System/Servenix: Add initial servenix system configuration

system/services/heidi.nix

@@ -0,0 +1,31 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}: {
+  virtualisation.oci-containers.containers.heidi = {
+    image = "gitea.vps.chriphost.de/christoph/discord-heidi:latest";
+    autoStart = true;
+
+    dependsOn = [];
+
+    ports = [];
+
+    volumes = [
+      "heidi_config:/config"
+
+      "/home/christoph/heidi-sounds:/sounds:ro"
+    ];
+
+    environment = {
+      DISCORD_TOKEN = (builtins.readFile ./heidi.discord_token);
+      DOCKER = "True";
+    };
+
+    extraOptions = [
+      "--init" # Make an init process take up PID 1, to make python receive the SIGTERM
+      "--net=behind-nginx"
+    ];
+  };
+}