diff --git a/krebs/5pkgs/override/default.nix b/krebs/5pkgs/override/default.nix
index c1d8fa3da..fe13b4309 100644
--- a/krebs/5pkgs/override/default.nix
+++ b/krebs/5pkgs/override/default.nix
@@ -20,6 +20,9 @@ self: super: {
       "0.10.1" = [
         ./flameshot/flameshot_imgur_0.9.0.patch
       ];
+      "0.10.2" = [
+        ./flameshot/flameshot_imgur_0.9.0.patch
+      ];
     }.${old.version} or [];
   });
 
diff --git a/tv/2configs/default.nix b/tv/2configs/default.nix
index de298e162..8add07ff6 100644
--- a/tv/2configs/default.nix
+++ b/tv/2configs/default.nix
@@ -94,8 +94,17 @@ with import <stockholm/lib>;
     {
       boot.kernel.sysctl = {
         # Enable IPv6 Privacy Extensions
-        "net.ipv6.conf.all.use_tempaddr" = 2;
-        "net.ipv6.conf.default.use_tempaddr" = 2;
+        #
+        # XXX use mkForce here because since NixOS 21.11 there's a collision in
+        # net.ipv6.conf.default.use_tempaddr, and boot.kernel.sysctl incapable
+        # of merging.
+        #
+        # XXX net.ipv6.conf.all.use_tempaddr is set because it was mentioned in
+        # https://tldp.org/HOWTO/Linux+IPv6-HOWTO/ch06s05.html
+        # TODO check if that is really necessary, otherwise we can rely solely
+        # on networking.tempAddresses in the future (when nothing is <21.11)
+        "net.ipv6.conf.all.use_tempaddr" = mkForce 2;
+        "net.ipv6.conf.default.use_tempaddr" = mkForce 2;
       };
     }
 
diff --git a/tv/2configs/gitrepos.nix b/tv/2configs/gitrepos.nix
index 6f4dedad6..fc76e5fd6 100644
--- a/tv/2configs/gitrepos.nix
+++ b/tv/2configs/gitrepos.nix
@@ -116,6 +116,9 @@ let {
     TabFS = {
       cgit.desc = "mount browser tabs & co. as a filesystem";
     };
+    texnix = {
+      cgit.desc = "TeX live environment generator";
+    };
     with-ssh = {};
   } // mapAttrs (_: recursiveUpdate { cgit.section = "2. Host configurations"; }) {
     ni = {
diff --git a/tv/2configs/hw/x220.nix b/tv/2configs/hw/x220.nix
index ecbb84a44..a4342fcce 100644
--- a/tv/2configs/hw/x220.nix
+++ b/tv/2configs/hw/x220.nix
@@ -26,6 +26,18 @@ in
          LIBINPUT_MODEL_LENOVO_X220_TOUCHPAD_FW81=1
       '';
     }
+
+    {
+      nix.buildCores = 2;
+      nix.maxJobs = 2;
+    }
+    (if lib.versionAtLeast lib.version "21.11" then {
+      nix.daemonCPUSchedPolicy = "batch";
+      nix.daemonIOSchedPriority = 1;
+    } else {
+      nix.daemonIONiceLevel = 1;
+      nix.daemonNiceLevel = 1;
+    })
   ];
 
   boot.extraModulePackages = [
@@ -54,12 +66,6 @@ in
     START_CHARGE_THRESH_BAT0 = 80;
   };
 
-  nix = {
-    buildCores = 2;
-    maxJobs = 2;
-    daemonIONiceLevel = 1;
-    daemonNiceLevel = 1;
-  };
 
   services.logind.extraConfig = ''
     HandleHibernateKey=ignore