[lnfinity]

Alright thanks.
Should I add this despite the fact that it seems to work now?
Also if running the SetCVar in the first line, does that mean that the .lua file is a 1 liner? Sorry if this question is stupid, I am new to this.


Edit: I tested it multiple times and the thing seems to work flawlessly now.
The code looks like this:

AdvancedLanguageSelector = {}
AdvancedLanguageSelector.name = "AdvancedLanguageSelector"
 
function AdvancedLanguageSelector:Initialize()
    EVENT_MANAGER:RegisterForEvent(AdvancedLanguageSelector.name, EVENT_PLAYER_ACTIVATED, AdvancedLanguageSelector.OnPlayerActivated)
end
 
function AdvancedLanguageSelector.OnPlayerActivated()
    EVENT_MANAGER:UnregisterForEvent(AdvancedLanguageSelector.name, EVENT_PLAYER_ACTIVATED)
    SetCVar("language.2","en")
end
 
function AdvancedLanguageSelector.OnAddOnLoaded(event, addonName)
    if addonName == AdvancedLanguageSelector.name then
        AdvancedLanguageSelector:Initialize()
    end
end
 
EVENT_MANAGER:RegisterForEvent(AdvancedLanguageSelector.name, EVENT_ADD_ON_LOADED, AdvancedLanguageSelector.OnAddOnLoaded)

Is this foolproof or is there anything else I need to change/check before uploading it?
(Yes I wanna upload it here to share my work with other people who might wanna play the game in the same way I do )

Thanks Baertram and sirinsidiator for your help!!