diff --git a/README.md b/README.md
index f63274d..7acb3e5 100644
--- a/README.md
+++ b/README.md
@@ -35,9 +35,9 @@ The kexec installer comes with the following features:
 
 - Re-uses ssh host keys from the sshd to not break `.ssh/known_hosts`
 - Authorized ssh keys are read from `/root/.ssh/authorized_keys`, `/root/.ssh/authorized_keys2` and `/etc/ssh/authorized_keys.d/root`
-- Static ip addresses and routes are restored after reboot. Interface that had
-  dynamic addresses before are configured with DHCP and to accept prefixes from
-  ipv6 router advertisment.
+- (experimental, only tested for nixos-unstable) Static ip addresses and routes
+  are restored after reboot. Interface that had dynamic addresses before are
+  configured with DHCP and to accept prefixes from ipv6 router advertisment
 
 
 The actual kexec happens with a slight delay (6s).  This allows for easier
diff --git a/flake.nix b/flake.nix
index 1957a51..72e1dec 100644
--- a/flake.nix
+++ b/flake.nix
@@ -21,7 +21,7 @@
     nixosModules.kexec-installer = import ./nix/kexec-installer/module.nix;
     checks.x86_64-linux = {
       kexec-installer-unstable = nixos-unstable.legacyPackages.x86_64-linux.callPackage ./nix/kexec-installer/test.nix {};
-      # FIXME: broken
+      # networkd fails to set ipv6 gateway in 2211
       #kexec-installer-2211 = nixos-2211.legacyPackages.x86_64-linux.callPackage ./nix/kexec-installer/test.nix {};
     };
   };