diff --git a/backend/headless/backend.c b/backend/headless/backend.c
index e44595de..b14dda4a 100644
--- a/backend/headless/backend.c
+++ b/backend/headless/backend.c
@@ -1,6 +1,5 @@
 #include <assert.h>
 #include <stdlib.h>
-#include <wlr/interfaces/wlr_input_device.h>
 #include <wlr/interfaces/wlr_output.h>
 #include <wlr/util/log.h>
 #include "backend/headless.h"
diff --git a/backend/libinput/events.c b/backend/libinput/events.c
index 67ca49d5..e8d99f25 100644
--- a/backend/libinput/events.c
+++ b/backend/libinput/events.c
@@ -4,7 +4,6 @@
 #include <stdlib.h>
 #include <wayland-util.h>
 #include <wlr/backend/session.h>
-#include <wlr/interfaces/wlr_input_device.h>
 #include <wlr/util/log.h>
 #include "backend/libinput.h"
 #include "util/array.h"
@@ -63,7 +62,7 @@ static struct wlr_input_device *allocate_device(
 	wl_list_insert(wlr_devices, &dev->link);
 	dev->handle = libinput_dev;
 	libinput_device_ref(libinput_dev);
-	wlr_input_device_init(wlr_dev, type, NULL, name);
+	wlr_input_device_init(wlr_dev, type, name);
 	wlr_dev->vendor = libinput_device_get_id_vendor(libinput_dev);
 	wlr_dev->product = libinput_device_get_id_product(libinput_dev);
 	return wlr_dev;
diff --git a/backend/wayland/backend.c b/backend/wayland/backend.c
index a5b297ba..c0e99a22 100644
--- a/backend/wayland/backend.c
+++ b/backend/wayland/backend.c
@@ -13,7 +13,6 @@
 #include <xf86drm.h>
 
 #include <wlr/backend/interface.h>
-#include <wlr/interfaces/wlr_input_device.h>
 #include <wlr/interfaces/wlr_output.h>
 #include <wlr/util/log.h>
 
diff --git a/backend/wayland/seat.c b/backend/wayland/seat.c
index ae669c4d..28466bb3 100644
--- a/backend/wayland/seat.c
+++ b/backend/wayland/seat.c
@@ -9,7 +9,6 @@
 
 #include <wayland-client.h>
 
-#include <wlr/interfaces/wlr_input_device.h>
 #include <wlr/interfaces/wlr_keyboard.h>
 #include <wlr/interfaces/wlr_output.h>
 #include <wlr/interfaces/wlr_pointer.h>
@@ -494,7 +493,7 @@ struct wlr_wl_input_device *create_wl_input_device(
 	char name[name_size];
 	(void) snprintf(name, name_size, "wayland-%s-%s", type_name, seat->name);
 
-	wlr_input_device_init(wlr_dev, type, NULL, name);
+	wlr_input_device_init(wlr_dev, type, name);
 	wl_list_insert(&seat->backend->devices, &dev->link);
 	return dev;
 }
diff --git a/backend/wayland/tablet_v2.c b/backend/wayland/tablet_v2.c
index d24bf340..95cdd119 100644
--- a/backend/wayland/tablet_v2.c
+++ b/backend/wayland/tablet_v2.c
@@ -10,7 +10,6 @@
 #include <wlr/interfaces/wlr_tablet_pad.h>
 #include <wlr/interfaces/wlr_tablet_tool.h>
 #include <wlr/types/wlr_input_device.h>
-#include <wlr/interfaces/wlr_input_device.h>
 
 #include "util/signal.h"
 #include "util/time.h"
diff --git a/backend/x11/backend.c b/backend/x11/backend.c
index dbee4379..64bcf475 100644
--- a/backend/x11/backend.c
+++ b/backend/x11/backend.c
@@ -24,7 +24,6 @@
 
