The app instance can be customized by passing the following variables to the Node.js environment at runtime. Some of these variables have been deprecated, and their full list can be found in the [file](./DEPRECATED_ENVS.md).
**IMPORTANT NOTE!** For _production_ build purposes all json-like values should be single-quoted. If it contains a hash (`#`) or a dollar-sign (`$`) the whole value should be wrapped in single quotes as well (see `dotenv`[readme](https://github.com/bkeepers/dotenv#variable-substitution) for the reference)
## Read before you run the app
## Disclaimer about using variables
### Variables compulsoriness
Please note that in the tables below, the "Compulsoriness" column indicates whether the variable is required for starting up the application, except for the "App Features" section. All features are optional by definition; therefore, the "Compulsoriness" column indicates whether a certain variable is required or optional only within the context of that feature, not for the entire application.
Please be aware that all environment variables prefixed with `NEXT_PUBLIC_` will be exposed to the browser. So any user can obtain its values. Make sure that for all 3rd-party services keys (e.g., Sentri, Auth0, WalletConnect, etc.) in the services administration panel you have created a whitelist of allowed origins and have added your app domain into it. That will help you prevent using your key by unauthorized app, if someone gets its value.
### Disclaimer about using variables
Please be aware that all environment variables prefixed with `NEXT_PUBLIC_` will be exposed to the browser. So any user can obtain its values. Make sure that for all 3rd-party services keys (e.g., Auth0, WalletConnect, etc.) in the services administration panel you have created a whitelist of allowed origins and have added your app domain into it. That will help you prevent using your key by unauthorized app, if someone gets its value.
### Note about escaping variables values
All json-like values should be single-quoted. If it contains a hash (`#`) or a dollar-sign (`$`) the whole value should be wrapped in single quotes as well (see `dotenv`[readme](https://github.com/bkeepers/dotenv#variable-substitution) for the reference)
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@@ -351,7 +356,7 @@ Settings for meta tags, OG tags and SEO
## App features
*Note* The variables which are marked as required should be passed as described in order to enable the particular feature, but they are not required in the whole app context.
*Note* The variables which are marked as required should be passed as described in order to enable the particular feature, but they are not required in the entire app context.
