哪些环境变量是必需的？

[Falco]

Render 安装由其团队提供支持，您可以通过以下方式联系他们：

Discourse One-Click Self-Hosting: Quicker and Easier than Official Install

@justin Render will continue to provide full support for this install method. Users can email support@render.com or post in our Discourse community at https://community.render.com. @Falco the price can technically be lower if you select smaller plans for the individual components, but we’ve found that the suggested setup is the lowest price for a production-ready, hassle-free Discourse experience.