 #include <wlr/backend/interface.h>
 #include <wlr/backend/x11.h>
-#include <wlr/interfaces/wlr_input_device.h>
 #include <wlr/interfaces/wlr_keyboard.h>
 #include <wlr/interfaces/wlr_pointer.h>
 #include <wlr/util/log.h>
diff --git a/backend/x11/input_device.c b/backend/x11/input_device.c
index a2d7ef53..f87f53a0 100644
--- a/backend/x11/input_device.c
+++ b/backend/x11/input_device.c
@@ -10,7 +10,6 @@
 #include <xcb/xfixes.h>
 #include <xcb/xinput.h>
 
-#include <wlr/interfaces/wlr_input_device.h>
 #include <wlr/interfaces/wlr_keyboard.h>
 #include <wlr/interfaces/wlr_pointer.h>
 #include <wlr/interfaces/wlr_touch.h>
diff --git a/include/wlr/interfaces/wlr_input_device.h b/include/wlr/interfaces/wlr_input_device.h
deleted file mode 100644
index ab314807..00000000
--- a/include/wlr/interfaces/wlr_input_device.h
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * This an unstable interface of wlroots. No guarantees are made regarding the
- * future consistency of this API.
- */
-#ifndef WLR_USE_UNSTABLE
-#error "Add -DWLR_USE_UNSTABLE to enable unstable wlroots features"
-#endif
-
-#ifndef WLR_INTERFACES_WLR_INPUT_DEVICE_H
-#define WLR_INTERFACES_WLR_INPUT_DEVICE_H
-
-#include <wlr/types/wlr_input_device.h>
-
-struct wlr_input_device_impl {
-	void (*destroy)(struct wlr_input_device *wlr_device);
-};
-
-void wlr_input_device_init(struct wlr_input_device *wlr_device,
-	enum wlr_input_device_type type, const struct wlr_input_device_impl *impl,
-	const char *name);
-
-/**
- * Cleans up all of the provided wlr_input_device resources and signals the
- * destroy event.
- */
-void wlr_input_device_finish(struct wlr_input_device *wlr_device);
-
-/**
- * Calls the specialized input device destroy function.
- * If the wlr_input_device is not owned by a specialized input device, the
- * function will finish the wlr_input_device, and either call its implementation
- * destroy function if one has been given, or free the wlr_input_device.
- */
-void wlr_input_device_destroy(struct wlr_input_device *dev);
-
-#endif
diff --git a/include/wlr/types/wlr_input_device.h b/include/wlr/types/wlr_input_device.h
index cbc877df..1690a5b9 100644
--- a/include/wlr/types/wlr_input_device.h
+++ b/include/wlr/types/wlr_input_device.h
@@ -28,8 +28,6 @@ enum wlr_input_device_type {
 struct wlr_input_device_impl;
 
 struct wlr_input_device {
-	const struct wlr_input_device_impl *impl;
-
 	enum wlr_input_device_type type;
 	unsigned int vendor, product;
 	char *name;
@@ -55,4 +53,19 @@ struct wlr_input_device {
 	void *data;
 };
 
+void wlr_input_device_init(struct wlr_input_device *wlr_device,
+	enum wlr_input_device_type type, const char *name);
+
+/**
+ * Clean up all of the provided wlr_input_device resources
+ */
+void wlr_input_device_finish(struct wlr_input_device *wlr_device);
+
+/**
+ * Calls the specialized input device destroy function.
+ * If the wlr_input_device is not owned by a specialized input device, the
+ * function will finish the wlr_input_device and free it.
+ */
+void wlr_input_device_destroy(struct wlr_input_device *dev);
+
 #endif
diff --git a/include/wlr/types/wlr_virtual_keyboard_v1.h b/include/wlr/types/wlr_virtual_keyboard_v1.h
index 8be6158d..a818f141 100644
--- a/include/wlr/types/wlr_virtual_keyboard_v1.h
+++ b/include/wlr/types/wlr_virtual_keyboard_v1.h
@@ -10,8 +10,7 @@
 #define WLR_TYPES_WLR_VIRTUAL_KEYBOARD_V1_H
 
