You do not want to host someone else's code. Webhooks are great because they simply require an endpoint. If you host someone else's code, you also need to host

You do not want to host someone else's code. Webhooks are great because they simply require an endpoint. If you host someone else's code, you also need to host their 3rd-party API keys, etc. You'll also have to combat spammers using your IPs to do bad stuff.