HELP - howto transfer value from lua script to config

[Lurgainn]

Hi everyone,
maybe this is a dumb question but I can't solve by myself how to do one job:
in my "conky.conf" file I want to display the Linux kernel version so, if I do that in a static mode, I need to insert into the section "conky.text" the line (for example):
${color #FF8080}${alignc}${font}Linux 6.11.0-21-generic
etc... ,
but I want to dynamically load that string just one time at startup with a lua script.
I know that I have to use "lua_load = ".... and set the hook lua_startup_hook (I read all the wiki), but after I capture my value (kernel version) from a Lua function, how I can transfer it to the config file in a way that the function get executed just one time?
Can someone write few lines, as an example, of the config and the lua files?

Tanks so much for any help,
cheers

[Caellian]

conky.text is read only once when the main config file is first loaded. Some settings in conky.config can be updated dynamically.

You've got a few options:

• instead of lua_load, put the lua code that gets the information you want to capture once at the beginning of main config file. Then you can concatenate the string you want into conky.text using regular lua concatenation. This is IMO the simplest choice.
• You can also store the value into a template and then use that template in conky.text if you wish to avoid concatenation.
• You can leave some space for the value and then manually draw text using cairo from lua.

[Lurgainn]

Thanks so much, you solved my problem