diff --git a/flake.nix b/flake.nix
index ea6f7d0..9663b81 100644
--- a/flake.nix
+++ b/flake.nix
@@ -41,7 +41,7 @@
             cp -R ./node_modules/* $out/node_modules
             ls -la $out/node_modules
           '';
-          outputHash = "sha256-2qqPTYzbW/MuBfwYDAPZs0fiElTut3tKqCeMW6YIYTg=";
+          outputHash = "sha256-XX8RozzH76qzBAIyWYwPynaxGIaHNojNw5s6aCqaSio=";
           outputHashAlgo = "sha256";
           outputHashMode = "recursive";
         };
diff --git a/readme.md b/readme.md
index 017d4e7..eb802f3 100644
--- a/readme.md
+++ b/readme.md
@@ -67,7 +67,10 @@ REPOSITORY                   TAG       IMAGE ID       CREATED        SIZE
 ghcr.io/oppiliappan/lurker   latest    ba3733164889   54 years ago   186MB
 
 # start lurker in a container
-$ docker run ghcr.io/oppiliappan/lurker:latest
+#
+# lurker stores data in /data,
+# so create a volume on the host accordingly:
+$ docker run -v /your/host/lurker-data:/data ghcr.io/oppiliappan/lurker:latest
 ```
 
 or with just [bun](https://bun.sh/):