diff --git a/.arcconfig b/.arcconfig
new file mode 100644
index 0000000000000000000000000000000000000000..49c6521f971f112239264620126bfadaa2c4a63c
--- /dev/null
+++ b/.arcconfig
@@ -0,0 +1,5 @@
+{
+  "project.name"        : "array",
+  "repository.callsign" : "ARRAY",
+  "phabricator.uri"     : "https://phabricator.haskell.org"
+}