services.mautrix-discord.environmentFile

File containing environment variables to substitute when copying the configuration out of Nix store to the services.mautrix-discord.dataDir. Can be used for storing the secrets without making them available in the Nix store. For example, you can set services.mautrix-discord.settings.appservice.as_token = "$MAUTRIX_DISCORD_APPSERVICE_AS_TOKEN" and then specify MAUTRIX_DISCORD_APPSERVICE_AS_TOKEN="{token}" in the environment file. This value will get substituted into the configuration file as a token.