From 14f8c4a98b0e9e6d0bbf5baad1e637b85705fe7e Mon Sep 17 00:00:00 2001
From: Astro <astro@spaceboyz.net>
Date: Sun, 19 Jun 2022 03:30:35 +0200
Subject: [PATCH] README: microvm -Ru

---
 README.md | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/README.md b/README.md
index f458e9a7..75b362a9 100644
--- a/README.md
+++ b/README.md
@@ -141,6 +141,17 @@ nix run .#microvm-update-spaceapi
 nix run .#microvm-update-spaceapi-local
 ```
 
+### Update MicroVM from our Hydra
+
+Our Hydra runs `nix flake update` daily in the `updater.timer`,
+pushing it to the `flake-update` branch so that it can build fresh
+systems. This branch is setup as the source flake in all the MicroVMs,
+so the following is all that is needed on a MicroVM-hosting server:
+
+```shell
+microvm -Ru $hostname
+```
+
 # Secrets management
 
 ## Secrets managment with PGP