Add nixos module

flake.nix

@@ -14,7 +14,12 @@
     };
   };
 
-  outputs = inputs@{ flake-parts, crane-flake-parts, ... }:
+  outputs = inputs @ {
+    self,
+    flake-parts,
+    crane-flake-parts,
+    ...
+  }:
     flake-parts.lib.mkFlake {inherit inputs;} {
       imports = [
         crane-flake-parts.flakeModules.default
@@ -23,7 +28,40 @@
       crane.source = ./.;
       perSystem = {pkgs, ...}: {
         crane.packages.default.buildInputs = [pkgs.sqlite];
-        crane.shell.args.packages = [pkgs.sqlite-interactive pkgs.sqlx-cli];
+        crane.shell.args.packages = [pkgs.sqlite-interactive];
+      };
+
+      flake.nixosModules.default = {
+        pkgs,
+        lib,
+        config,
+        ...
+      }: let
+        pkg = self.packages.${pkgs.system}.default;
+        cfg = config.bluepython508.botc-mover;
+      in {
+        options.bluepython508.botc-mover = with lib; {
+          enable = mkEnableOption "botc-mover";
+          tokenFile = mkOption {
+            type = types.path;
+          };
+        };
+        config.systemd.services.botc-mover = lib.mkIf cfg.enable {
+          description = "BotC Mover";
+          environment = {
+            DB_FILE = "/var/lib/botc-mover/db.sqlite";
+            DISCORD_TOKEN_FILE = "%d/discord-token";
+            RUST_BACKTRACE = "1";
+          };
+          wantedBy = ["multi-user.target"];
+          script = "${pkg}/bin/botc-mover";
+
+          serviceConfig = {
+            LoadCredential = ["discord-token:${cfg.tokenFile}"];
+            DynamicUser = true;
+            StateDirectory = "botc-mover";
+          };
+        };
       };
     };
 }