Fuck around with biblatex some more, still not working

common-defs.tex

@@ -11,6 +11,7 @@
     url=false, 
     doi=true,
     eprint=false,
+    defernumbers=true,
     ]{biblatex}
 \addbibresource{main.bib}
 \DeclareSourcemap{
@@ -135,8 +136,11 @@
 
 \newcommand{\chapterbibliography}{
     \clearpage % clearpage flushes all figures. force this here so we don't get figures floating in between references.
+    \newrefcontext[labelprefix=W]
     \printbibliography[type={online},title={Web sources},resetnumbers,heading=subbibintoc]
+    \newrefcontext
     \printbibliography[nottype={online},nottype={patent},resetnumbers,heading=subbibintoc]
+    \newrefcontext[labelprefix=P]
     \printbibliography[type={patent},title={Patent References},resetnumbers,heading=subbibintoc]
 }
 

thesis.tex

@@ -18,8 +18,6 @@
     \renewcommand{\figurepath}{#1/figures}
     \graphicspath{{\figurepath}}
     \input{#1/chapter.tex}
-
-    \chapterbibliography
 }
 
 \title{Bootstrapping Physical Security with Inertial Hardware Security Modules}
@@ -46,4 +44,7 @@
 
 \appendix
 
+\chapter*{Bibliography}
+\chapterbibliography
+
 \end{document}