config module
                  
                  
                  and from here i have two option
                  
                  
                  just make some const variables like
                  
                  
                  const database_url:String= std::env::vars("DATABASE_URL").unwrap();
                  
                  
                  or make a config struct and read env vars when constructing it
                  
                  
                  because this config will be used in a lot if places i think it should be constructed once
                  
                  
                  what is the best way for doing this?
                  
                  
                
edit: actualy first option is not possible
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