refactor: move options into own module

modules/options.nix

@@ -0,0 +1,42 @@
+{ config, lib, pkgs, ... }: with lib; let
+  directoryModule = { name, ... }: {
+    options = {
+      name = mkOption {
+        type = types.str;
+        default = last (splitString "/" name);
+      };
+      fetch = mkOption {
+        type = types.bool;
+        default = true;
+      };
+      upload = mkOption {
+        type = types.bool;
+        default = false;
+      };
+    };
+  };
+  endpointOption = mkOption {
+    type = types.str;
+    description = "API endpoint url";
+    default = "https://pki.shimun.net";
+  };
+
+
+in
+{
+  options = {
+    services.ssh-cert-dist = {
+      enable = mkEnableOption "ssh-cert-dist";
+      endpoint = endpointOption;
+      directories = mkOption {
+        type = with types; attrsOf (submodule directoryModule);
+        default = { };
+      };
+    };
+    programs.ssh-cert-dist = {
+      enable = mkEnableOption "ssh-cert-dist client";
+      endpoint = endpointOption;
+    };
+  };
+
+}