Enable modules to persist data (#26201)

modules/qmk/nvm_test/config.h

@@ -0,0 +1,5 @@
+// Copyright 2026 QMK
+// SPDX-License-Identifier: GPL-2.0-or-later
+#pragma once
+
+#define EECONFIG_MODULE_NVM_TEST_DATA_SIZE 4

modules/qmk/nvm_test/nvm_test.c

@@ -0,0 +1,53 @@
+// Copyright 2026 QMK
+// SPDX-License-Identifier: GPL-2.0-or-later
+#include <stdint.h>
+#include "community_modules.h"
+#include "debug.h"
+#include "timer.h"
+#include "eeconfig.h"
+
+ASSERT_COMMUNITY_MODULES_MIN_API_VERSION(1, 1, 3);
+
+typedef struct my_config_t {
+    uint32_t data;
+} my_config_t;
+
+static my_config_t config;
+
+// Helpers required to bind to debounce helper
+void eeconfig_read_my_config(my_config_t *value) {
+    eeconfig_read_nvm_test_datablock(value, 0, sizeof(my_config_t));
+}
+void eeconfig_update_my_config(my_config_t *value) {
+    eeconfig_update_nvm_test_datablock(value, 0, sizeof(my_config_t));
+}
+
+EECONFIG_DEBOUNCE_HELPER(my_config, config);
+
+void keyboard_post_init_nvm_test(void) {
+    if (!eeconfig_is_nvm_test_datablock_valid()) {
+        eeconfig_init_nvm_test_datablock();
+    }
+
+    eeconfig_init_my_config();
+}
+
+bool process_record_nvm_test(uint16_t keycode, keyrecord_t *record) {
+    if (!record->event.pressed) {
+        config.data += 1;
+        eeconfig_flag_my_config(true);
+    }
+
+    return true;
+}
+
+void housekeeping_task_nvm_test(void) {
+    eeconfig_flush_my_config(false);
+
+    static uint32_t last_sync = 0;
+    if (timer_elapsed32(last_sync) > 1000) {
+        last_sync = timer_read32();
+
+        dprintf("Config: %ld\n", config.data);
+    }
+}

modules/qmk/nvm_test/qmk_module.json

@@ -0,0 +1,5 @@
+{
+    "module_name": "Example nvm persistence",
+    "maintainer": "QMK Maintainers",
+    "license": "GPL-2.0-or-later"
+}