 #include <wayland-server-core.h>
-#include <wlr/interfaces/wlr_input_device.h>
-#include <wlr/interfaces/wlr_keyboard.h>
+#include <wlr/types/wlr_keyboard.h>
 
 struct wlr_virtual_keyboard_manager_v1 {
 	struct wl_global *global;
diff --git a/types/wlr_input_device.c b/types/wlr_input_device.c
index 8056556b..6897febe 100644
--- a/types/wlr_input_device.c
+++ b/types/wlr_input_device.c
@@ -2,7 +2,6 @@
 #include <stdlib.h>
 #include <string.h>
 #include <wayland-server-core.h>
-#include <wlr/interfaces/wlr_input_device.h>
 #include <wlr/interfaces/wlr_keyboard.h>
 #include <wlr/interfaces/wlr_pointer.h>
 #include <wlr/interfaces/wlr_switch.h>
@@ -14,10 +13,8 @@
 #include "util/signal.h"
 
 void wlr_input_device_init(struct wlr_input_device *dev,
-		enum wlr_input_device_type type,
-		const struct wlr_input_device_impl *impl, const char *name) {
+		enum wlr_input_device_type type, const char *name) {
 	dev->type = type;
-	dev->impl = impl;
 	dev->name = strdup(name);
 	dev->vendor = 0;
 	dev->product = 0;
@@ -64,10 +61,6 @@ void wlr_input_device_destroy(struct wlr_input_device *dev) {
 		}
 	} else {
 		wlr_input_device_finish(dev);
-		if (dev->impl && dev->impl->destroy) {
-			dev->impl->destroy(dev);
-		} else {
-			free(dev);
-		}
+		free(dev);
 	}
 }
diff --git a/types/wlr_keyboard.c b/types/wlr_keyboard.c
index 062c08a0..afa689b1 100644
--- a/types/wlr_keyboard.c
+++ b/types/wlr_keyboard.c
@@ -4,7 +4,6 @@
 #include <sys/mman.h>
 #include <unistd.h>
 #include <wayland-server-core.h>
-#include <wlr/interfaces/wlr_input_device.h>
 #include <wlr/interfaces/wlr_keyboard.h>
 #include <wlr/types/wlr_keyboard.h>
 #include <wlr/util/log.h>
@@ -116,7 +115,7 @@ void wlr_keyboard_notify_key(struct wlr_keyboard *keyboard,
 
 void wlr_keyboard_init(struct wlr_keyboard *kb,
 		const struct wlr_keyboard_impl *impl, const char *name) {
-	wlr_input_device_init(&kb->base, WLR_INPUT_DEVICE_KEYBOARD, NULL, name);
+	wlr_input_device_init(&kb->base, WLR_INPUT_DEVICE_KEYBOARD, name);
 	kb->base.keyboard = kb;
 
 	kb->impl = impl;
diff --git a/types/wlr_pointer.c b/types/wlr_pointer.c
index d6237c73..caabec1b 100644
--- a/types/wlr_pointer.c
+++ b/types/wlr_pointer.c
@@ -1,13 +1,12 @@
 #include <stdlib.h>
 #include <string.h>
 #include <wayland-server-core.h>
-#include <wlr/interfaces/wlr_input_device.h>
 #include <wlr/interfaces/wlr_pointer.h>
 #include <wlr/types/wlr_pointer.h>
 
 void wlr_pointer_init(struct wlr_pointer *pointer,
 		const struct wlr_pointer_impl *impl, const char *name) {
-	wlr_input_device_init(&pointer->base, WLR_INPUT_DEVICE_POINTER, NULL, name);
+	wlr_input_device_init(&pointer->base, WLR_INPUT_DEVICE_POINTER, name);
 	pointer->base.pointer = pointer;
 
 	pointer->impl = impl;
diff --git a/types/wlr_switch.c b/types/wlr_switch.c
index 629fa5ee..42611da9 100644
--- a/types/wlr_switch.c
+++ b/types/wlr_switch.c
@@ -1,14 +1,12 @@
 #include <stdlib.h>
 #include <string.h>
 #include <wayland-server-core.h>
-#include <wlr/interfaces/wlr_input_device.h>
 #include <wlr/interfaces/wlr_switch.h>
 #include <wlr/types/wlr_switch.h>
 
