Seatd uses /dev to determine devices. We to change that to GoboLinux paths.

diff -Nur seatd-0.6.4.old/common/drm.c seatd-0.6.4/common/drm.c
--- seatd-0.6.4.old/common/drm.c	2022-02-21 22:52:04.000000000 +0100
+++ seatd-0.6.4/common/drm.c	2022-03-11 22:19:50.700441262 +0100
@@ -26,7 +26,7 @@
 
 #if defined(__linux__)
 int path_is_drm(const char *path) {
-	static const char prefix[] = "/dev/dri/";
+	static const char prefix[] = "/System/Kernel/Devices/dri/";
 	static const int prefixlen = STRLEN(prefix);
 	return strncmp(prefix, path, prefixlen) == 0;
 }
diff -Nur seatd-0.6.4.old/common/evdev.c seatd-0.6.4/common/evdev.c
--- seatd-0.6.4.old/common/evdev.c	2022-02-21 22:52:04.000000000 +0100
+++ seatd-0.6.4/common/evdev.c	2022-03-11 22:22:03.707112849 +0100
@@ -18,7 +18,7 @@
 #define STRLEN(s) ((sizeof(s) / sizeof(s[0])) - 1)
 
 int path_is_evdev(const char *path) {
-	static const char prefix[] = "/dev/input/event";
+	static const char prefix[] = "/System/Kernel/Devices/input/event";
 	static const size_t prefixlen = STRLEN(prefix);
 	return strncmp(prefix, path, prefixlen) == 0;
 }