diff --git a/.arcconfig b/.arcconfig
new file mode 100644
index 0000000000000000000000000000000000000000..b88cb3432484eadb5ab1f4a62bfb6e4c88da9243
--- /dev/null
+++ b/.arcconfig
@@ -0,0 +1,5 @@
+{
+  "project.name"        : "hpc",
+  "repository.callsign" : "HPC",
+  "phabricator.uri"     : "https://phabricator.haskell.org"
+}