just a simple cloudflare worker script that you can use for making .json subscription link for using on sing-box application,

your subscription links would be like this:

https://worker.dev/?subs=1st

https://worker.dev/?subs=2st

https://worker.dev/?subs=3st

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your JSON body goes between { } under each provider:

        jsonData = {
       };