diff --git a/nixos/modules/module-list.nix b/nixos/modules/module-list.nix
index 28a58249e798..cc00ea35b819 100644
--- a/nixos/modules/module-list.nix
+++ b/nixos/modules/module-list.nix
@@ -844,6 +844,7 @@
   ./services/misc/tabby.nix
   ./services/misc/tandoor-recipes.nix
   ./services/misc/taskserver
+  ./services/misc/taskchampion-sync-server.nix
   ./services/misc/tautulli.nix
   ./services/misc/tiddlywiki.nix
   ./services/misc/tp-auto-kbbl.nix
diff --git a/nixos/modules/services/misc/taskchampion-sync-server.nix b/nixos/modules/services/misc/taskchampion-sync-server.nix
new file mode 100644
index 000000000000..04037dee576b
--- /dev/null
+++ b/nixos/modules/services/misc/taskchampion-sync-server.nix
@@ -0,0 +1,85 @@
+{
+  config,
+  pkgs,
+  lib,
+  ...
+}:
+let
+  inherit (lib) types;
+  cfg = config.services.taskchampion-sync-server;
+in
+{
+  options.services.taskchampion-sync-server = {
+    enable = lib.mkEnableOption "TaskChampion Sync Server for Taskwarrior 3";
+    package = lib.mkPackageOption pkgs "taskchampion-sync-server" { };
+    user = lib.mkOption {
+      description = "Unix User to run the server under";
+      type = types.str;
+      default = "taskchampion";
+    };
+    group = lib.mkOption {
+      description = "Unix Group to run the server under";
+      type = types.str;
+      default = "taskchampion";
+    };
+    port = lib.mkOption {
+      description = "Port on which to serve";
+      type = types.port;
+      default = 10222;
+    };
+    openFirewall = lib.mkEnableOption "Open firewall port for taskchampion-sync-server";
+    dataDir = lib.mkOption {
+      description = "Directory in which to store data";
+      type = types.path;
+      default = "/var/lib/taskchampion-sync-server";
+    };
+    snapshot = {
+      versions = lib.mkOption {
+        description = "Target number of versions between snapshots";
+        type = types.ints.positive;
+        default = 100;
+      };
+      days = lib.mkOption {
+        description = "Target number of days between snapshots";
+        type = types.ints.positive;
+        default = 14;
+      };
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    users.users.${cfg.user} = {
+      isSystemUser = true;
+      inherit (cfg) group;
+    };
+    users.groups.${cfg.group} = { };
+    networking.firewall.allowedTCPPorts = lib.mkIf (cfg.openFirewall) [ cfg.port ];
+    systemd.tmpfiles.settings = {
+      "10-taskchampion-sync-server" = {
+        "${cfg.dataDir}" = {
+          d = {
+            inherit (cfg) group user;
+            mode = "0750";
+          };
+        };
+      };
+    };
+
+    systemd.services.taskchampion-sync-server = {
+      wantedBy = [ "multi-user.target" ];
+      after = [ "network.target" ];
+      serviceConfig = {
+        User = cfg.user;
+        Group = cfg.group;
+        DynamicUser = false;
+        ExecStart = ''
+          ${lib.getExe cfg.package} \
+            --port ${builtins.toString cfg.port} \
+            --data-dir ${cfg.dataDir} \
+            --snapshot-versions ${builtins.toString cfg.snapshot.versions} \
+            --snapshot-days ${builtins.toString cfg.snapshot.days}
+        '';
+      };
+    };
+  };
+}