안녕하세요,
discourse 서버를 배포하는 것을 고려하고 있습니다. 
discourse 서버를 직접 호스팅하지 않고 새로운 모듈을 개발하고 구현할 수 있는 방법이 있을까요?
미리 답변 주셔서 감사합니다.
If you need to change the API, then hosting can become more expensive, as only higher tiers of hosting product usually allow you to deploy custom changes to the back end.
If however you are just wanting to change the look and feel and tweak the UI, leveraging the existing API set, a lot of hosts will allow you to deploy your own Theme Components at no extra cost (depending on the host and product level you are on!).
You will need to discuss this with a potential host.
All that said, if your “module” is novel and sophisticated enough it will require significant knowledge to write and so the hosting part will probably be really easy if you are that experienced. Developing Plugins is non-trivial and there is a bit of a learning curve. I’d argue a much steeper curve than the relatively easy path to deploy your own default instance on your own VPS (thanks in large part to CDCK’s effort to make things straightforward).
It depends on what you mean by “module”.
Theme components are supported on every Discourse install, regardless of being hosted or self hosted.
Plugins do require support from your hosting provider. At Communiteq we offer managed hosting with support for self-developed plugins and plugins that have been developed for you.
We also support custom plugins on our official hosting, but it is plan dependant.