diff -r 7e72b45f0d41 -r 8b8d4f8af38e ui/server/var.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ui/server/var.c	Sun Dec 14 18:54:57 2025 +0100
@@ -0,0 +1,88 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ *
+ * Copyright 2025 Olaf Wintermann. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright
+ *      notice, this list of conditions and the following disclaimer.
+ *
+ *   2. Redistributions in binary form must reproduce the above copyright
+ *      notice, this list of conditions and the following disclaimer in the
+ *      documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "toolkit.h"
+
+#include "var.h"
+
+static uint64_t var_counter = 0;
+
+char* ui_generate_var_id(const CxAllocator *a) {
+    char id[32];
+    snprintf(id, 32, "%" PRIx64, var_counter++);
+    return cx_strdup_a(a, id).ptr;
+}
+
+cxmutstr ui_server_bind_int(UiContext *ctx, UiInteger *i) {
+    i->obj = ui_generate_var_id(ctx->allocator);
+    i->get = ui_server_int_get;
+    i->set = ui_server_int_set;
+    return cx_mutstr(i->obj);
+}
+
+cxmutstr ui_server_bind_double(UiContext *ctx, UiDouble *d) {
+    d->obj = ui_generate_var_id(ctx->allocator);
+    d->get = ui_server_double_get;
+    d->set = ui_server_double_set;
+    return cx_mutstr(d->obj);
+}
+
+cxmutstr ui_server_bind_string(UiContext *ctx, UiString *s) {
+    s->obj = ui_generate_var_id(ctx->allocator);
+    s->get = ui_server_string_get;
+    s->set  = ui_server_string_set;
+    return cx_mutstr(s->obj);
+}
+
+
+int64_t ui_server_int_get(UiInteger *i) {
+    return 0;
+}
+
+void ui_server_int_set(UiInteger *i, int64_t value) {
+    
+}
+
+double ui_server_double_get(UiDouble *d) {
+    return 0;
+}
+
+void ui_server_double_set(UiDouble *d, double value) {
+    
+}
+
+char* ui_server_string_get(UiString *s) {
+    return NULL;
+}
+
+void ui_server_string_set(UiString *s, const char *str) {
+    
+}