update

home/obs.nix

@@ -9,10 +9,11 @@
 #
 # OBS rewrites its own config on exit (user.ini geometry/DockState,
 # global.ini LastVersion, basic.ini whenever settings change). Those writes
-# replace the symlink with a regular file, which is harmless -- the next
-# nixos-rebuild switch moves it aside as *.hm-bak and relinks. The repo is the
-# source of truth, so anything changed in the OBS GUI that should stick has to
-# be copied back:
+# replace the symlink with a regular file. force = true makes the next
+# nixos-rebuild switch overwrite it without a backup -- a .hm-bak would only
+# collide with the previous one and fail activation. The repo is the source of
+# truth, so anything changed in the OBS GUI that should stick has to be copied
+# back before rebuilding:
 #
 #   cp -a ~/.config/obs-studio/user.ini config/obs-studio/user.ini
 #
@@ -29,5 +30,6 @@
   xdg.configFile."obs-studio" = {
     source = ../config/obs-studio;
     recursive = true;
+    force = true;
   };
 }