 void wlr_switch_init(struct wlr_switch *switch_device,
 		const struct wlr_switch_impl *impl, const char *name) {
-	wlr_input_device_init(&switch_device->base, WLR_INPUT_DEVICE_SWITCH, NULL,
-		name);
+	wlr_input_device_init(&switch_device->base, WLR_INPUT_DEVICE_SWITCH, name);
 	switch_device->base.switch_device = switch_device;
 
 	switch_device->impl = impl;
diff --git a/types/wlr_tablet_pad.c b/types/wlr_tablet_pad.c
index 861d1add..663ccd39 100644
--- a/types/wlr_tablet_pad.c
+++ b/types/wlr_tablet_pad.c
@@ -1,13 +1,12 @@
 #include <stdlib.h>
 #include <string.h>
 #include <wayland-server-core.h>
-#include <wlr/interfaces/wlr_input_device.h>
 #include <wlr/interfaces/wlr_tablet_pad.h>
 #include <wlr/types/wlr_tablet_pad.h>
 
 void wlr_tablet_pad_init(struct wlr_tablet_pad *pad,
 		const struct wlr_tablet_pad_impl *impl, const char *name) {
-	wlr_input_device_init(&pad->base, WLR_INPUT_DEVICE_TABLET_PAD, NULL, name);
+	wlr_input_device_init(&pad->base, WLR_INPUT_DEVICE_TABLET_PAD, name);
 	pad->base.tablet_pad = pad;
 
 	pad->impl = impl;
diff --git a/types/wlr_tablet_tool.c b/types/wlr_tablet_tool.c
index 12278e93..e50d29d1 100644
--- a/types/wlr_tablet_tool.c
+++ b/types/wlr_tablet_tool.c
@@ -1,14 +1,12 @@
 #include <stdlib.h>
 #include <string.h>
 #include <wayland-server-core.h>
-#include <wlr/interfaces/wlr_input_device.h>
 #include <wlr/interfaces/wlr_tablet_tool.h>
 #include <wlr/types/wlr_tablet_tool.h>
 
 void wlr_tablet_init(struct wlr_tablet *tablet,
 		const struct wlr_tablet_impl *impl, const char *name) {
-	wlr_input_device_init(&tablet->base, WLR_INPUT_DEVICE_TABLET_TOOL, NULL,
-		name);
+	wlr_input_device_init(&tablet->base, WLR_INPUT_DEVICE_TABLET_TOOL, name);
 	tablet->base.tablet = tablet;
 
 	tablet->impl = impl;
diff --git a/types/wlr_touch.c b/types/wlr_touch.c
index a0949933..36619110 100644
--- a/types/wlr_touch.c
+++ b/types/wlr_touch.c
@@ -1,13 +1,12 @@
 #include <stdlib.h>
 #include <string.h>
 #include <wayland-server-core.h>
-#include <wlr/interfaces/wlr_input_device.h>
 #include <wlr/interfaces/wlr_touch.h>
 #include <wlr/types/wlr_touch.h>
 
 void wlr_touch_init(struct wlr_touch *touch,
 		const struct wlr_touch_impl *impl, const char *name) {
-	wlr_input_device_init(&touch->base, WLR_INPUT_DEVICE_TOUCH, NULL, name);
+	wlr_input_device_init(&touch->base, WLR_INPUT_DEVICE_TOUCH, name);
 	touch->base.touch = touch;
 
 	touch->impl = impl;
diff --git a/types/wlr_virtual_keyboard_v1.c b/types/wlr_virtual_keyboard_v1.c
index dc549aa7..07eeb367 100644
--- a/types/wlr_virtual_keyboard_v1.c
+++ b/types/wlr_virtual_keyboard_v1.c
@@ -3,6 +3,7 @@
 #include <stdlib.h>
 #include <unistd.h>
 #include <sys/mman.h>
+#include <wlr/interfaces/wlr_keyboard.h>
 #include <wlr/types/wlr_seat.h>
 #include <wlr/types/wlr_virtual_keyboard_v1.h>
 #include <wlr/util/log.h>