Install hledger-web in /usr/local.

.sandstorm/build.sh

@@ -20,4 +20,4 @@ set -euo pipefail
 # By default, this script does nothing.  You'll have to modify it as
 # appropriate for your application.
 cabal update
-cabal install hledger-web-0.26
+cabal install  --root-cmd=sudo --global --prefix=/usr/local hledger-web

.sandstorm/sandstorm-pkgdef.capnp

@@ -76,6 +76,6 @@ const myCommand :Spk.Manifest.Command = (
   argv = ["/sandstorm-http-bridge", "8000", "--", "/opt/app/.sandstorm/launcher.sh"],
   environ = [
     # Note that this defines the *entire* environment seen by your app.
-    (key = "PATH", value = "/usr/local/bin:/usr/bin:/bin:/home/vagrant/.cabal/bin")
+    (key = "PATH", value = "/usr/local/bin:/usr/bin:/bin")
   ]
 );