NixOS-Config/modules/system/services/server/nginx/default.nix

{ pkgs, config, ... }:
{
  services.nginx = {
    enable = true;
    package = (pkgs.nginx.override {
      modules = with pkgs.nginxModules; [ rtmp ];
    });
    recommendedTlsSettings = true;
    recommendedOptimisation = true;
    recommendedGzipSettings = true;
    recommendedProxySettings = true;
    virtualHosts = {
      # Landing page
      "${config.secrets.jimDomain}" =  {
        enableACME = true;
        addSSL = true;
        root = "/var/www/Jimbo-Landing-Page";
        locations = {
          "/.well-known/matrix/client" = {
            extraConfig = ''
              default_type application/json;
              return 200 '
              {
                "m.homeserver": {
                  "base_url": "https://matrix.${config.secrets.jimDomain}"
                },
                "m.identity_server": {
                  "base_url": "https://matrix.org"
                },
                "org.matrix.msc3575.proxy": {
                  "url": "https://matrix.${config.secrets.jimDomain}"
                }
              }';
            '';
          };
          "/.well-known/matrix/server" = {
            extraConfig = ''
              default_type application/json;
              return 200 '{"m.server": "matrix.${config.secrets.jimDomain}:443"}';
            '';
          };
        };
      };
    };
    appendConfig = ''
      rtmp {
        server {
          listen 1935;
          chunk_size 4096;
          allow publish all;
          application stream {
            record off;
            live on;
            allow play all;
            hls on;
            hls_path /var/www/Jimbo-Landing-Page/streams/hls/;
            hls_fragment_naming system;
            hls_fragment 3;
            hls_playlist_length 40;
          }
        }
      }
    '';
  };

  # Allow Nginx to read and write to paths
  systemd.services.nginx.serviceConfig = {
    ReadWritePaths = [ "/var/www/Jimbo-Landing-Page/streams/hls/" ];
  };

  # Open HTTP and HTTPs ports
  networking.firewall.allowedTCPPorts = [
    80 443
  ];
}