diff --git a/osysmon_main.c b/osysmon_main.c
new file mode 100644
index 0000000..72da2da
--- /dev/null
+++ b/osysmon_main.c
@@ -0,0 +1,145 @@
+/* Simple Osmocom System Monitor (osysmon) */
+
+/* (C) 2018 by Harald Welte <laforge@gnumonks.org>
+ * All Rights Reserved.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ *  MA  02110-1301, USA.
+ */
+
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <signal.h>
+
+#include "osysmon.h"
+#include "value_node.h"
+
+#include <osmocom/core/msgb.h>
+#include <osmocom/core/logging.h>
+#include <osmocom/core/application.h>
+
+static struct log_info log_info = {};
+
+static int osysmon_go_parent(struct vty *vty)
+{
+	switch (vty->node) {
+	case CTRL_CLIENT_NODE:
+	case CTRL_CLIENT_GETVAR_NODE:
+		return osysmon_ctrl_go_parent(vty);
+	}
+	return vty->node;
+}
+
+static int osysmon_is_config_node(struct vty *vty, int node)
+{
+	switch (node) {
+	/* no non-config-nodes */
+	default:
+		return 1;
+	}
+}
+
+
+static struct vty_app_info vty_info = {
+	.name = "osysmon",
+	.copyright =
+	"Copyright (C) 2008-2018 Harald Welte\r\n"
+	"License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl-2.0.html>\r\n"
+	"This is free software: you are free to change and redistribute it.\r\n"
+	"There is NO WARRANTY, to the extent permitted by law.\r\n",
+	.version = "0.0", //PACKAGE_VERSION
+	.go_parent_cb = osysmon_go_parent,
+	.is_config_node = osysmon_is_config_node,
+};
+
+
+static const char *config_file = "osysmon.cfg";
+struct osysmon_state *g_oss;
+
+
+static void print_node(struct value_node *node)
+{
+	if (node->value) {
+		printf("%s: %s\n", node->name, node->value);
+	} else {
+		struct value_node *vn;
+		llist_for_each_entry(vn, &node->children, list)
+			print_node(vn);
+	}
+}
+
+static void display_update(struct value_node *root)
+{
+	print_node(root);
+}
+
+static void signal_handler(int signal)
+{
+	fprintf(stderr, "Signal %u received", signal);
+
+	switch(signal) {
+	case SIGUSR1:
+		talloc_report(g_oss, stderr);
+		break;
+	default:
+		break;
+	}
+}
+
+static void exit_help(void)
+{
+	printf("Usage:\n");
+	printf("\tosmo-ctrl-client HOST PORT get VARIABLE\n");
+	printf("\tosmo-ctrl-client HOST PORT set VARIABLE VALUE\n");
+	printf("\tosmo-ctrl-client HOST PORT monitor\n");
+	exit(2);
+}
+
+int main(int argc, char **argv)
+{
+	int rc;
+
+	osmo_init_logging2(NULL, &log_info);
+
+	g_oss = talloc_zero(NULL, struct osysmon_state);
+	INIT_LLIST_HEAD(&g_oss->ctrl_clients);
+
+	vty_init(&vty_info);
+	osysmon_ctrl_init();
+
+	rc = vty_read_config_file(config_file, NULL);
+	if (rc < 0) {
+		fprintf(stderr, "Failed to parse the config file\n");
+		exit(2);
+	}
+
+	signal(SIGUSR1, &signal_handler);
+	signal(SIGUSR2, &signal_handler);
+	osmo_init_ignore_signals();
+
+	while (1) {
+		struct value_node *root = value_node_add(g_oss, NULL, "root", NULL);
+		osysmon_ctrl_poll(root);
+		display_update(root);
+		value_node_del(root);
+		sleep(1);
+	}
+
+	exit(0);
+}