1 files changed, 6 insertions, 0 deletions

diff --git a/README.md b/README.md
index 54b40dc..a2dd1da 100644
--- a/README.md
+++ b/README.md
@@ -73,3 +73,9 @@ request per second per IP.
 - Run Farside: `mix run --no-halt`
   - Uses localhost:4001
 
+### Environment Variables
+
+| Name | Purpose |
+| -- | -- |
+| FARSIDE_TEST | If enabled, skips the instance availability check in `update.exs`. |
+| FARSIDE_NO_ROUTER | If enabled, skips creation of the router. Useful for running `update.exs` with `mix run` when the app is already running. |