Use yaml instead of json for the config file

scripts/config.yaml.sample

@@ -0,0 +1,24 @@
+# Change listen_port if port 9000 is already in use on your system
+# Set listen_to_network to true to make Easy Diffusion accessibble on your local network
+net:
+  listen_port: 9000
+  listen_to_network: false
+
+# Multi GPU setup
+render_devices: auto
+
+# Set open_browser_on_start to false to disable opening a new browser tab on each restart
+ui:
+  open_browser_on_start: true
+
+# set update_branch to main to use the stable version, or to beta to use the experimental
+# beta version.
+update_branch: main
+
+# Set force_save_path to enforce an auto save path. Clients will not be able to change or
+# disable auto save when this option is set. Please adapt the path in the examples to your
+# needs.
+# Windows:
+# force_save_path: C:\\Easy Diffusion Images\\
+# Linux:
+# force_save_path: /data/easy-diffusion-images/

scripts/on_sd_start.bat

@@ -135,6 +135,23 @@ if "%ERRORLEVEL%" EQU "0" (
     )
 )
 
+@rem install ruamel.yaml
+call python ..\scripts\check_modules.py ruamel.yaml
+if "%ERRORLEVEL%" EQU "0" (
+    echo "ruamel.yaml has already been installed."
+) else (
+    echo "Installing ruamel.yaml.."
+
+    set PYTHONNOUSERSITE=1
+    set PYTHONPATH=%INSTALL_ENV_DIR%\lib\site-packages
+
+    call python -m pip install ruamel.yaml==0.17.21 || (
+        echo "Error installing ruamel.yaml. Sorry about that, please try to:" & echo "  1. Run this installer again." & echo "  2. If that doesn't fix it, please try the common troubleshooting steps at https://github.com/cmdr2/stable-diffusion-ui/wiki/Troubleshooting" & echo "  3. If those steps don't help, please copy *all* the error messages in this window, and ask the community at https://discord.com/invite/u9yhsFmEkB" & echo "  4. If that doesn't solve the problem, please file an issue at https://github.com/cmdr2/stable-diffusion-ui/issues" & echo "Thanks!"
+        pause
+        exit /b
+    )
+)
+
 set PATH=C:\Windows\System32;%PATH%
 
 call python ..\scripts\check_modules.py uvicorn fastapi