Add a separate stack for Osmosis front end on Urbit

stack_orchestrator/data/config/osmosis/build-app-for-urbit.sh

@@ -0,0 +1,21 @@
+#!/bin/sh
+
+set -e
+if [ -n "$CERC_SCRIPT_DEBUG" ]; then
+  set -x
+fi
+
+# Check and exit if a deployment already exists (on restarts)
+if [ -d /app-builds/osmosis/build ]; then
+  echo "Build already exists, remove volume to rebuild"
+  exit 0
+fi
+
+yarn build:static
+
+# Move build to app-builds
+mkdir -p /app-builds/osmosis
+cp -r ./out /app-builds/osmosis/build
+
+cp -r mar /app-builds/osmosis/
+cp desk.docket-0 /app-builds/osmosis/