added more notes about continue configuration

modules/nixos-modules/ai.nix

@@ -0,0 +1,44 @@
+{lib, ...}: {
+  options.host = {
+    ai = {
+      enable = lib.mkEnableOption "should we use AI on this machine";
+      models = lib.mkOption {
+        type = lib.types.attrsOf (lib.types.submodule ({name, ...}: {
+          option = {
+            name = lib.mkOption {
+              type = lib.types.str;
+              default = name;
+            };
+            model = {
+              type = lib.types.str;
+            };
+            provider = {
+              type = lib.types.str;
+              default = "ollama";
+            };
+            apiBase = {
+              type = lib.types.str;
+              default = null;
+            };
+            roles = {
+              type = lib.types.listOf lib.types.enumOf [
+                "chat"
+                "autocomplete"
+                "embed"
+                "rerank"
+                "edit"
+                "apply"
+                "summarize"
+              ];
+            };
+          };
+        }));
+      };
+    };
+  };
+
+  config = {
+    # TODO: configure ollama to download any modules listed in options.host.ai.models.{name}.model if options.host.ai.models.{name}.apiBase is null
+    # TODO: if we have any models that have a non null options.host.ai.models.{name}.apiBase then set services.ollama.enable to a lib.mkAfter true
+  };
+}