diff --git a/ci b/ci
new file mode 100755
index 0000000..7f620cc
--- /dev/null
+++ b/ci
@@ -0,0 +1,21 @@
+#!/bin/bash
+
+set -ev # Ref https://docs.travis-ci.com/user/customizing-the-build/#Implementing-Complex-Build-Steps
+
+case "${1:?}" in
+    before_install)
+        ## Travis CI does not support rebar3 yet. See https://github.com/travis-ci/travis-ci/issues/6506#issuecomment-275189490
+        Rebar3="${2:?}"
+        curl -f -L -o "${Rebar3:?}" https://github.com/erlang/rebar3/releases/download/3.3.5/rebar3
+        chmod +x "${Rebar3:?}"
+        ;;
+    install)
+        Rebar3="${2:?}"
+        "${Rebar3:?}" deps
+        "${Rebar3:?}" dialyzer -u true -s false
+        ;;
+    script)
+        Rebar3="${2:?}"
+        "${Rebar3:?}" ct
+        ;;
+esac