. On some Linux distributions, you'll need to prevent BRLTTY from taking over the serial adapter because BRLTTY thinks it's a Braille keyboard. You can do this by uninstalling it (`pacman -R brltty`) or by [disabling it and then rebooting](https://unix.stackexchange.com/questions/670636/unable-to-use-usb-dongle-based-on-usb-serial-converter-chip).
 9. If you get permission errors, try adding yourself to the dialout or uucp (Arch Linux) group
 
-TODO insert picture here
+![A screenshot of the OBUS controller web page, showing a countdown timer, a list of connected modules and the strikes](docs/images/controller/controller_screenshot.png)
 
 ## Background
 ### Game
diff --git a/docs/build.py b/docs/build.py
index 64ed751..ee11bc1 100644
--- a/docs/build.py
+++ b/docs/build.py
@@ -29,4 +29,4 @@ with open(outfilename, 'w') as outfile:
 		with open(filepath) as infile:
 			outfile.write(infile.read())
 			outfile.write("\n\\newpage{}\n")
-os.system(f"pandoc --from=markdown --template=template.tex --output=docs.pdf prefix.yaml {outfilename} --highlight-style=espresso")
+exit(os.system(f"pandoc --from=markdown --template=template.tex --output=docs.pdf prefix.yaml {outfilename} --highlight-style=espresso"))
diff --git a/docs/images/controller/controller_screenshot.png b/docs/images/controller/controller_screenshot.png
new file mode 100644
index 0000000..860b2e0
Binary files /dev/null and b/docs/images/controller/controller_screenshot.png differ
diff --git a/docs/prefix.md b/docs/prefix.md
index 9ad4fbb..dea4f17 100644
--- a/docs/prefix.md
+++ b/docs/prefix.md
@@ -19,4 +19,4 @@ verwezen worden naar de pagina in de appendix die over die infomodule gaat.
 ## Fouten
 
 Wanneer fouten gemaakt worden tijdens het ontmantelen van de bom, zal dit aangegeven worden op
-het scherm van de bom. Zijn er te veel fouten gemaakt, dan ontploft de bom.
+het scherm van de bom: per fout zal er een uitroepteken bovenaan rood worden. Zijn er te veel fouten gemaakt, dan ontploft de bom.
diff --git a/docs/template.tex b/docs/template.tex
index 19ecaa5..3c010c1 100644
--- a/docs/template.tex
+++ b/docs/template.tex
@@ -419,9 +419,7 @@ $endif$
 $if(nocite-ids)$
 \nocite{$for(nocite-ids)$$it$$sep$, $endfor$}
 $endif$
-$if(csquotes)$
 \usepackage{csquotes}
-$endif$
 
 $if(title)$
 \title{$title$$if(thanks)$\thanks{$thanks$}$endif$}