diff --git a/home/modules/firefox.nix b/home/modules/firefox.nix
index bc07a84..0de86f6 100644
--- a/home/modules/firefox.nix
+++ b/home/modules/firefox.nix
@@ -46,10 +46,10 @@
           ublock-origin
           unpaywall
           vimium-c
+          yomitan
           youtube-shorts-block
         ]) ++ (with pkgs.firefoxAddons; [
           fastforwardteam
-          rikaitan
           youtube-nonstop
         ]);
         search.default = "search.pavluk.org";
diff --git a/home/modules/nvim.nix b/home/modules/nvim.nix
index 87be3ea..1affb1d 100644
--- a/home/modules/nvim.nix
+++ b/home/modules/nvim.nix
@@ -473,7 +473,7 @@
     vimdiffAlias = true;
 
     extraConfigLua = compile "main" (
-      builtins.concatLists (map (x: if x?plugin && x?config then lib.toList x.config else [ ]) plugins) ++ [
+      builtins.concatLists (map (x: lib.toList (x.config or [ ])) plugins) ++ [
       (kmSetNs {
         "<C-X>" = {
           rhs = DEFUN (vim.fn.system [ "chmod" "+x" (vim.fn.expand "%") ]);
diff --git a/nixos-rebuild.py b/nixos-rebuild.py
index 7541d9f..1460c15 100755
--- a/nixos-rebuild.py
+++ b/nixos-rebuild.py
@@ -19,7 +19,7 @@ def main():
         addr = opts["addresses"][cfg]
     build_host = opts["build_host"].get(cfg)
     act = args[2]
-    assert act in ["boot", "switch", "test"]
+    assert act in ["boot", "switch", "test", "build"]
     args = args[3:]
     args.extend(
         [
@@ -66,6 +66,8 @@ def main():
     ret = json.loads(ret.stdout)[0]["outputs"]["out"]
     print('output', ret)
     cmds = []
+    if act in ["build"]:
+        return
     if act in ["boot", "switch"]:
         cmds.append(["nix-env", "-p", "/nix/var/nix/profiles/system", "--set", ret])
     cmds.append(
diff --git a/system/hosts/nixmsi.nix b/system/hosts/nixmsi.nix
index 65e03b5..ec11f86 100644
--- a/system/hosts/nixmsi.nix
+++ b/system/hosts/nixmsi.nix
@@ -129,7 +129,7 @@
   services.printing.drivers = [ pkgs.hplip ];
   # from nix-gaming
   services.pipewire.lowLatency = {
-    enable = false;
+    enable = true;
     # 96 is mostly fine but has some xruns
     # 128 has xruns every now and then too
     quantum = 128;
diff --git a/system/modules/common.nix b/system/modules/common.nix
index ff7d49a..f9568a8 100644
--- a/system/modules/common.nix
+++ b/system/modules/common.nix
@@ -124,6 +124,22 @@ in {
     # nixos-hardware uses mkDefault here, so we use slightly higher priority
     services.libinput.enable = mkForceDefault (!cfg.minimal);
     programs.fuse.userAllowOther = true;
+
+    # registry is used for the new flaky nix command
+    nix.registry =
+      builtins.mapAttrs
+      (_: v: { flake = v; })
+      (lib.filterAttrs (k: v: (k != "self" || !cfg.minimal) && v?outputs) inputs);
+
+    # add import'able flake inputs (like nixpkgs) to nix path
+    # nix path is used for old nix commands (like nix-build, nix-shell)
+    environment.etc = lib.mapAttrs'
+      (name: value: {
+        name = "nix/inputs/${name}";
+        value.source = value.outPath or "${value}";
+      })
+      (lib.filterAttrs (k: v: (k != "self" || !cfg.minimal) && builtins.pathExists "${v}/default.nix") inputs);
+
   }
 
   (lib.mkIf cfg.gettyAutologin {
@@ -183,21 +199,6 @@ in {
   })
 
   (lib.mkIf (!cfg.minimal) {
-    # registry is used for the new flaky nix command
-    nix.registry =
-      builtins.mapAttrs
-      (_: v: { flake = v; })
-      (lib.filterAttrs (_: v: v?outputs) inputs);
-
-    # add import'able flake inputs (like nixpkgs) to nix path
-    # nix path is used for old nix commands (like nix-build, nix-shell)
-    environment.etc = lib.mapAttrs'
-      (name: value: {
-        name = "nix/inputs/${name}";
-        value.source = value.outPath or "${value}";
-      })
-      (lib.filterAttrs (_: v: builtins.pathExists "${v}/default.nix") inputs);
-
     nix.nixPath = [ "/etc/nix/inputs" ];
     hardware.pulseaudio.enable = false;
     services.pipewire = {