Distinguish attachments, which are non-markdown files that should be served/copied directly, not processed into a template.

make-dev-environment

@@ -1,4 +1,5 @@
-#!/usr/bin/env -S guix shell -D -f guix.scm rust-analyzer -- sh
+#!/usr/bin/env -S guix shell pkg-config rust-analyzer -- sh
+##!/usr/bin/env -S guix shell -D -f guix.scm rust-analyzer -- sh
 ##!/usr/bin/env -S guix shell -D -f guix.scm -- sh
 #export LIBCLANG_PATH=$GUIX_ENVIRONMENT/lib/libclang.so
 export CC=gcc