From fb1c0800340a87a120c154d6437a9e4c281d5755 Mon Sep 17 00:00:00 2001
From: zecka <18116930+zecka@users.noreply.github.com>
Date: Sun, 6 Jul 2025 10:27:09 +0200
Subject: [PATCH] docs(readme): fix docker example to create valid save.json if
 missing (#12)

* docs(readme): fix docker example to create valid save.json if missing

Prevent runtime errors by initializing save.json with '{}' if the file does not exist before running the container.

Fixes #11

* Update README.md

---------

Co-authored-by: Pijus Kamandulis <pikami@users.noreply.github.com>
---
 README.md | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 9da20da..c9c7e63 100644
--- a/README.md
+++ b/README.md
@@ -64,7 +64,8 @@ There are two docker tags available:
 If you wan to run the application using docker, configure it using environment variables see example:
 
 ```sh
-docker run --rm \
+# Ensure save.json exists so Docker volume mounts correctly
+[ -f save.json ] || echo '{}' > save.json && docker run --rm \
   -e COSMIUM_PERSIST=/save.json \
   -v ./save.json:/save.json \
   -p 8081:8081 \